Fix: use time-based null UUID for public userId.

application/src/main/java/org/thingsboard/server/service/security/auth/jwt/RefreshTokenAuthenticationProvider.java

@@ -25,6 +25,7 @@ import org.springframework.util.Assert;
 import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.User;
 import org.thingsboard.server.common.data.id.CustomerId;
+import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.UUIDBased;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.security.Authority;
@@ -108,7 +109,7 @@ public class RefreshTokenAuthenticationProvider implements AuthenticationProvide
             throw new BadCredentialsException("Refresh token is not valid");
         }
 
-        User user = new User(new UserId(UUIDBased.EMPTY));
+        User user = new User(new UserId(EntityId.NULL_UUID));
         user.setTenantId(publicCustomer.getTenantId());
         user.setCustomerId(publicCustomer.getId());
         user.setEmail(publicId);

application/src/main/java/org/thingsboard/server/service/security/auth/rest/RestAuthenticationProvider.java

@@ -26,6 +26,7 @@ import org.springframework.util.Assert;
 import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.User;
 import org.thingsboard.server.common.data.id.CustomerId;
+import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.UUIDBased;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.security.Authority;
@@ -111,7 +112,7 @@ public class RestAuthenticationProvider implements AuthenticationProvider {
         if (!publicCustomer.isPublic()) {
             throw new BadCredentialsException("Authentication Failed. Public Id is not valid.");
         }
-        User user = new User(new UserId(UUIDBased.EMPTY));
+        User user = new User(new UserId(EntityId.NULL_UUID));
         user.setTenantId(publicCustomer.getTenantId());
         user.setCustomerId(publicCustomer.getId());
         user.setEmail(publicId);

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

@@ -20,8 +20,6 @@ import java.util.UUID;
 
 public abstract class UUIDBased implements Serializable {
 
-    public static final UUID EMPTY = new UUID(0L, 0L);
-
     private static final long serialVersionUID = 1L;
 
     private final UUID id;