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 Jive Software Open Source by Gaston Dombiak, 1 year ago
This exception has no message.
via JIRA by Gaston Dombiak, 1 year ago
This exception has no message.
via JIRA by Gaston Dombiak, 1 year ago
This exception has no message.
via Oracle Community by 805059, 2 years ago
java.util.ConcurrentModificationException at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:617) at java.util.LinkedList$ListItr.remove(LinkedList.java:585) at org.jivesoftware.messenger.muc.HistoryStrategy.addMessage(HistoryStrategy.java:175) at org.jivesoftware.messenger.muc.MUCRoomHistory.addMessage(MUCRoomHistory.java:105) at org.jivesoftware.messenger.muc.spi.MUCRoomImpl.send(MUCRoomImpl.java:767) at org.jivesoftware.messenger.muc.spi.MUCRoomImpl.sendPublicMessage(MUCRoomImpl.java:750) at org.jivesoftware.messenger.muc.spi.MUCUserImpl.process(MUCUserImpl.java:214) at org.jivesoftware.messenger.muc.spi.MUCUserImpl.process(MUCUserImpl.java:120) at org.jivesoftware.messenger.muc.spi.MultiUserChatServerImpl.processPacket(MultiUserChatServerImpl.java:200) at org.jivesoftware.messenger.muc.spi.MultiUserChatServerImpl.process(MultiUserChatServerImpl.java:184) at org.jivesoftware.messenger.MessageRouter.route(MessageRouter.java:80) at org.jivesoftware.messenger.PacketRouter.route(PacketRouter.java:69) at org.jivesoftware.messenger.net.SocketReader.processMessage(SocketReader.java:416) at org.jivesoftware.messenger.net.ClientSocketReader.processMessage(ClientSocketReader.java:63) at org.jivesoftware.messenger.net.SocketReader.readStream(SocketReader.java:190) at org.jivesoftware.messenger.net.SocketReader.run(SocketReader.java:115) at java.lang.Thread.run(Thread.java:595)