All threads share the same MDC FastCopyHashMap ---------------------------------------------- Key: LOGMGR-35 URL: https://issues.jboss.org/browse/LOGMGR-35 Project: JBoss Log Manager Issue Type: Bug Security Level: Public (Everyone can see) Components: core Affects Versions: 1.2.0.GA Reporter: Stephan Classen Assignee: David Lloyd Priority: Critical All threads share the very same instance of the FastCopyHashMap. This causes the use of a MDC command (put/remove/etc) to effect ALL running threads. The problem lies in the class org.jboss.logmanager.MDC The static inner class Holder has the following method: protected FastCopyHashMap<String, String> childValue(final Map<String, String> parentValue) { ... } The signature of this method is wrong. Since Holder extends InheritableThreadLocal<FastCopyHashMap<String, String>> the correct signature would be: protected FastCopyHashMap<String, String> childValue(final FastCopyHashMap<String, String> parentValue) { ... } This can easily be tested by adding the @Override annotation to the method. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira