cleanup(application): parameterize Set and Predicate fields in lwm2m rpc integration test base

application/src/test/java/org/thingsboard/server/transport/lwm2m/rpc/AbstractRpcLwM2MIntegrationTest.java

@@ -78,16 +78,16 @@ public abstract class AbstractRpcLwM2MIntegrationTest extends AbstractLwM2MInteg
 
     protected final LinkParser linkParser = new DefaultLwM2mLinkParser();
     protected String CONFIG_PROFILE_WITH_PARAMS_RPC;
-    public Set expectedObjects;
-    public Set expectedObjectIdVers;
-    public Set expectedInstances;
-    public Set expectedObjectIdVerInstances;
+    public Set<String> expectedObjects;
+    public Set<String> expectedObjectIdVers;
+    public Set<String> expectedInstances;
+    public Set<String> expectedObjectIdVerInstances;
 
     protected String objectInstanceIdVer_1;
     protected String objectIdVer_0;
     protected String objectIdVer_1;
     protected String objectIdVer_2;
-    private static final Predicate PREDICATE_3 = path -> (!((String) path).startsWith("/" + TEMPERATURE_SENSOR) && ((String) path).startsWith("/" + DEVICE));
+    private static final Predicate<String> PREDICATE_3 = path -> (!((String) path).startsWith("/" + TEMPERATURE_SENSOR) && ((String) path).startsWith("/" + DEVICE));
     protected String objectIdVer_3;
     protected String objectInstanceIdVer_3;
     protected String objectInstanceIdVer_5;