[jboss-jira] [JBoss JIRA] (DROOLS-144) LinkageError exception during multi-threaded execution

Davide Sottara created DROOLS-144: ------------------------------------- Summary: LinkageError exception during multi-threaded execution Key: DROOLS-144 URL: https://issues.jboss.org/browse/DROOLS-144 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 6.0.0.Beta2, 5.5.0.Final Environment: Linux Ubuntu 12.10, OpenJDK 1.7 Reporter: Davide Sottara Assignee: Mark Proctor Priority: Blocker The exception is thrown in org.drools.rule.JavaRuntimeDialectData, when the CompositeClassLoader tries to define the class implementing a rule consequence. The method fastFindClass, which does the lazy initialization, is not thread-safe. It is possible for two threads to call findLoadedClass(..), get null and thus start the definition process which eventually results in the exception. The situation is indeed very rare -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira