updated Californium and Leshan versions

application/src/test/java/org/thingsboard/server/transport/coap/AbstractCoapIntegrationTest.java

@@ -52,6 +52,8 @@ import static org.junit.Assert.assertNotNull;
 @Slf4j
 public abstract class AbstractCoapIntegrationTest extends AbstractTransportIntegrationTest {
 
+    protected final byte[] EMPTY_PAYLOAD = new byte[0];
+
     protected CoapClient client;
 
     @Override

application/src/test/java/org/thingsboard/server/transport/coap/attributes/updates/AbstractCoapAttributesUpdatesProtoIntegrationTest.java

@@ -25,15 +25,13 @@ import org.thingsboard.server.common.data.CoapDeviceType;
 import org.thingsboard.server.common.data.TransportPayloadType;
 import org.thingsboard.server.gen.transport.TransportProtos;
 
-import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertTrue;
 
 @Slf4j
@@ -88,7 +86,7 @@ public abstract class AbstractCoapAttributesUpdatesProtoIntegrationTest extends
     }
 
     protected void validateEmptyCurrentStateAttributesResponse(TestCoapCallback callback) throws InvalidProtocolBufferException {
-        assertNull(callback.getPayloadBytes());
+        assertArrayEquals(EMPTY_PAYLOAD, callback.getPayloadBytes());
         assertNotNull(callback.getObserve());
         assertEquals(CoAP.ResponseCode.CONTENT, callback.getResponseCode());
         assertEquals(0, callback.getObserve().intValue());

application/src/test/java/org/thingsboard/server/transport/coap/rpc/AbstractCoapServerSideRpcIntegrationTest.java

@@ -31,13 +31,12 @@ import org.thingsboard.server.common.data.TransportPayloadType;
 import org.thingsboard.server.common.msg.session.FeatureType;
 import org.thingsboard.server.transport.coap.AbstractCoapIntegrationTest;
 
-import java.nio.charset.StandardCharsets;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
+import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
@@ -186,7 +185,7 @@ public abstract class AbstractCoapServerSideRpcIntegrationTest extends AbstractC
     }
 
     private void validateCurrentStateNotification(TestCoapCallback callback) {
-        assertNull(callback.getPayloadBytes());
+        assertArrayEquals(EMPTY_PAYLOAD, callback.getPayloadBytes());
         assertNotNull(callback.getObserve());
         assertEquals(callback.getResponseCode(), CoAP.ResponseCode.VALID);
         assertEquals(0, callback.getObserve().intValue());

application/src/test/java/org/thingsboard/server/transport/lwm2m/AbstractLwM2MIntegrationTest.java

@@ -17,7 +17,7 @@ package org.thingsboard.server.transport.lwm2m;
 
 import com.fasterxml.jackson.core.type.TypeReference;
 import org.apache.commons.io.IOUtils;
-import org.eclipse.californium.core.network.config.NetworkConfig;
+import org.eclipse.californium.elements.config.Configuration;
 import org.eclipse.leshan.client.object.Security;
 import org.junit.After;
 import org.junit.Assert;
@@ -174,7 +174,7 @@ public abstract class AbstractLwM2MIntegrationTest extends AbstractWebsocketTest
 
     public void basicTestConnectionObserveTelemetry(Security security,
                                                     LwM2MClientCredential credentials,
-                                                    NetworkConfig coapConfig,
+                                                    Configuration coapConfig,
                                                     String endpoint) throws Exception {
         createDeviceProfile(TRANSPORT_CONFIGURATION);
         Device device = createDevice(credentials);
@@ -259,7 +259,7 @@ public abstract class AbstractLwM2MIntegrationTest extends AbstractWebsocketTest
         this.resources = resources;
     }
 
-    public void createNewClient(Security security, NetworkConfig coapConfig, boolean isRpc, String endpoint) throws Exception {
+    public void createNewClient(Security security, Configuration coapConfig, boolean isRpc, String endpoint) throws Exception {
         clientDestroy();
         client = new LwM2MTestClient(this.executor, endpoint);
         int clientPort = SocketUtils.findAvailableTcpPort();

application/src/test/java/org/thingsboard/server/transport/lwm2m/Lwm2mTestHelper.java

@@ -15,9 +15,11 @@
  */
 package org.thingsboard.server.transport.lwm2m;
 
-import org.eclipse.californium.core.network.config.NetworkConfig;
+import org.eclipse.californium.elements.config.Configuration;
 import org.eclipse.leshan.client.object.Security;
 
+import static org.eclipse.californium.core.config.CoapConfig.COAP_PORT;
+import static org.eclipse.californium.core.config.CoapConfig.COAP_SECURE_PORT;
 import static org.eclipse.leshan.client.object.Security.noSec;
 
 public class Lwm2mTestHelper {
@@ -32,10 +34,10 @@ public class Lwm2mTestHelper {
     public static final int SHORT_SERVER_ID = 123;
     public static final int SHORT_SERVER_ID_BS = 111;
 
-    public static final NetworkConfig SECURE_COAP_CONFIG = new NetworkConfig().setString("COAP_SECURE_PORT", Integer.toString(SECURE_PORT));
+    public static final Configuration SECURE_COAP_CONFIG = new Configuration().set(COAP_SECURE_PORT, SECURE_PORT);
     public static final String SECURE_URI = "coaps://" + HOST + ":" + SECURE_PORT;
     public static final Security SECURITY = noSec("coap://"+ HOST +":" + PORT, SHORT_SERVER_ID);
-    public static final NetworkConfig COAP_CONFIG = new NetworkConfig().setString("COAP_PORT", Integer.toString(PORT));
+    public static final Configuration COAP_CONFIG = new Configuration().set(COAP_PORT, PORT);
 
     // Models
     public static final String[] resources = new String[]{"0.xml", "1.xml", "2.xml", "3.xml", "5.xml", "6.xml", "9.xml", "19.xml", "3303.xml"};

application/src/test/java/org/thingsboard/server/transport/lwm2m/client/FwLwM2MDevice.java

@@ -131,10 +131,10 @@ public class FwLwM2MDevice extends BaseInstanceEnabler implements Destroyable {
         scheduler.schedule(() -> {
             try {
                 state.set(1);
-                fireResourcesChange(3);
+                fireResourceChange(3);
                 Thread.sleep(100);
                 state.set(2);
-                fireResourcesChange(3);
+                fireResourceChange(3);
             } catch (Exception e) {
             }
         }, 100, TimeUnit.MILLISECONDS);
@@ -144,10 +144,10 @@ public class FwLwM2MDevice extends BaseInstanceEnabler implements Destroyable {
         scheduler.schedule(() -> {
             try {
                 state.set(3);
-                fireResourcesChange(3);
+                fireResourceChange(3);
                 Thread.sleep(100);
                 updateResult.set(1);
-                fireResourcesChange(5);
+                fireResourceChange(5);
             } catch (Exception e) {
             }
         }, 100, TimeUnit.MILLISECONDS);

application/src/test/java/org/thingsboard/server/transport/lwm2m/client/LwM2MTestClient.java

@@ -17,10 +17,7 @@ package org.thingsboard.server.transport.lwm2m.client;
 
 import lombok.Data;
 import lombok.extern.slf4j.Slf4j;
-import org.eclipse.californium.core.network.CoapEndpoint;
+import org.eclipse.californium.elements.config.Configuration;
-import org.eclipse.californium.core.network.config.NetworkConfig;
-import org.eclipse.californium.core.observe.ObservationStore;
-import org.eclipse.californium.scandium.DTLSConnector;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.eclipse.leshan.client.californium.LeshanClient;
 import org.eclipse.leshan.client.californium.LeshanClientBuilder;
@@ -32,7 +29,6 @@ import org.eclipse.leshan.client.resource.DummyInstanceEnabler;
 import org.eclipse.leshan.client.resource.ObjectsInitializer;
 import org.eclipse.leshan.client.servers.ServerIdentity;
 import org.eclipse.leshan.core.ResponseCode;
-import org.eclipse.leshan.core.californium.EndpointFactory;
 import org.eclipse.leshan.core.model.InvalidDDFFileException;
 import org.eclipse.leshan.core.model.LwM2mModel;
 import org.eclipse.leshan.core.model.ObjectLoader;
@@ -44,15 +40,15 @@ import org.eclipse.leshan.core.request.BootstrapRequest;
 import org.eclipse.leshan.core.request.DeregisterRequest;
 import org.eclipse.leshan.core.request.RegisterRequest;
 import org.eclipse.leshan.core.request.UpdateRequest;
-import org.thingsboard.server.transport.lwm2m.utils.LwM2mValueConverterImpl;
 import org.junit.Assert;
+import org.thingsboard.server.transport.lwm2m.utils.LwM2mValueConverterImpl;
 
 import java.io.IOException;
-import java.net.InetSocketAddress;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ScheduledExecutorService;
 
+import static org.eclipse.californium.scandium.config.DtlsConfig.DTLS_RECOMMENDED_CIPHER_SUITES_ONLY;
 import static org.eclipse.leshan.core.LwM2mId.ACCESS_CONTROL;
 import static org.eclipse.leshan.core.LwM2mId.DEVICE;
 import static org.eclipse.leshan.core.LwM2mId.FIRMWARE;
@@ -61,10 +57,10 @@ import static org.eclipse.leshan.core.LwM2mId.SECURITY;
 import static org.eclipse.leshan.core.LwM2mId.SERVER;
 import static org.eclipse.leshan.core.LwM2mId.SOFTWARE_MANAGEMENT;
 import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.BINARY_APP_DATA_CONTAINER;
-import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.TEMPERATURE_SENSOR;
 import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.OBJECT_INSTANCE_ID_0;
 import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.OBJECT_INSTANCE_ID_1;
 import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.OBJECT_INSTANCE_ID_12;
+import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.TEMPERATURE_SENSOR;
 import static org.thingsboard.server.transport.lwm2m.Lwm2mTestHelper.resources;
 
 
@@ -84,7 +80,7 @@ public class LwM2MTestClient {
     private LwM2MLocationParams locationParams;
     private LwM2mTemperatureSensor lwM2MTemperatureSensor;
 
-    public void init(Security security, NetworkConfig coapConfig, int port, boolean isRpc) throws InvalidDDFFileException, IOException {
+    public void init(Security security, Configuration coapConfig, int port, boolean isRpc) throws InvalidDDFFileException, IOException {
         Assert.assertNull("client already initialized", client);
         List<ObjectModel> models = new ArrayList<>();
         for (String resourceName : resources) {
@@ -106,44 +102,19 @@ public class LwM2MTestClient {
         initializer.setInstancesForObject(LOCATION, new LwM2mLocation(locationParams.getLatitude(), locationParams.getLongitude(), locationParams.getScaleFactor(), executor, OBJECT_INSTANCE_ID_0));
         initializer.setInstancesForObject(TEMPERATURE_SENSOR, lwM2MTemperatureSensor = new LwM2mTemperatureSensor(executor, OBJECT_INSTANCE_ID_0), new LwM2mTemperatureSensor(executor, OBJECT_INSTANCE_ID_12));
 
-        DtlsConnectorConfig.Builder dtlsConfig = new DtlsConnectorConfig.Builder();
+        DtlsConnectorConfig.Builder dtlsConfig = new DtlsConnectorConfig.Builder(coapConfig);
-        dtlsConfig.setRecommendedCipherSuitesOnly(true);
+        dtlsConfig.set(DTLS_RECOMMENDED_CIPHER_SUITES_ONLY, true);
-        dtlsConfig.setClientOnly();
 
         DefaultRegistrationEngineFactory engineFactory = new DefaultRegistrationEngineFactory();
         engineFactory.setReconnectOnUpdate(false);
         engineFactory.setResumeOnConnect(true);
 
-        EndpointFactory endpointFactory = new EndpointFactory() {
-
-            @Override
-            public CoapEndpoint createUnsecuredEndpoint(InetSocketAddress address, NetworkConfig coapConfig,
-                                                        ObservationStore store) {
-                CoapEndpoint.Builder builder = new CoapEndpoint.Builder();
-                builder.setInetSocketAddress(address);
-                builder.setNetworkConfig(coapConfig);
-                return builder.build();
-            }
-
-            @Override
-            public CoapEndpoint createSecuredEndpoint(DtlsConnectorConfig dtlsConfig, NetworkConfig coapConfig,
-                                                      ObservationStore store) {
-                CoapEndpoint.Builder builder = new CoapEndpoint.Builder();
-                DtlsConnectorConfig.Builder dtlsConfigBuilder = new DtlsConnectorConfig.Builder(dtlsConfig);
-                builder.setConnector(new DTLSConnector(dtlsConfigBuilder.build()));
-                builder.setNetworkConfig(coapConfig);
-                return builder.build();
-            }
-        };
-
-
         LeshanClientBuilder builder = new LeshanClientBuilder(endpoint);
         builder.setLocalAddress("0.0.0.0", port);
         builder.setObjects(initializer.createAll());
         builder.setCoapConfig(coapConfig);
         builder.setDtlsConfig(dtlsConfig);
         builder.setRegistrationEngineFactory(engineFactory);
-        builder.setEndpointFactory(endpointFactory);
         builder.setSharedExecutor(executor);
         builder.setDecoder(new DefaultLwM2mDecoder(false));
 

application/src/test/java/org/thingsboard/server/transport/lwm2m/client/LwM2mBinaryAppDataContainer.java

@@ -81,8 +81,11 @@ public class LwM2mBinaryAppDataContainer extends BaseInstanceEnabler implements
     public LwM2mBinaryAppDataContainer(ScheduledExecutorService executorService, Integer id) {
         try {
             if (id != null) this.setId(id);
-            executorService.scheduleWithFixedDelay(() ->
+            executorService.scheduleWithFixedDelay(() -> {
-                    fireResourcesChange(0, 2), 1800000, 1800000, TimeUnit.MILLISECONDS); // 30 MIN
+                        fireResourceChange(0);
+                        fireResourceChange(2);
+                    }
+                    , 1800000, 1800000, TimeUnit.MILLISECONDS); // 30 MIN
         } catch (Throwable e) {
             log.error("[{}]Throwable", e.toString());
             e.printStackTrace();
@@ -126,23 +129,23 @@ public class LwM2mBinaryAppDataContainer extends BaseInstanceEnabler implements
                 }
             case 1:
                 setPriority((Integer) (value.getValue() instanceof Long ? ((Long) value.getValue()).intValue() : value.getValue()));
-                fireResourcesChange(resourceId);
+                fireResourceChange(resourceId);
                 return WriteResponse.success();
             case 2:
                 setTimestamp(((Date) value.getValue()).getTime());
-                fireResourcesChange(resourceId);
+                fireResourceChange(resourceId);
                 return WriteResponse.success();
             case 3:
                 setDescription((String) value.getValue());
-                fireResourcesChange(resourceId);
+                fireResourceChange(resourceId);
                 return WriteResponse.success();
             case 4:
                 setDataFormat((String) value.getValue());
-                fireResourcesChange(resourceId);
+                fireResourceChange(resourceId);
                 return WriteResponse.success();
             case 5:
                 setAppID((Integer) value.getValue());
-                fireResourcesChange(resourceId);
+                fireResourceChange(resourceId);
                 return WriteResponse.success();
             default:
                 return super.write(identity, replace, resourceId, value);
@@ -185,7 +188,7 @@ public class LwM2mBinaryAppDataContainer extends BaseInstanceEnabler implements
         try {
             if (value instanceof LwM2mMultipleResource) {
                 if (replace || this.data == null) {
-                    this.data =  new HashMap<>();
+                    this.data = new HashMap<>();
                 }
                 value.getInstances().values().forEach(v -> {
                     this.data.put(v.getId(), (byte[]) v.getValue());

application/src/test/java/org/thingsboard/server/transport/lwm2m/client/LwM2mLocation.java

@@ -74,8 +74,10 @@ public class LwM2mLocation extends BaseInstanceEnabler implements Destroyable {
             }
             this.scaleFactor = scaleFactor;
             timestamp = new Date();
-            executorService.scheduleWithFixedDelay(() ->
+            executorService.scheduleWithFixedDelay(() -> {
-                    fireResourcesChange(0, 1), 10000, 10000, TimeUnit.MILLISECONDS);
+                fireResourceChange(0);
+                fireResourceChange(1);
+            }, 10000, 10000, TimeUnit.MILLISECONDS);
         } catch (Throwable e) {
             log.error("[{}]Throwable", e.toString());
             e.printStackTrace();
@@ -117,13 +119,16 @@ public class LwM2mLocation extends BaseInstanceEnabler implements Destroyable {
     private void moveLatitude(float delta) {
         latitude = latitude + delta * scaleFactor;
         timestamp = new Date();
-        fireResourcesChange(0, 5);
+        fireResourceChange(0);
+        fireResourceChange(5);
     }
 
     private void moveLongitude(float delta) {
         longitude = longitude + delta * scaleFactor;
         timestamp = new Date();
-        fireResourcesChange(1, 5);
+        fireResourceChange(1);
+        fireResourceChange(5);
+
     }
 
     public float getLatitude() {

application/src/test/java/org/thingsboard/server/transport/lwm2m/client/LwM2mTemperatureSensor.java

@@ -93,10 +93,9 @@ public class LwM2mTemperatureSensor extends BaseInstanceEnabler implements Destr
         float delta = (RANDOM.nextInt(20) - 10) / 10f;
         currentTemp += delta;
         Integer changedResource = adjustMinMaxMeasuredValue(currentTemp);
+        fireResourceChange(5700);
         if (changedResource != null) {
-            fireResourcesChange(5700, changedResource);
+            fireResourceChange(changedResource);
-        } else {
-            fireResourcesChange(5700);
         }
     }
 
@@ -127,5 +126,4 @@ public class LwM2mTemperatureSensor extends BaseInstanceEnabler implements Destr
     }
 
 
-
 }

application/src/test/java/org/thingsboard/server/transport/lwm2m/client/SimpleLwM2MDevice.java

@@ -18,6 +18,7 @@ package org.thingsboard.server.transport.lwm2m.client;
 import lombok.extern.slf4j.Slf4j;
 import org.eclipse.leshan.client.resource.BaseInstanceEnabler;
 import org.eclipse.leshan.client.servers.ServerIdentity;
+import org.eclipse.leshan.core.Destroyable;
 import org.eclipse.leshan.core.model.ObjectModel;
 import org.eclipse.leshan.core.model.ResourceModel;
 import org.eclipse.leshan.core.node.LwM2mResource;
@@ -25,7 +26,6 @@ import org.eclipse.leshan.core.response.ExecuteResponse;
 import org.eclipse.leshan.core.response.ReadResponse;
 import org.eclipse.leshan.core.response.WriteResponse;
 
-import javax.security.auth.Destroyable;
 import java.text.SimpleDateFormat;
 import java.util.Arrays;
 import java.util.Calendar;
@@ -103,11 +103,11 @@ public class SimpleLwM2MDevice extends BaseInstanceEnabler implements Destroyabl
                 return WriteResponse.notFound();
             case 14:
                 setUtcOffset((String) value.getValue());
-                fireResourcesChange(resourceId);
+                fireResourceChange(resourceId);
                 return WriteResponse.success();
             case 15:
                 setTimezone((String) value.getValue());
-                fireResourcesChange(resourceId);
+                fireResourceChange(resourceId);
                 return WriteResponse.success();
             default:
                 return super.write(identity, replace, resourceId, value);

application/src/test/java/org/thingsboard/server/transport/lwm2m/client/SwLwM2MDevice.java

@@ -128,16 +128,17 @@ public class SwLwM2MDevice extends BaseInstanceEnabler implements Destroyable {
             try {
                 state.set(1);
                 updateResult.set(1);
-                fireResourcesChange(7, 9);
+                fireResourceChange(7);
+                fireResourceChange(9);
                 Thread.sleep(100);
                 state.set(2);
-                fireResourcesChange(7);
+                fireResourceChange(7);
                 Thread.sleep(100);
                 state.set(3);
-                fireResourcesChange(7);
+                fireResourceChange(7);
                 Thread.sleep(100);
                 updateResult.set(3);
-                fireResourcesChange(9);
+                fireResourceChange(9);
             } catch (Exception e) {
 
             }
@@ -148,7 +149,8 @@ public class SwLwM2MDevice extends BaseInstanceEnabler implements Destroyable {
         scheduler.schedule(() -> {
             state.set(4);
             updateResult.set(2);
-            fireResourcesChange(7, 9);
+            fireResourceChange(7);
+            fireResourceChange(9);
         }, 100, TimeUnit.MILLISECONDS);
     }
 

application/src/test/java/org/thingsboard/server/transport/lwm2m/ota/sql/OtaLwM2MIntegrationTest.java

@@ -201,9 +201,9 @@ public class OtaLwM2MIntegrationTest extends AbstractOtaLwM2MIntegrationTest {
     @Test
     public void testSoftwareUpdateByObject9() throws Exception {
         createDeviceProfile(OTA_TRANSPORT_CONFIGURATION);
-        NoSecClientCredential credentials = createNoSecClientCredentials(this.CLIENT_ENDPOINT_OTA9);
+        NoSecClientCredential credentials = createNoSecClientCredentials(CLIENT_ENDPOINT_OTA9);
         final Device device = createDevice(credentials);
-        createNewClient(SECURITY, COAP_CONFIG, false, this.CLIENT_ENDPOINT_OTA9);
+        createNewClient(SECURITY, COAP_CONFIG, false, CLIENT_ENDPOINT_OTA9);
 
         Thread.sleep(1000);
 

application/src/test/java/org/thingsboard/server/transport/lwm2m/rpc/sql/RpcLwm2mIntegrationDiscoverTest.java

@@ -52,8 +52,8 @@ public class RpcLwm2mIntegrationDiscoverTest extends AbstractRpcLwM2MIntegration
         Set actualObjects = ConcurrentHashMap.newKeySet();
         Set actualInstances = ConcurrentHashMap.newKeySet();
         rpcActualValue.forEach(node -> {
-            if (!node.get("url").asText().equals("/")) {
+            if (!node.get("uriReference").asText().equals("/")) {
-                LwM2mPath path = new LwM2mPath(node.get("url").asText());
+                LwM2mPath path = new LwM2mPath(node.get("uriReference").asText());
                 actualObjects.add("/" + path.getObjectId());
                 if (path.isObjectInstance()) {
                     actualInstances.add("/" + path.getObjectId() + "/" + path.getObjectInstanceId());

common/coap-server/src/main/java/org/thingsboard/server/coapserver/CoapServerService.java

@@ -17,6 +17,7 @@ package org.thingsboard.server.coapserver;
 
 import org.eclipse.californium.core.CoapServer;
 
+import java.net.InetSocketAddress;
 import java.net.UnknownHostException;
 import java.util.concurrent.ConcurrentMap;
 
@@ -24,7 +25,7 @@ public interface CoapServerService {
 
     CoapServer getCoapServer() throws UnknownHostException;
 
-    ConcurrentMap<String, TbCoapDtlsSessionInfo> getDtlsSessionsMap();
+    ConcurrentMap<InetSocketAddress, TbCoapDtlsSessionInfo> getDtlsSessionsMap();
 
     long getTimeout();
 

common/coap-server/src/main/java/org/thingsboard/server/coapserver/DefaultCoapServerService.java

@@ -18,8 +18,9 @@ package org.thingsboard.server.coapserver;
 import lombok.extern.slf4j.Slf4j;
 import org.eclipse.californium.core.CoapServer;
 import org.eclipse.californium.core.network.CoapEndpoint;
-import org.eclipse.californium.core.network.config.NetworkConfig;
+import org.eclipse.californium.core.config.CoapConfig;
 import org.eclipse.californium.core.server.resources.Resource;
+import org.eclipse.californium.elements.config.Configuration;
 import org.eclipse.californium.scandium.DTLSConnector;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -37,7 +38,7 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
 
-import static org.eclipse.californium.core.network.config.NetworkConfigDefaults.DEFAULT_BLOCKWISE_STATUS_LIFETIME;
+import static org.eclipse.californium.core.config.CoapConfig.DEFAULT_BLOCKWISE_STATUS_LIFETIME_IN_SECONDS;
 
 @Slf4j
 @Component
@@ -78,8 +79,8 @@ public class DefaultCoapServerService implements CoapServerService {
     }
 
     @Override
-    public ConcurrentMap<String, TbCoapDtlsSessionInfo> getDtlsSessionsMap() {
+    public ConcurrentMap<InetSocketAddress, TbCoapDtlsSessionInfo> getDtlsSessionsMap() {
-        return tbDtlsCertificateVerifier != null ? tbDtlsCertificateVerifier.getTbCoapDtlsSessionIdsMap() : null;
+        return tbDtlsCertificateVerifier != null ? tbDtlsCertificateVerifier.getTbCoapDtlsSessionsMap() : null;
     }
 
     @Override
@@ -88,16 +89,16 @@ public class DefaultCoapServerService implements CoapServerService {
     }
 
     private CoapServer createCoapServer() throws UnknownHostException {
-        NetworkConfig networkConfig = new NetworkConfig();
+        Configuration networkConfig = new Configuration();
-        networkConfig.setBoolean(NetworkConfig.Keys.BLOCKWISE_STRICT_BLOCK2_OPTION, true);
+        networkConfig.set(CoapConfig.BLOCKWISE_STRICT_BLOCK2_OPTION, true);
-        networkConfig.setBoolean(NetworkConfig.Keys.BLOCKWISE_ENTITY_TOO_LARGE_AUTO_FAILOVER, true);
+        networkConfig.set(CoapConfig.BLOCKWISE_ENTITY_TOO_LARGE_AUTO_FAILOVER, true);
-        networkConfig.setLong(NetworkConfig.Keys.BLOCKWISE_STATUS_LIFETIME, DEFAULT_BLOCKWISE_STATUS_LIFETIME);
+        networkConfig.set(CoapConfig.BLOCKWISE_STATUS_LIFETIME, DEFAULT_BLOCKWISE_STATUS_LIFETIME_IN_SECONDS, TimeUnit.SECONDS);
-        networkConfig.setInt(NetworkConfig.Keys.MAX_RESOURCE_BODY_SIZE, 256 * 1024 * 1024);
+        networkConfig.set(CoapConfig.MAX_RESOURCE_BODY_SIZE, 256 * 1024 * 1024);
-        networkConfig.setString(NetworkConfig.Keys.RESPONSE_MATCHING, "RELAXED");
+        networkConfig.set(CoapConfig.RESPONSE_MATCHING, CoapConfig.MatcherMode.RELAXED);
-        networkConfig.setInt(NetworkConfig.Keys.PREFERRED_BLOCK_SIZE, 1024);
+        networkConfig.set(CoapConfig.PREFERRED_BLOCK_SIZE, 1024);
-        networkConfig.setInt(NetworkConfig.Keys.MAX_MESSAGE_SIZE, 1024);
+        networkConfig.set(CoapConfig.MAX_MESSAGE_SIZE, 1024);
-        networkConfig.setInt(NetworkConfig.Keys.MAX_RETRANSMIT, 4);
+        networkConfig.set(CoapConfig.MAX_RETRANSMIT, 4);
-        networkConfig.setInt(NetworkConfig.Keys.COAP_PORT, coapServerContext.getPort());
+        networkConfig.set(CoapConfig.COAP_PORT, coapServerContext.getPort());
         server = new CoapServer(networkConfig);
 
         CoapEndpoint.Builder noSecCoapEndpointBuilder = new CoapEndpoint.Builder();
@@ -105,15 +106,15 @@ public class DefaultCoapServerService implements CoapServerService {
         InetSocketAddress sockAddr = new InetSocketAddress(addr, coapServerContext.getPort());
         noSecCoapEndpointBuilder.setInetSocketAddress(sockAddr);
 
-        noSecCoapEndpointBuilder.setNetworkConfig(networkConfig);
+        noSecCoapEndpointBuilder.setConfiguration(networkConfig);
         CoapEndpoint noSecCoapEndpoint = noSecCoapEndpointBuilder.build();
         server.addEndpoint(noSecCoapEndpoint);
         if (isDtlsEnabled()) {
             CoapEndpoint.Builder dtlsCoapEndpointBuilder = new CoapEndpoint.Builder();
             TbCoapDtlsSettings dtlsSettings = coapServerContext.getDtlsSettings();
-            DtlsConnectorConfig dtlsConnectorConfig = dtlsSettings.dtlsConnectorConfig();
+            DtlsConnectorConfig dtlsConnectorConfig = dtlsSettings.dtlsConnectorConfig(networkConfig);
-            networkConfig.setInt(NetworkConfig.Keys.COAP_SECURE_PORT, dtlsConnectorConfig.getAddress().getPort());
+            networkConfig.set(CoapConfig.COAP_SECURE_PORT, dtlsConnectorConfig.getAddress().getPort());
-            dtlsCoapEndpointBuilder.setNetworkConfig(networkConfig);
+            dtlsCoapEndpointBuilder.setConfiguration(networkConfig);
             DTLSConnector connector = new DTLSConnector(dtlsConnectorConfig);
             dtlsCoapEndpointBuilder.setConnector(connector);
             CoapEndpoint dtlsCoapEndpoint = dtlsCoapEndpointBuilder.build();

common/coap-server/src/main/java/org/thingsboard/server/coapserver/TbCoapDtlsCertificateVerifier.java

@@ -23,7 +23,6 @@ import org.eclipse.californium.scandium.dtls.CertificateMessage;
 import org.eclipse.californium.scandium.dtls.CertificateType;
 import org.eclipse.californium.scandium.dtls.CertificateVerificationResult;
 import org.eclipse.californium.scandium.dtls.ConnectionId;
-import org.eclipse.californium.scandium.dtls.DTLSSession;
 import org.eclipse.californium.scandium.dtls.HandshakeException;
 import org.eclipse.californium.scandium.dtls.HandshakeResultHandler;
 import org.eclipse.californium.scandium.dtls.x509.NewAdvancedCertificateVerifier;
@@ -34,13 +33,13 @@ import org.thingsboard.server.common.data.DeviceTransportType;
 import org.thingsboard.server.common.msg.EncryptionUtil;
 import org.thingsboard.server.common.transport.TransportService;
 import org.thingsboard.server.common.transport.TransportServiceCallback;
-import org.thingsboard.server.common.transport.auth.SessionInfoCreator;
 import org.thingsboard.server.common.transport.auth.ValidateDeviceCredentialsResponse;
 import org.thingsboard.server.common.transport.util.SslUtil;
 import org.thingsboard.server.gen.transport.TransportProtos;
 import org.thingsboard.server.queue.discovery.TbServiceInfoProvider;
 
 import javax.security.auth.x500.X500Principal;
+import java.net.InetSocketAddress;
 import java.security.cert.CertPath;
 import java.security.cert.CertificateEncodingException;
 import java.security.cert.CertificateExpiredException;
@@ -48,7 +47,6 @@ import java.security.cert.CertificateNotYetValidException;
 import java.security.cert.X509Certificate;
 import java.util.Collections;
 import java.util.List;
-import java.util.UUID;
 import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
@@ -71,12 +69,12 @@ public class TbCoapDtlsCertificateVerifier implements NewAdvancedCertificateVeri
     }
 
     @Override
-    public List<CertificateType> getSupportedCertificateType() {
+    public List<CertificateType> getSupportedCertificateTypes() {
         return Collections.singletonList(CertificateType.X_509);
     }
 
     @Override
-    public CertificateVerificationResult verifyCertificate(ConnectionId cid, ServerNames serverName, Boolean clientUsage, boolean truncateCertificatePath, CertificateMessage message, DTLSSession session) {
+    public CertificateVerificationResult verifyCertificate(ConnectionId cid, ServerNames serverName, InetSocketAddress remotePeer, boolean clientUsage, boolean verifySubject, boolean truncateCertificatePath, CertificateMessage message) {
         try {
             CertPath certpath = message.getCertificateChain();
             X509Certificate[] chain = certpath.getCertificates().toArray(new X509Certificate[0]);
@@ -111,7 +109,7 @@ public class TbCoapDtlsCertificateVerifier implements NewAdvancedCertificateVeri
                     if (msg != null && strCert.equals(msg.getCredentials())) {
                         DeviceProfile deviceProfile = msg.getDeviceProfile();
                         if (msg.hasDeviceInfo() && deviceProfile != null) {
-                            tbCoapDtlsSessionInMemoryStorage.put(session.getSessionIdentifier().toString(), new TbCoapDtlsSessionInfo(msg, deviceProfile));
+                            tbCoapDtlsSessionInMemoryStorage.put(remotePeer, new TbCoapDtlsSessionInfo(msg, deviceProfile));
                         }
                         break;
                     }
@@ -120,8 +118,7 @@ public class TbCoapDtlsCertificateVerifier implements NewAdvancedCertificateVeri
                         CertificateExpiredException |
                         CertificateNotYetValidException e) {
                     log.error(e.getMessage(), e);
-                    AlertMessage alert = new AlertMessage(AlertMessage.AlertLevel.FATAL, AlertMessage.AlertDescription.BAD_CERTIFICATE,
+                    AlertMessage alert = new AlertMessage(AlertMessage.AlertLevel.FATAL, AlertMessage.AlertDescription.BAD_CERTIFICATE);
-                            session.getPeer());
                     throw new HandshakeException("Certificate chain could not be validated", alert);
                 }
             }
@@ -141,8 +138,8 @@ public class TbCoapDtlsCertificateVerifier implements NewAdvancedCertificateVeri
     public void setResultHandler(HandshakeResultHandler resultHandler) {
     }
 
-    public ConcurrentMap<String, TbCoapDtlsSessionInfo> getTbCoapDtlsSessionIdsMap() {
+    public ConcurrentMap<InetSocketAddress, TbCoapDtlsSessionInfo> getTbCoapDtlsSessionsMap() {
-        return tbCoapDtlsSessionInMemoryStorage.getDtlsSessionIdMap();
+        return tbCoapDtlsSessionInMemoryStorage.getDtlsSessionsMap();
     }
 
     public void evictTimeoutSessions() {

common/coap-server/src/main/java/org/thingsboard/server/coapserver/TbCoapDtlsSessionInMemoryStorage.java

@@ -18,6 +18,7 @@ package org.thingsboard.server.coapserver;
 import lombok.Data;
 import lombok.extern.slf4j.Slf4j;
 
+import java.net.InetSocketAddress;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 
@@ -25,7 +26,7 @@ import java.util.concurrent.ConcurrentMap;
 @Data
 public class TbCoapDtlsSessionInMemoryStorage {
 
-    private final ConcurrentMap<String, TbCoapDtlsSessionInfo> dtlsSessionIdMap = new ConcurrentHashMap<>();
+    private final ConcurrentMap<InetSocketAddress, TbCoapDtlsSessionInfo> dtlsSessionsMap = new ConcurrentHashMap<>();
     private long dtlsSessionInactivityTimeout;
     private long dtlsSessionReportTimeout;
 
@@ -35,14 +36,14 @@ public class TbCoapDtlsSessionInMemoryStorage {
         this.dtlsSessionReportTimeout = dtlsSessionReportTimeout;
     }
 
-    public void put(String dtlsSessionId, TbCoapDtlsSessionInfo dtlsSessionInfo) {
+    public void put(InetSocketAddress remotePeer, TbCoapDtlsSessionInfo dtlsSessionInfo) {
-        log.trace("DTLS session added to in-memory store: [{}] timestamp: [{}]", dtlsSessionId, dtlsSessionInfo.getLastActivityTime());
+        log.trace("DTLS session added to in-memory store: [{}] timestamp: [{}]", remotePeer, dtlsSessionInfo.getLastActivityTime());
-        dtlsSessionIdMap.putIfAbsent(dtlsSessionId, dtlsSessionInfo);
+        dtlsSessionsMap.putIfAbsent(remotePeer, dtlsSessionInfo);
     }
 
     public void evictTimeoutSessions() {
         long expTime = System.currentTimeMillis() - dtlsSessionInactivityTimeout;
-        dtlsSessionIdMap.entrySet().removeIf(entry -> {
+        dtlsSessionsMap.entrySet().removeIf(entry -> {
             if (entry.getValue().getLastActivityTime() < expTime) {
                 log.trace("DTLS session was removed from in-memory store: [{}]", entry.getKey());
                 return true;

common/coap-server/src/main/java/org/thingsboard/server/coapserver/TbCoapDtlsSettings.java

@@ -16,9 +16,13 @@
 package org.thingsboard.server.coapserver;
 
 import lombok.extern.slf4j.Slf4j;
+import org.eclipse.californium.elements.config.CertificateAuthenticationMode;
+import org.eclipse.californium.elements.config.Configuration;
 import org.eclipse.californium.elements.util.SslContextUtil;
+import org.eclipse.californium.scandium.config.DtlsConfig;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.eclipse.californium.scandium.dtls.CertificateType;
+import org.eclipse.californium.scandium.dtls.x509.SingleCertificateProvider;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.annotation.Value;
@@ -26,17 +30,14 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.stereotype.Component;
-import org.thingsboard.server.common.data.ResourceUtils;
 import org.thingsboard.server.common.transport.TransportService;
 import org.thingsboard.server.common.transport.config.ssl.SslCredentials;
 import org.thingsboard.server.common.transport.config.ssl.SslCredentialsConfig;
 import org.thingsboard.server.queue.discovery.TbServiceInfoProvider;
 
-import java.io.IOException;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.UnknownHostException;
-import java.security.GeneralSecurityException;
 import java.util.Collections;
 
 @Slf4j
@@ -75,15 +76,14 @@ public class TbCoapDtlsSettings {
     @Autowired
     private TbServiceInfoProvider serviceInfoProvider;
 
-    public DtlsConnectorConfig dtlsConnectorConfig() throws UnknownHostException {
+    public DtlsConnectorConfig dtlsConnectorConfig(Configuration configuration) throws UnknownHostException {
-        DtlsConnectorConfig.Builder configBuilder = new DtlsConnectorConfig.Builder();
+        DtlsConnectorConfig.Builder configBuilder = new DtlsConnectorConfig.Builder(configuration);
         configBuilder.setAddress(getInetSocketAddress());
         SslCredentials sslCredentials = this.coapDtlsCredentialsConfig.getCredentials();
         SslContextUtil.Credentials serverCredentials =
                 new SslContextUtil.Credentials(sslCredentials.getPrivateKey(), null, sslCredentials.getCertificateChain());
-        configBuilder.setServerOnly(true);
+        configBuilder.set(DtlsConfig.DTLS_ROLE, DtlsConfig.DtlsRole.SERVER_ONLY);
-        configBuilder.setClientAuthenticationRequired(false);
+        configBuilder.set(DtlsConfig.DTLS_CLIENT_AUTHENTICATION_MODE, CertificateAuthenticationMode.WANTED);
-        configBuilder.setClientAuthenticationWanted(true);
         configBuilder.setAdvancedCertificateVerifier(
                 new TbCoapDtlsCertificateVerifier(
                         transportService,
@@ -93,8 +93,8 @@ public class TbCoapDtlsSettings {
                         skipValidityCheckForClientCert
                 )
         );
-        configBuilder.setIdentity(serverCredentials.getPrivateKey(), serverCredentials.getCertificateChain(),
+        configBuilder.setCertificateIdentityProvider(new SingleCertificateProvider(serverCredentials.getPrivateKey(), serverCredentials.getCertificateChain(),
-                Collections.singletonList(CertificateType.X_509));
+                Collections.singletonList(CertificateType.X_509)));
         return configBuilder.build();
     }
 

common/coap-server/src/main/java/org/thingsboard/server/coapserver/TbCoapServerMessageDeliverer.java

@@ -18,6 +18,7 @@ package org.thingsboard.server.coapserver;
 import lombok.extern.slf4j.Slf4j;
 import org.eclipse.californium.core.coap.OptionSet;
 import org.eclipse.californium.core.network.Exchange;
+import org.eclipse.californium.core.server.DelivererException;
 import org.eclipse.californium.core.server.ServerMessageDeliverer;
 import org.eclipse.californium.core.server.resources.Resource;
 import org.springframework.util.CollectionUtils;
@@ -32,7 +33,7 @@ public class TbCoapServerMessageDeliverer extends ServerMessageDeliverer {
     }
 
     @Override
-    protected Resource findResource(Exchange exchange) {
+    protected Resource findResource(Exchange exchange) throws DelivererException {
         validateUriPath(exchange);
         return findResource(exchange.getRequest().getOptions().getUriPath());
     }

common/transport/coap/src/main/java/org/thingsboard/server/transport/coap/CoapTransportResource.java

@@ -30,7 +30,6 @@ import org.thingsboard.server.coapserver.TbCoapDtlsSessionInfo;
 import org.thingsboard.server.common.data.DataConstants;
 import org.thingsboard.server.common.data.DeviceProfile;
 import org.thingsboard.server.common.data.DeviceTransportType;
-import org.thingsboard.server.common.data.StringUtils;
 import org.thingsboard.server.common.data.TransportPayloadType;
 import org.thingsboard.server.common.data.security.DeviceTokenCredentials;
 import org.thingsboard.server.common.msg.session.FeatureType;
@@ -48,6 +47,7 @@ import org.thingsboard.server.transport.coap.callback.ToServerRpcSyncSessionCall
 import org.thingsboard.server.transport.coap.client.CoapClientContext;
 import org.thingsboard.server.transport.coap.client.TbCoapClientState;
 
+import java.net.InetSocketAddress;
 import java.util.List;
 import java.util.Optional;
 import java.util.Random;
@@ -56,6 +56,8 @@ import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 
+import static org.eclipse.californium.elements.DtlsEndpointContext.KEY_SESSION_ID;
+
 @Slf4j
 public class CoapTransportResource extends AbstractCoapTransportResource {
     private static final int ACCESS_TOKEN_POSITION = 3;
@@ -64,9 +66,8 @@ public class CoapTransportResource extends AbstractCoapTransportResource {
 
     private static final int FEATURE_TYPE_POSITION_CERTIFICATE_REQUEST = 3;
     private static final int REQUEST_ID_POSITION_CERTIFICATE_REQUEST = 4;
-    private static final String DTLS_SESSION_ID_KEY = "DTLS_SESSION_ID";
 
-    private final ConcurrentMap<String, TbCoapDtlsSessionInfo> dtlsSessionIdMap;
+    private final ConcurrentMap<InetSocketAddress, TbCoapDtlsSessionInfo> dtlsSessionsMap;
     private final long timeout;
     private final CoapClientContext clients;
 
@@ -74,7 +75,7 @@ public class CoapTransportResource extends AbstractCoapTransportResource {
         super(ctx, name);
         this.setObservable(true); // enable observing
         this.addObserver(new CoapResourceObserver());
-        this.dtlsSessionIdMap = coapServerService.getDtlsSessionsMap();
+        this.dtlsSessionsMap = coapServerService.getDtlsSessionsMap();
         this.timeout = coapServerService.getTimeout();
         this.clients = ctx.getClientContext();
         long sessionReportTimeout = ctx.getSessionReportTimeout();
@@ -91,7 +92,7 @@ public class CoapTransportResource extends AbstractCoapTransportResource {
         if (relation == null || relation.isCanceled()) {
             return; // because request did not try to establish a relation
         }
-        if (CoAP.ResponseCode.isSuccess(response.getCode())) {
+        if (response.getCode().isSuccess()) {
             if (!relation.isEstablished()) {
                 relation.setEstablished();
                 addObserveRelation(relation);
@@ -198,10 +199,10 @@ public class CoapTransportResource extends AbstractCoapTransportResource {
         Exchange advanced = exchange.advanced();
         Request request = advanced.getRequest();
 
-        String dtlsSessionIdStr = request.getSourceContext().get(DTLS_SESSION_ID_KEY);
+        var dtlsSessionId = request.getSourceContext().get(KEY_SESSION_ID);
-        if (dtlsSessionIdMap != null && StringUtils.isNotEmpty(dtlsSessionIdStr)) {
+        if (dtlsSessionsMap != null && dtlsSessionId != null && !dtlsSessionId.isEmpty()) {
-            TbCoapDtlsSessionInfo tbCoapDtlsSessionInfo = dtlsSessionIdMap
+            TbCoapDtlsSessionInfo tbCoapDtlsSessionInfo = dtlsSessionsMap
-                    .computeIfPresent(dtlsSessionIdStr, (dtlsSessionId, dtlsSessionInfo) -> {
+                    .computeIfPresent(request.getSourceContext().getPeerAddress(), (dtlsSessionIdStr, dtlsSessionInfo) -> {
                         dtlsSessionInfo.setLastActivityTime(System.currentTimeMillis());
                         return dtlsSessionInfo;
                     });

common/transport/coap/src/main/java/org/thingsboard/server/transport/coap/TbCoapMessageObserver.java

@@ -29,6 +29,11 @@ public class TbCoapMessageObserver implements MessageObserver {
     private final Consumer<Integer> onAcknowledge;
     private final Consumer<Integer> onTimeout;
 
+    @Override
+    public boolean isInternal() {
+        return false;
+    }
+
     @Override
     public void onRetransmission() {
 
@@ -86,13 +91,18 @@ public class TbCoapMessageObserver implements MessageObserver {
 
     }
 
+    @Override
+    public void onResponseHandlingError(Throwable cause) {
+
+    }
+
     @Override
     public void onContextEstablished(EndpointContext endpointContext) {
 
     }
 
     @Override
-    public void onComplete() {
+    public void onTransferComplete() {
 
     }
 }

common/transport/coap/src/main/java/org/thingsboard/server/transport/coap/client/SecureClientNoAuth.java

@@ -21,11 +21,13 @@ import org.eclipse.californium.core.Utils;
 import org.eclipse.californium.core.network.CoapEndpoint;
 import org.eclipse.californium.elements.DtlsEndpointContext;
 import org.eclipse.californium.elements.EndpointContext;
+import org.eclipse.californium.elements.config.Configuration;
 import org.eclipse.californium.elements.exception.ConnectorException;
 import org.eclipse.californium.elements.util.SslContextUtil;
 import org.eclipse.californium.scandium.DTLSConnector;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.eclipse.californium.scandium.dtls.CertificateType;
+import org.eclipse.californium.scandium.dtls.x509.SingleCertificateProvider;
 import org.eclipse.californium.scandium.dtls.x509.StaticNewAdvancedCertificateVerifier;
 import org.thingsboard.common.util.ThingsBoardThreadFactory;
 
@@ -118,7 +120,7 @@ public class SecureClientNoAuth {
         String keyStorePassword = args[6];
 
 
-        DtlsConnectorConfig.Builder builder = new DtlsConnectorConfig.Builder();
+        DtlsConnectorConfig.Builder builder = new DtlsConnectorConfig.Builder(new Configuration());
         setupCredentials(builder, keyStoreUriPath, keyStoreAlias, trustedAliasPattern, keyStorePassword);
         DTLSConnector dtlsConnector = new DTLSConnector(builder.build());
         SecureClientNoAuth client = new SecureClientNoAuth(dtlsConnector, host, port, accessToken, clientKeys, sharedKeys);
@@ -134,7 +136,7 @@ public class SecureClientNoAuth {
                     keyStoreUriPath, trustedAliasPattern, keyStorePassword.toCharArray());
             trustBuilder.setTrustedCertificates(trustedCertificates);
             config.setAdvancedCertificateVerifier(trustBuilder.build());
-            config.setIdentity(serverCredentials.getPrivateKey(), serverCredentials.getCertificateChain(), Collections.singletonList(CertificateType.X_509));
+            config.setCertificateIdentityProvider(new SingleCertificateProvider(serverCredentials.getPrivateKey(), serverCredentials.getCertificateChain(), Collections.singletonList(CertificateType.X_509)));
         } catch (GeneralSecurityException e) {
             System.err.println("certificates are invalid!");
             throw new IllegalArgumentException(e.getMessage());

common/transport/coap/src/main/java/org/thingsboard/server/transport/coap/client/SecureClientX509.java

@@ -21,11 +21,13 @@ import org.eclipse.californium.core.Utils;
 import org.eclipse.californium.core.network.CoapEndpoint;
 import org.eclipse.californium.elements.DtlsEndpointContext;
 import org.eclipse.californium.elements.EndpointContext;
+import org.eclipse.californium.elements.config.Configuration;
 import org.eclipse.californium.elements.exception.ConnectorException;
 import org.eclipse.californium.elements.util.SslContextUtil;
 import org.eclipse.californium.scandium.DTLSConnector;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.eclipse.californium.scandium.dtls.CertificateType;
+import org.eclipse.californium.scandium.dtls.x509.SingleCertificateProvider;
 import org.eclipse.californium.scandium.dtls.x509.StaticNewAdvancedCertificateVerifier;
 import org.thingsboard.common.util.ThingsBoardThreadFactory;
 
@@ -117,7 +119,7 @@ public class SecureClientX509 {
         String keyStorePassword = args[5];
 
 
-        DtlsConnectorConfig.Builder builder = new DtlsConnectorConfig.Builder();
+        DtlsConnectorConfig.Builder builder = new DtlsConnectorConfig.Builder(new Configuration());
         setupCredentials(builder, keyStoreUriPath, keyStoreAlias, trustedAliasPattern, keyStorePassword);
         DTLSConnector dtlsConnector = new DTLSConnector(builder.build());
         SecureClientX509 client = new SecureClientX509(dtlsConnector, host, port, clientKeys, sharedKeys);
@@ -133,7 +135,7 @@ public class SecureClientX509 {
                     keyStoreUriPath, trustedAliasPattern, keyStorePassword.toCharArray());
             trustBuilder.setTrustedCertificates(trustedCertificates);
             config.setAdvancedCertificateVerifier(trustBuilder.build());
-            config.setIdentity(serverCredentials.getPrivateKey(), serverCredentials.getCertificateChain(), Collections.singletonList(CertificateType.X_509));
+            config.setCertificateIdentityProvider(new SingleCertificateProvider(serverCredentials.getPrivateKey(), serverCredentials.getCertificateChain(), Collections.singletonList(CertificateType.X_509)));
         } catch (GeneralSecurityException e) {
             System.err.println("certificates are invalid!");
             throw new IllegalArgumentException(e.getMessage());

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/bootstrap/LwM2MTransportBootstrapService.java

@@ -17,6 +17,7 @@ package org.thingsboard.server.transport.lwm2m.bootstrap;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.eclipse.californium.scandium.config.DtlsConfig;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.eclipse.leshan.server.bootstrap.BootstrapSessionManager;
 import org.eclipse.leshan.server.californium.bootstrap.LeshanBootstrapServer;
@@ -36,6 +37,8 @@ import javax.annotation.PostConstruct;
 import javax.annotation.PreDestroy;
 import java.security.cert.X509Certificate;
 
+import static org.eclipse.californium.scandium.config.DtlsConfig.DTLS_RECOMMENDED_CIPHER_SUITES_ONLY;
+import static org.eclipse.californium.scandium.config.DtlsConfig.DTLS_RECOMMENDED_CURVES_ONLY;
 import static org.thingsboard.server.transport.lwm2m.server.LwM2MNetworkConfig.getCoapConfig;
 
 @Slf4j
@@ -86,10 +89,10 @@ public class LwM2MTransportBootstrapService {
 
 
         /* Create and Set DTLS Config */
-        DtlsConnectorConfig.Builder dtlsConfig = new DtlsConnectorConfig.Builder();
+        DtlsConnectorConfig.Builder dtlsConfig = new DtlsConnectorConfig.Builder(getCoapConfig(bootstrapConfig.getPort(), bootstrapConfig.getSecurePort(), serverConfig));
-        dtlsConfig.setRecommendedSupportedGroupsOnly(serverConfig.isRecommendedSupportedGroups());
+        dtlsConfig.set(DTLS_RECOMMENDED_CURVES_ONLY, serverConfig.isRecommendedSupportedGroups());
-        dtlsConfig.setRecommendedCipherSuitesOnly(serverConfig.isRecommendedCiphers());
+        dtlsConfig.set(DTLS_RECOMMENDED_CIPHER_SUITES_ONLY, serverConfig.isRecommendedCiphers());
-        dtlsConfig.setSupportedCipherSuites(this.pskMode ? DefaultLwM2mTransportService.PSK_CIPHER_SUITES : DefaultLwM2mTransportService.RPK_OR_X509_CIPHER_SUITES);
+        dtlsConfig.setAsList(DtlsConfig.DTLS_CIPHER_SUITES, this.pskMode ? DefaultLwM2mTransportService.PSK_CIPHER_SUITES : DefaultLwM2mTransportService.RPK_OR_X509_CIPHER_SUITES);
 
         /* Set DTLS Config */
         builder.setDtlsConfig(dtlsConfig);

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/bootstrap/store/LwM2MBootstrapConfigStoreTaskProvider.java

@@ -16,7 +16,7 @@
 package org.thingsboard.server.transport.lwm2m.bootstrap.store;
 
 import lombok.extern.slf4j.Slf4j;
-import org.eclipse.leshan.core.Link;
+import org.eclipse.leshan.core.link.Link;
 import org.eclipse.leshan.core.node.LwM2mObject;
 import org.eclipse.leshan.core.node.LwM2mPath;
 import org.eclipse.leshan.core.request.BootstrapDeleteRequest;
@@ -134,18 +134,18 @@ public class LwM2MBootstrapConfigStoreTaskProvider implements BootstrapTaskProvi
         log.info("Object after discover: [{}]", objectLinks);
         this.securityInstances = new HashMap<>();
         for (Link link : objectLinks) {
-            if (link.getUrl().startsWith("/0/")) {
+            if (link.getUriReference().startsWith("/0/")) {
                 try {
-                    LwM2mPath path = new LwM2mPath(link.getUrl());
+                    LwM2mPath path = new LwM2mPath(link.getUriReference());
                     if (path.isObjectInstance()) {
-                        if (link.getAttributes().containsKey("ssid")) {
+                        if (link.getLinkParams().containsKey("ssid")) {
-                            int serverId = Integer.parseInt(link.getAttributes().get("ssid"));
+                            int serverId = Integer.parseInt(link.getLinkParams().get("ssid").getUnquoted());
                             if (!this.securityInstances.containsKey(serverId)) {
                                 this.securityInstances.put(serverId, path.getObjectInstanceId());
                             } else {
                                 log.error("Invalid lwm2mSecurityInstance by [{}]", path.getObjectInstanceId());
                             }
-                            this.securityInstances.put(Integer.valueOf(link.getAttributes().get("ssid")), path.getObjectInstanceId());
+                            this.securityInstances.put(Integer.valueOf(link.getLinkParams().get("ssid").getUnquoted()), path.getObjectInstanceId());
                         } else {
                             if (!this.securityInstances.containsKey(0)) {
                                 this.securityInstances.put(0, path.getObjectInstanceId());
@@ -188,10 +188,10 @@ public class LwM2MBootstrapConfigStoreTaskProvider implements BootstrapTaskProvi
     private void initAfterBootstrapDiscover(BootstrapDiscoverResponse response) {
         Link[] links = response.getObjectLinks();
         Arrays.stream(links).forEach(link -> {
-            LwM2mPath path = new LwM2mPath(link.getUrl());
+            LwM2mPath path = new LwM2mPath(link.getUriReference());
             if (!path.isRoot() && path.getObjectId() < 3) {
                 if (path.isObject()) {
-                    String ver = link.getAttributes().get("ver") != null ? link.getAttributes().get("ver") : "1.0";
+                    String ver = link.getLinkParams().get("ver") != null ? link.getLinkParams().get("ver").getUnquoted() : "1.0";
                     this.supportedObjects.put(path.getObjectId(), ver);
                 }
             }

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/config/LwM2mVersion.java → common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/config/TbLwM2mVersion.java

@@ -16,31 +16,31 @@
 package org.thingsboard.server.transport.lwm2m.config;
 
 import lombok.Getter;
-import org.eclipse.leshan.core.LwM2m.Version;
+import org.eclipse.leshan.core.LwM2m.LwM2mVersion;
 import org.eclipse.leshan.core.request.ContentFormat;
 
-public enum LwM2mVersion {
+public enum TbLwM2mVersion {
-    VERSION_1_0(0, Version.V1_0, ContentFormat.TLV, false),
+    VERSION_1_0(0, LwM2mVersion.V1_0, ContentFormat.TLV, false),
-    VERSION_1_1(1, Version.V1_1, ContentFormat.TEXT, true);
+    VERSION_1_1(1, LwM2mVersion.V1_1, ContentFormat.TEXT, true);
 
     @Getter
     private final int code;
     @Getter
-    private final Version version;
+    private final LwM2mVersion version;
     @Getter
     private final ContentFormat contentFormat;
     @Getter
     private final boolean composite;
 
-    LwM2mVersion(int code, Version version, ContentFormat contentFormat, boolean composite) {
+    TbLwM2mVersion(int code, LwM2mVersion version, ContentFormat contentFormat, boolean composite) {
         this.code = code;
         this.version = version;
         this.contentFormat = contentFormat;
         this.composite = composite;
     }
 
-    public static LwM2mVersion fromVersion(Version version) {
+    public static TbLwM2mVersion fromVersion(LwM2mVersion version) {
-        for (LwM2mVersion to : LwM2mVersion.values()) {
+        for (TbLwM2mVersion to : TbLwM2mVersion.values()) {
             if (to.version.equals(version)) {
                 return to;
             }
@@ -48,8 +48,8 @@ public enum LwM2mVersion {
         throw new IllegalArgumentException(String.format("Unsupported typeLwM2mVersion type : %s", version));
     }
 
-    public static LwM2mVersion fromVersionStr(String versionStr) {
+    public static TbLwM2mVersion fromVersionStr(String versionStr) {
-        for (LwM2mVersion to : LwM2mVersion.values()) {
+        for (TbLwM2mVersion to : TbLwM2mVersion.values()) {
             if (to.version.toString().equals(versionStr)) {
                 return to;
             }
@@ -57,8 +57,8 @@ public enum LwM2mVersion {
         throw new IllegalArgumentException(String.format("Unsupported contentFormatLwM2mVersion version : %s", versionStr));
     }
 
-    public static LwM2mVersion fromCode(int code) {
+    public static TbLwM2mVersion fromCode(int code) {
-        for (LwM2mVersion to : LwM2mVersion.values()) {
+        for (TbLwM2mVersion to : TbLwM2mVersion.values()) {
             if (to.code == code) {
                 return to;
             }

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/secure/TbLwM2MDtlsCertificateVerifier.java

@@ -17,19 +17,18 @@ package org.thingsboard.server.transport.lwm2m.secure;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.eclipse.californium.elements.auth.RawPublicKeyIdentity;
 import org.eclipse.californium.elements.util.CertPathUtil;
 import org.eclipse.californium.scandium.dtls.AlertMessage;
 import org.eclipse.californium.scandium.dtls.CertificateMessage;
 import org.eclipse.californium.scandium.dtls.CertificateType;
 import org.eclipse.californium.scandium.dtls.CertificateVerificationResult;
 import org.eclipse.californium.scandium.dtls.ConnectionId;
-import org.eclipse.californium.scandium.dtls.DTLSSession;
 import org.eclipse.californium.scandium.dtls.HandshakeException;
 import org.eclipse.californium.scandium.dtls.HandshakeResultHandler;
 import org.eclipse.californium.scandium.dtls.x509.NewAdvancedCertificateVerifier;
-import org.eclipse.californium.scandium.dtls.x509.StaticCertificateVerifier;
+import org.eclipse.californium.scandium.dtls.x509.StaticNewAdvancedCertificateVerifier;
 import org.eclipse.californium.scandium.util.ServerNames;
-import org.eclipse.leshan.core.util.SecurityUtil;
 import org.eclipse.leshan.server.security.NonUniqueSecurityInfoException;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
@@ -50,6 +49,7 @@ import org.thingsboard.server.transport.lwm2m.server.store.TbMainSecurityStore;
 
 import javax.annotation.PostConstruct;
 import javax.security.auth.x500.X500Principal;
+import java.net.InetSocketAddress;
 import java.security.InvalidAlgorithmParameterException;
 import java.security.NoSuchAlgorithmException;
 import java.security.PublicKey;
@@ -81,18 +81,16 @@ public class TbLwM2MDtlsCertificateVerifier implements NewAdvancedCertificateVer
     private final LwM2mCredentialsSecurityInfoValidator securityInfoValidator;
     private final TbMainSecurityStore securityStore;
 
-    @SuppressWarnings("deprecation")
+    private StaticNewAdvancedCertificateVerifier staticCertificateVerifier;
-    private StaticCertificateVerifier staticCertificateVerifier;
 
     @Value("${transport.lwm2m.server.security.skip_validity_check_for_client_cert:false}")
     private boolean skipValidityCheckForClientCert;
 
     @Override
-    public List<CertificateType> getSupportedCertificateType() {
+    public List<CertificateType> getSupportedCertificateTypes() {
         return Arrays.asList(CertificateType.X_509, CertificateType.RAW_PUBLIC_KEY);
     }
 
-    @SuppressWarnings("deprecation")
     @PostConstruct
     public void init() {
         try {
@@ -101,14 +99,14 @@ public class TbLwM2MDtlsCertificateVerifier implements NewAdvancedCertificateVer
             if (config.getTrustSslCredentials() != null) {
                 trustedCertificates = config.getTrustSslCredentials().getTrustedCertificates();
             }
-            staticCertificateVerifier = new StaticCertificateVerifier(trustedCertificates);
+            staticCertificateVerifier = new StaticNewAdvancedCertificateVerifier(trustedCertificates, new RawPublicKeyIdentity[]{}, null);
         } catch (Exception e) {
             log.info("Failed to initialize the ");
         }
     }
 
     @Override
-    public CertificateVerificationResult verifyCertificate(ConnectionId cid, ServerNames serverName, Boolean clientUsage, boolean truncateCertificatePath, CertificateMessage message, DTLSSession session) {
+    public CertificateVerificationResult verifyCertificate(ConnectionId cid, ServerNames serverName, InetSocketAddress remotePeer, boolean clientUsage, boolean verifySubject, boolean truncateCertificatePath, CertificateMessage message) {
         CertPath certChain = message.getCertificateChain();
         if (certChain == null) {
             //We trust all RPK on this layer, and use TbLwM2MAuthorizer
@@ -177,10 +175,9 @@ public class TbLwM2MDtlsCertificateVerifier implements NewAdvancedCertificateVer
                 }
                 if (!x509CredentialsFound) {
                     if (staticCertificateVerifier != null) {
-                        staticCertificateVerifier.verifyCertificate(message, session);
+                        staticCertificateVerifier.verifyCertificate(cid, serverName, remotePeer, clientUsage, verifySubject, truncateCertificatePath, message);
                     } else {
-                        AlertMessage alert = new AlertMessage(AlertMessage.AlertLevel.FATAL, AlertMessage.AlertDescription.INTERNAL_ERROR,
+                        AlertMessage alert = new AlertMessage(AlertMessage.AlertLevel.FATAL, AlertMessage.AlertDescription.INTERNAL_ERROR);
-                                session.getPeer());
                         throw new HandshakeException("x509 verification not enabled!", alert);
                     }
                 }

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/DefaultLwM2mTransportService.java

@@ -17,6 +17,7 @@ package org.thingsboard.server.transport.lwm2m.server;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.eclipse.californium.scandium.config.DtlsConfig;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.eclipse.californium.scandium.dtls.cipher.CipherSuite;
 import org.eclipse.leshan.core.node.codec.DefaultLwM2mDecoder;
@@ -40,6 +41,8 @@ import org.thingsboard.server.transport.lwm2m.utils.LwM2mValueConverterImpl;
 import javax.annotation.PreDestroy;
 import java.security.cert.X509Certificate;
 
+import static org.eclipse.californium.scandium.config.DtlsConfig.DTLS_RECOMMENDED_CIPHER_SUITES_ONLY;
+import static org.eclipse.californium.scandium.config.DtlsConfig.DTLS_RECOMMENDED_CURVES_ONLY;
 import static org.eclipse.californium.scandium.dtls.cipher.CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256;
 import static org.eclipse.californium.scandium.dtls.cipher.CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8;
 import static org.eclipse.californium.scandium.dtls.cipher.CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA256;
@@ -121,11 +124,12 @@ public class DefaultLwM2mTransportService implements LwM2MTransportService {
 
 
         /* Create DTLS Config */
-        DtlsConnectorConfig.Builder dtlsConfig = new DtlsConnectorConfig.Builder();
+        DtlsConnectorConfig.Builder dtlsConfig = new DtlsConnectorConfig.Builder(getCoapConfig(config.getPort(), config.getSecurePort(), config));
+
+        dtlsConfig.set(DtlsConfig.DTLS_ROLE, DtlsConfig.DtlsRole.SERVER_ONLY);
+        dtlsConfig.set(DTLS_RECOMMENDED_CURVES_ONLY, config.isRecommendedSupportedGroups());
+        dtlsConfig.set(DTLS_RECOMMENDED_CIPHER_SUITES_ONLY, config.isRecommendedCiphers());
 
-        dtlsConfig.setServerOnly(true);
-        dtlsConfig.setRecommendedSupportedGroupsOnly(config.isRecommendedSupportedGroups());
-        dtlsConfig.setRecommendedCipherSuitesOnly(config.isRecommendedCiphers());
         /*  Create credentials */
         this.setServerWithCredentials(builder, dtlsConfig);
 
@@ -144,12 +148,12 @@ public class DefaultLwM2mTransportService implements LwM2MTransportService {
             builder.setCertificateChain(sslCredentials.getCertificateChain());
             dtlsConfig.setAdvancedCertificateVerifier(certificateVerifier);
             builder.setAuthorizer(authorizer);
-            dtlsConfig.setSupportedCipherSuites(RPK_OR_X509_CIPHER_SUITES);
+            dtlsConfig.setAsList(DtlsConfig.DTLS_CIPHER_SUITES, RPK_OR_X509_CIPHER_SUITES);
         } else {
             /* by default trust all */
             builder.setTrustedCertificates(new X509Certificate[0]);
             log.info("Unable to load X509 files for LWM2MServer");
-            dtlsConfig.setSupportedCipherSuites(PSK_CIPHER_SUITES);
+            dtlsConfig.setAsList(DtlsConfig.DTLS_CIPHER_SUITES, PSK_CIPHER_SUITES);
         }
     }
 

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/LwM2MNetworkConfig.java

@@ -15,27 +15,30 @@
  */
 package org.thingsboard.server.transport.lwm2m.server;
 
-import org.eclipse.californium.core.network.config.NetworkConfig;
+import org.eclipse.californium.core.config.CoapConfig;
-import org.eclipse.californium.core.network.config.NetworkConfigDefaults;
+import org.eclipse.californium.elements.config.Configuration;
 import org.springframework.util.CollectionUtils;
 import org.thingsboard.server.transport.lwm2m.config.LwM2MTransportServerConfig;
 
-import static org.eclipse.californium.core.network.config.NetworkConfigDefaults.DEFAULT_BLOCKWISE_STATUS_LIFETIME;
+import java.util.Properties;
+import java.util.concurrent.TimeUnit;
+
+import static org.eclipse.californium.core.config.CoapConfig.DEFAULT_BLOCKWISE_STATUS_LIFETIME_IN_SECONDS;
 
 public class LwM2MNetworkConfig {
 
-    public static NetworkConfig getCoapConfig(Integer serverPortNoSec, Integer serverSecurePort, LwM2MTransportServerConfig config) {
+    public static Configuration getCoapConfig(Integer serverPortNoSec, Integer serverSecurePort, LwM2MTransportServerConfig config) {
-        NetworkConfig coapConfig = new NetworkConfig();
+        Configuration coapConfig = new Configuration();
-        coapConfig.setInt(NetworkConfig.Keys.COAP_PORT, serverPortNoSec);
+        coapConfig.set(CoapConfig.COAP_PORT, serverPortNoSec);
-        coapConfig.setInt(NetworkConfig.Keys.COAP_SECURE_PORT, serverSecurePort);
+        coapConfig.set(CoapConfig.COAP_SECURE_PORT, serverSecurePort);
         /**
          Example:Property for large packet:
          #NetworkConfig config = new NetworkConfig();
-         #config.setInt(NetworkConfig.Keys.MAX_MESSAGE_SIZE,32);
+         #config.setInt(CoapConfig.MAX_MESSAGE_SIZE,32);
-         #config.setInt(NetworkConfig.Keys.PREFERRED_BLOCK_SIZE,32);
+         #config.setInt(CoapConfig.PREFERRED_BLOCK_SIZE,32);
-         #config.setInt(NetworkConfig.Keys.MAX_RESOURCE_BODY_SIZE,2048);
+         #config.setInt(CoapConfig.MAX_RESOURCE_BODY_SIZE,2048);
-         #config.setInt(NetworkConfig.Keys.MAX_RETRANSMIT,3);
+         #config.setInt(CoapConfig.MAX_RETRANSMIT,3);
-         #config.setInt(NetworkConfig.Keys.MAX_TRANSMIT_WAIT,120000);
+         #config.setInt(CoapConfig.MAX_TRANSMIT_WAIT,120000);
          */
 
         /**
@@ -46,14 +49,14 @@ public class LwM2MNetworkConfig {
          CoAP client will try to use block mode
          or adapt the block size when receiving a 4.13 Entity too large response code
          */
-        coapConfig.setBoolean(NetworkConfig.Keys.BLOCKWISE_STRICT_BLOCK2_OPTION, true);
+        coapConfig.set(CoapConfig.BLOCKWISE_STRICT_BLOCK2_OPTION, true);
         /**
          Property to indicate if the response should always include the Block2 option \
          when client request early blockwise negociation but the response can be sent on one packet.
          - value of false indicate that the server will respond without block2 option if no further blocks are required.
          - value of true indicate that the server will response with block2 option event if no further blocks are required.
          */
-        coapConfig.setBoolean(NetworkConfig.Keys.BLOCKWISE_ENTITY_TOO_LARGE_AUTO_FAILOVER, true);
+        coapConfig.set(CoapConfig.BLOCKWISE_ENTITY_TOO_LARGE_AUTO_FAILOVER, true);
         /**
          * The maximum amount of time (in milliseconds) allowed between
          * transfers of individual blocks in a blockwise transfer before the
@@ -62,7 +65,7 @@ public class LwM2MNetworkConfig {
          * The default value of this property is
          * {@link NetworkConfigDefaults#DEFAULT_BLOCKWISE_STATUS_LIFETIME} = 5 * 60 * 1000; // 5 mins [ms].
          */
-        coapConfig.setLong(NetworkConfig.Keys.BLOCKWISE_STATUS_LIFETIME, DEFAULT_BLOCKWISE_STATUS_LIFETIME);
+        coapConfig.set(CoapConfig.BLOCKWISE_STATUS_LIFETIME, DEFAULT_BLOCKWISE_STATUS_LIFETIME_IN_SECONDS, TimeUnit.SECONDS);
         /**
          !!! REQUEST_ENTITY_TOO_LARGE CODE=4.13
          The maximum size of a resource body (in bytes) that will be accepted
@@ -77,7 +80,7 @@ public class LwM2MNetworkConfig {
          The default value of this property is DEFAULT_MAX_RESOURCE_BODY_SIZE = 8192
          A value of {@code 0} turns off transparent handling of blockwise transfers altogether.
          */
-        coapConfig.setInt(NetworkConfig.Keys.MAX_RESOURCE_BODY_SIZE, 256 * 1024 * 1024);
+        coapConfig.set(CoapConfig.MAX_RESOURCE_BODY_SIZE, 256 * 1024 * 1024);
         /**
          The default DTLS response matcher.
          Supported values are STRICT, RELAXED, or PRINCIPAL.
@@ -88,13 +91,13 @@ public class LwM2MNetworkConfig {
          – true with address check, (STRICT, UDP) - if port Registration of client is changed - it is bad
          - false, without
          */
-        coapConfig.setString(NetworkConfig.Keys.RESPONSE_MATCHING, "RELAXED");
+        coapConfig.set(CoapConfig.RESPONSE_MATCHING, CoapConfig.MatcherMode.RELAXED);
         /**
          https://tools.ietf.org/html/rfc7959#section-2.9.3
          The block size (number of bytes) to use when doing a blockwise transfer. \
          This value serves as the upper limit for block size in blockwise transfers
          */
-        coapConfig.setInt(NetworkConfig.Keys.PREFERRED_BLOCK_SIZE, 1024);
+        coapConfig.set(CoapConfig.PREFERRED_BLOCK_SIZE, 1024);
         /**
          The maximum payload size (in bytes) that can be transferred in a
          single message, i.e. without requiring a blockwise transfer.
@@ -102,12 +105,14 @@ public class LwM2MNetworkConfig {
          In particular, this value cannot exceed the network's MTU if UDP is used as the transport protocol
          DEFAULT_VALUE = 1024
          */
-        coapConfig.setInt(NetworkConfig.Keys.MAX_MESSAGE_SIZE, 1024);
+        coapConfig.set(CoapConfig.MAX_MESSAGE_SIZE, 1024);
 
-        coapConfig.setInt(NetworkConfig.Keys.MAX_RETRANSMIT, 10);
+        coapConfig.set(CoapConfig.MAX_RETRANSMIT, 10);
 
         if (!CollectionUtils.isEmpty(config.getNetworkConfig())) {
-            config.getNetworkConfig().forEach(p -> coapConfig.setString(p.getKey(), p.getValue()));
+            Properties networkProps = new Properties();
+            config.getNetworkConfig().forEach(p -> networkProps.put(p.getKey(), p.getValue()));
+            coapConfig.add(networkProps);
         }
 
         return coapConfig;

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/LwM2mServerListener.java

@@ -16,7 +16,10 @@
 package org.thingsboard.server.transport.lwm2m.server;
 
 import lombok.extern.slf4j.Slf4j;
+import org.eclipse.leshan.core.observation.CompositeObservation;
 import org.eclipse.leshan.core.observation.Observation;
+import org.eclipse.leshan.core.observation.SingleObservation;
+import org.eclipse.leshan.core.response.ObserveCompositeResponse;
 import org.eclipse.leshan.core.response.ObserveResponse;
 import org.eclipse.leshan.server.observation.ObservationListener;
 import org.eclipse.leshan.server.queue.PresenceListener;
@@ -86,26 +89,34 @@ public class LwM2mServerListener {
 
         @Override
         public void cancelled(Observation observation) {
-            log.trace("Canceled Observation {}.", observation.getPath());
+            //TODO: should be able to use CompositeObservation
+            log.trace("Canceled Observation {}.", ((SingleObservation)observation).getPath());
         }
 
         @Override
-        public void onResponse(Observation observation, Registration registration, ObserveResponse response) {
+        public void onResponse(SingleObservation observation, Registration registration, ObserveResponse response) {
             if (registration != null) {
                 service.onUpdateValueAfterReadResponse(registration, convertObjectIdToVersionedId(observation.getPath().toString(), registration), response);
             }
         }
 
+        @Override
+        public void onResponse(CompositeObservation observation, Registration registration, ObserveCompositeResponse response) {
+            throw new RuntimeException("Not implemented yet!");
+        }
+
         @Override
         public void onError(Observation observation, Registration registration, Exception error) {
             if (error != null) {
-                log.debug("Unable to handle notification of [{}:{}] [{}]", observation.getRegistrationId(), observation.getPath(), error.getMessage());
+                //TODO: should be able to use CompositeObservation
+                log.debug("Unable to handle notification of [{}:{}] [{}]", observation.getRegistrationId(), ((SingleObservation)observation).getPath(), error.getMessage());
             }
         }
 
         @Override
         public void newObservation(Observation observation, Registration registration) {
-            log.trace("Successful start newObservation {}.", observation.getPath());
+            //TODO: should be able to use CompositeObservation
+            log.trace("Successful start newObservation {}.", ((SingleObservation)observation).getPath());
         }
     };
 }

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/LwM2mTransportCoapResource.java

@@ -56,7 +56,7 @@ public class LwM2mTransportCoapResource extends AbstractLwM2mTransportResource {
         if (relation == null || relation.isCanceled()) {
             return; // because request did not try to establish a relation
         }
-        if (CoAP.ResponseCode.isSuccess(response.getCode())) {
+        if (response.getCode().isSuccess()) {
 
             if (!relation.isEstablished()) {
                 relation.setEstablished();

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/client/LwM2mClient.java

@@ -39,7 +39,7 @@ import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.transport.auth.ValidateDeviceCredentialsResponse;
 import org.thingsboard.server.gen.transport.TransportProtos.SessionInfoProto;
 import org.thingsboard.server.gen.transport.TransportProtos.TsKvProto;
-import org.thingsboard.server.transport.lwm2m.config.LwM2mVersion;
+import org.thingsboard.server.transport.lwm2m.config.TbLwM2mVersion;
 
 import java.io.IOException;
 import java.io.ObjectInputStream;
@@ -423,14 +423,14 @@ public class LwM2mClient implements Serializable {
         if (registration == null) {
             return ContentFormat.DEFAULT;
         } else{
-            return LwM2mVersion.fromVersion(registration.getLwM2mVersion()).getContentFormat();
+            return TbLwM2mVersion.fromVersion(registration.getLwM2mVersion()).getContentFormat();
         }
     }
 
     static private Set<ContentFormat> clientSupportContentFormat(Registration registration) {
         Set<ContentFormat> contentFormats = new HashSet<>();
         contentFormats.add(ContentFormat.DEFAULT);
-        String code = Arrays.stream(registration.getObjectLinks()).filter(link -> link.getUrl().equals("/")).findFirst().get().getAttributes().get("ct");
+        String code = Arrays.stream(registration.getObjectLinks()).filter(link -> link.getUriReference().equals("/")).findFirst().get().getLinkParams().get("ct").getUnquoted();
         if (code != null) {
             Set<ContentFormat> codes = Stream.of(code.replaceAll("\"", "").split(" ", -1))
                     .map(String::trim)

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/client/LwM2mClientContextImpl.java

@@ -393,9 +393,9 @@ public class LwM2mClientContextImpl implements LwM2mClientContext {
     public Set<String> getSupportedIdVerInClient(LwM2mClient client) {
         Set<String> clientObjects = ConcurrentHashMap.newKeySet();
         Arrays.stream(client.getRegistration().getObjectLinks()).forEach(link -> {
-            LwM2mPath pathIds = new LwM2mPath(link.getUrl());
+            LwM2mPath pathIds = new LwM2mPath(link.getUriReference());
             if (!pathIds.isRoot()) {
-                clientObjects.add(convertObjectIdToVersionedId(link.getUrl(), client.getRegistration()));
+                clientObjects.add(convertObjectIdToVersionedId(link.getUriReference(), client.getRegistration()));
             }
         });
         return (clientObjects.size() > 0) ? clientObjects : null;

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/downlink/DefaultLwM2mDownlinkMsgHandler.java

@@ -17,7 +17,7 @@ package org.thingsboard.server.transport.lwm2m.server.downlink;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.eclipse.leshan.core.Link;
+import org.eclipse.leshan.core.link.Link;
 import org.eclipse.leshan.core.LwM2m;
 import org.eclipse.leshan.core.attributes.Attribute;
 import org.eclipse.leshan.core.attributes.AttributeSet;
@@ -29,6 +29,7 @@ import org.eclipse.leshan.core.node.LwM2mPath;
 import org.eclipse.leshan.core.node.LwM2mResource;
 import org.eclipse.leshan.core.node.ObjectLink;
 import org.eclipse.leshan.core.observation.Observation;
+import org.eclipse.leshan.core.observation.SingleObservation;
 import org.eclipse.leshan.core.request.CompositeDownlinkRequest;
 import org.eclipse.leshan.core.request.ContentFormat;
 import org.eclipse.leshan.core.request.CreateRequest;
@@ -160,7 +161,8 @@ public class DefaultLwM2mDownlinkMsgHandler extends LwM2MExecutorAwareService im
             validateVersionedId(client, request);
             LwM2mPath resultIds = new LwM2mPath(request.getObjectId());
             Set<Observation> observations = context.getServer().getObservationService().getObservations(client.getRegistration());
-            if (observations.stream().noneMatch(observation -> observation.getPath().equals(resultIds))) {
+            //TODO: should be able to use CompositeObservation
+            if (observations.stream().noneMatch(observation -> ((SingleObservation)observation).getPath().equals(resultIds))) {
                 ObserveRequest downlink;
                 ContentFormat contentFormat = getReadRequestContentFormat(client, request, modelProvider);
                 if (resultIds.isResource()) {
@@ -183,7 +185,8 @@ public class DefaultLwM2mDownlinkMsgHandler extends LwM2MExecutorAwareService im
     @Override
     public void sendObserveAllRequest(LwM2mClient client, TbLwM2MObserveAllRequest request, DownlinkRequestCallback<TbLwM2MObserveAllRequest, Set<String>> callback) {
         Set<Observation> observations = context.getServer().getObservationService().getObservations(client.getRegistration());
-        Set<String> paths = observations.stream().map(observation -> observation.getPath().toString()).collect(Collectors.toUnmodifiableSet());
+        //TODO: should be able to use CompositeObservation
+        Set<String> paths = observations.stream().map(observation -> ((SingleObservation)observation).getPath().toString()).collect(Collectors.toUnmodifiableSet());
         callback.onSuccess(request, paths);
     }
 
@@ -620,9 +623,9 @@ public class DefaultLwM2mDownlinkMsgHandler extends LwM2MExecutorAwareService im
     }
 
     private static ContentFormat getContentFormatForComplex(LwM2mClient client) {
-        if (LwM2m.Version.V1_0.equals(client.getRegistration().getLwM2mVersion())) {
+        if (LwM2m.LwM2mVersion.V1_0.equals(client.getRegistration().getLwM2mVersion())) {
             return ContentFormat.TLV;
-        } else if (LwM2m.Version.V1_1.equals(client.getRegistration().getLwM2mVersion())) {
+        } else if (LwM2m.LwM2mVersion.V1_1.equals(client.getRegistration().getLwM2mVersion())) {
             ContentFormat result = findFirst(client.getClientSupportContentFormats(), null, ContentFormat.SENML_CBOR, ContentFormat.SENML_JSON, ContentFormat.TLV, ContentFormat.JSON);
             if (result != null) {
                 return result;

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/downlink/LwM2mDownlinkMsgHandler.java

@@ -15,7 +15,7 @@
  */
 package org.thingsboard.server.transport.lwm2m.server.downlink;
 
-import org.eclipse.leshan.core.Link;
+import org.eclipse.leshan.core.link.Link;
 import org.eclipse.leshan.core.request.ContentFormat;
 import org.eclipse.leshan.core.request.CreateRequest;
 import org.eclipse.leshan.core.request.DeleteRequest;

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/rpc/RpcDiscoverCallback.java

@@ -15,7 +15,8 @@
  */
 package org.thingsboard.server.transport.lwm2m.server.rpc;
 
-import org.eclipse.leshan.core.Link;
+import org.eclipse.leshan.core.link.DefaultLinkSerializer;
+import org.eclipse.leshan.core.link.LinkSerializer;
 import org.eclipse.leshan.core.request.DiscoverRequest;
 import org.eclipse.leshan.core.response.DiscoverResponse;
 import org.thingsboard.server.common.transport.TransportService;
@@ -27,12 +28,14 @@ import java.util.Optional;
 
 public class RpcDiscoverCallback extends RpcLwM2MDownlinkCallback<DiscoverRequest, DiscoverResponse> {
 
+    private final LinkSerializer serializer = new DefaultLinkSerializer();
+
     public RpcDiscoverCallback(TransportService transportService, LwM2mClient client, TransportProtos.ToDeviceRpcRequestMsg requestMsg, DownlinkRequestCallback<DiscoverRequest, DiscoverResponse> callback) {
         super(transportService, client, requestMsg, callback);
     }
 
     protected Optional<String> serializeSuccessfulResponse(DiscoverResponse response) {
-        return Optional.of(Link.serialize(response.getObjectLinks()));
+        return Optional.of(serializer.serialize(response.getObjectLinks()));
     }
 
 }

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/store/TbLwM2mRedisRegistrationStore.java

@@ -22,10 +22,11 @@ import org.eclipse.leshan.core.Destroyable;
 import org.eclipse.leshan.core.Startable;
 import org.eclipse.leshan.core.Stoppable;
 import org.eclipse.leshan.core.observation.Observation;
+import org.eclipse.leshan.core.observation.SingleObservation;
 import org.eclipse.leshan.core.request.Identity;
 import org.eclipse.leshan.core.util.NamedThreadFactory;
 import org.eclipse.leshan.core.util.Validate;
-import org.eclipse.leshan.server.californium.observation.ObserveUtil;
+import org.eclipse.leshan.core.californium.ObserveUtil;
 import org.eclipse.leshan.server.californium.registration.CaliforniumRegistrationStore;
 import org.eclipse.leshan.server.redis.RedisRegistrationStore;
 import org.eclipse.leshan.server.redis.serialization.IdentitySerDes;
@@ -455,7 +456,8 @@ public class TbLwM2mRedisRegistrationStore implements CaliforniumRegistrationSto
 
                 // cancel existing observations for the same path and registration id.
                 for (Observation obs : getObservations(connection, registrationId)) {
-                    if (observation.getPath().equals(obs.getPath())
+                    //TODO: should be able to use CompositeObservation
+                    if (((SingleObservation)observation).getPath().equals(((SingleObservation)obs).getPath())
                             && !Arrays.equals(observation.getId(), obs.getId())) {
                         removed.add(obs);
                         unsafeRemoveObservation(connection, registrationId, obs.getId());

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/utils/LwM2MTransportUtil.java

@@ -30,7 +30,6 @@ import org.eclipse.leshan.core.node.LwM2mMultipleResource;
 import org.eclipse.leshan.core.node.LwM2mPath;
 import org.eclipse.leshan.core.node.LwM2mResource;
 import org.eclipse.leshan.core.node.LwM2mSingleResource;
-import org.eclipse.leshan.core.node.ObjectLink;
 import org.eclipse.leshan.core.node.codec.CodecException;
 import org.eclipse.leshan.core.request.SimpleDownlinkRequest;
 import org.eclipse.leshan.core.request.WriteAttributesRequest;
@@ -44,7 +43,7 @@ import org.thingsboard.server.common.data.device.profile.DeviceProfileTransportC
 import org.thingsboard.server.common.data.device.profile.Lwm2mDeviceProfileTransportConfiguration;
 import org.thingsboard.server.common.data.ota.OtaPackageKey;
 import org.thingsboard.server.common.transport.util.JsonUtils;
-import org.thingsboard.server.transport.lwm2m.config.LwM2mVersion;
+import org.thingsboard.server.transport.lwm2m.config.TbLwM2mVersion;
 import org.thingsboard.server.transport.lwm2m.server.LwM2mOtaConvert;
 import org.thingsboard.server.transport.lwm2m.server.client.LwM2mClient;
 import org.thingsboard.server.transport.lwm2m.server.client.ResourceValue;
@@ -236,7 +235,7 @@ public class LwM2MTransportUtil {
 
     public static String convertObjectIdToVersionedId(String path, Registration registration) {
         String ver = registration.getSupportedObject().get(new LwM2mPath(path).getObjectId());
-        ver = ver != null ? ver : LwM2mVersion.VERSION_1_0.getVersion().toString();
+        ver = ver != null ? ver : TbLwM2mVersion.VERSION_1_0.getVersion().toString();
         try {
             String[] keyArray = path.split(LWM2M_SEPARATOR_PATH);
             if (keyArray.length > 1) {

pom.xml

@@ -68,8 +68,8 @@
         <jackson.version>2.12.1</jackson.version>
         <fasterxml-classmate.version>1.3.4</fasterxml-classmate.version>
         <json-schema-validator.version>2.2.6</json-schema-validator.version>
-        <californium.version>2.6.1</californium.version>
+        <californium.version>3.0.0</californium.version>
-        <leshan.version>2.0.0-M4</leshan.version>
+        <leshan.version>2.0.0-M5</leshan.version>
         <gson.version>2.6.2</gson.version>
         <freemarker.version>2.3.30</freemarker.version>
         <mail.version>1.6.2</mail.version>