java.util.ConcurrentModificationException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by tsegismont
, 2 years ago
This exception has no message.
via Google Groups by Lyle Karstensen, 1 year ago
at java.util.HashMap$HashIterator.nextNode(
at java.util.HashMap$
at io.moquette.spi.persistence.MapDBSessionsStore.max(
at io.moquette.spi.persistence.MapDBSessionsStore.nextPacketID(
at io.moquette.spi.ClientSession.nextPacketId(
at io.moquette.spi.impl.ProtocolProcessor.route2Subscribers(
at io.moquette.spi.impl.ProtocolProcessor.processPublish(

Users with the same issue

Once, 1 month ago
Once, 2 months ago
Once, 4 months ago
3 times, 1 year ago
Samebug visitor profile picture
Unknown user
Once, 4 months ago
25 more bugmates

Know the solutions? Share your knowledge to help other developers to debug faster.