[jboss-jira] [JBoss JIRA] Commented: (JGRP-1286) ConcurrentModificationException encountered when starting JGroups 2.12RC1 when diagnostics is enabled

ConcurrentModificationException encountered when starting JGroups 2.12RC1 when diagnostics is enabled ----------------------------------------------------------------------------------------------------- Key: JGRP-1286 URL: https://issues.jboss.org/browse/JGRP-1286 Project: JGroups Issue Type: Bug Affects Versions: 2.12 Reporter: William Burns Assignee: Bela Ban Fix For: 2.12 I saw this error once when starting up my server using the default TCP.xml file. I have not been able to reproduce it more than once. I just wanted to submit this so that the handlers object can be properly protected via synchronization or java.util.concurrent related facility. 48 E 15:55:19,696 (TCP ) failure handling diagnostics request java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(Unknown Source) at java.util.HashMap$KeyIterator.next(Unknown Source) at org.jgroups.protocols.TP$DiagnosticsHandler.handleDiagnosticProbe(TP.java:2157) at org.jgroups.protocols.TP$DiagnosticsHandler.run(TP.java:2130) at java.lang.Thread.run(Unknown Source)