TenantId factory method fromUUID added to reduce optimize TenantId instances count in heap memory. Factory as default @JsonCreator

common/data/src/main/java/org/thingsboard/server/common/data/id/TenantId.java

@@ -15,23 +15,31 @@
  */
 package org.thingsboard.server.common.data.id;
 
-import java.util.UUID;
-
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import io.swagger.annotations.ApiModelProperty;
+import org.springframework.util.ConcurrentReferenceHashMap;
+import org.springframework.util.ConcurrentReferenceHashMap.ReferenceType;
 import org.thingsboard.server.common.data.EntityType;
 
+import java.util.UUID;
+
 public final class TenantId extends UUIDBased implements EntityId {
 
     @JsonIgnore
     public static final TenantId SYS_TENANT_ID = new TenantId(EntityId.NULL_UUID);
 
+    static final ConcurrentReferenceHashMap<UUID, TenantId> tenants = new ConcurrentReferenceHashMap<>(16, ReferenceType.SOFT);
+
     private static final long serialVersionUID = 1L;
 
     @JsonCreator
-    public TenantId(@JsonProperty("id") UUID id) {
+    public static TenantId fromUUID(@JsonProperty("id") UUID id) {
+        return tenants.computeIfAbsent(id, TenantId::new);
+    }
+
+    public TenantId(UUID id) {
         super(id);
     }