ConcurrentModificationException when validating CDI project ----------------------------------------------------------- Key: JBIDE-18531 URL: https://issues.jboss.org/browse/JBIDE-18531 Project: Tools (JBoss Tools) Issue Type: Bug Components: cdi Affects Versions: 4.2.0.CR1 Reporter: Victor Rubezhny Assignee: Viacheslav Kabanovich Fix For: 4.2.1.Final, 4.3.0.Alpha1 The following exception appeared in Error Log after JBT was just started: {code} !ENTRY org.jboss.tools.common 4 0 2014-10-07 23:32:27.204 !MESSAGE !STACK 0 org.jboss.tools.common.validation.JBTValidationException at org.jboss.tools.common.validation.ValidatorManager.validateAll(ValidatorManager.java:143) at org.jboss.tools.common.validation.ValidatorManager.validateInJob(ValidatorManager.java:84) at org.eclipse.wst.validation.internal.operations.ValidatorJob.run(ValidatorJob.java:78) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) Caused by: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:926) at java.util.HashMap$EntryIterator.next(HashMap.java:966) at java.util.HashMap$EntryIterator.next(HashMap.java:964) at java.util.HashMap.putAll(HashMap.java:646) at org.jboss.tools.cdi.internal.core.impl.definition.DefinitionContext.getAllDependencies(DefinitionContext.java:613) at org.jboss.tools.cdi.internal.core.validation.CDICoreValidator$CDIValidationContext.<init>(CDICoreValidator.java:166) at org.jboss.tools.cdi.internal.core.validation.CDICoreValidator.getCDIContext(CDICoreValidator.java:211) at org.jboss.tools.cdi.internal.core.validation.CDICoreValidator.validateResource(CDICoreValidator.java:586) at org.jboss.tools.cdi.internal.core.validation.CDICoreValidator.validateAll(CDICoreValidator.java:522) at org.jboss.tools.common.validation.ValidatorManager.validateAll(ValidatorManager.java:138) ... 3 more {code}