[jbosstools-issues] [JBoss JIRA] (JBIDE-15275) ConcurrentModificationException in KB project

ConcurrentModificationException in KB project --------------------------------------------- Key: JBIDE-15275 URL: https://issues.jboss.org/browse/JBIDE-15275 Project: Tools (JBoss Tools) Issue Type: Bug Components: common/jst/core Affects Versions: 4.2.0.Alpha1 Reporter: Alexey Kazakov Assignee: Viacheslav Kabanovich Fix For: 4.2.0.Alpha1 I don't know how to reproduce this issue. I just saw it in my Eclipse log: {code} org.jboss.tools.common.validation.JBTValidationException at org.jboss.tools.common.validation.ValidatorManager.validateInJob(ValidatorManager.java:101) at org.eclipse.wst.validation.internal.operations.ValidatorJob.run(ValidatorJob.java:78) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53) Caused by: java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819) at java.util.ArrayList$Itr.next(ArrayList.java:791) at org.jboss.tools.jst.web.kb.internal.KbProject.getKBBuilderRequiredNatureDescriptions(KbProject.java:1001) at org.jboss.tools.jst.web.kb.internal.KbProject.checkKBBuilderInstalled(KbProject.java:1027) at org.jboss.tools.jsf.web.validation.JSFELValidationDelegate.shouldValidate(JSFELValidationDelegate.java:36) at org.jboss.tools.jst.web.kb.internal.validation.ELValidator.shouldValidate(ELValidator.java:646) at org.jboss.tools.jst.web.kb.internal.validation.ELValidator.shouldValidate(ELValidator.java:633) at org.jboss.tools.common.validation.ValidationContext.shouldValidate(ValidationContext.java:137) at org.jboss.tools.common.validation.ValidationContext.init(ValidationContext.java:126) at org.jboss.tools.common.validation.ValidationContext.<init>(ValidationContext.java:43) at org.jboss.tools.common.validation.ContextValidationHelper.getValidationContextManager(ContextValidationHelper.java:176) at org.jboss.tools.common.validation.ContextValidationHelper.getValidationContextManager(ContextValidationHelper.java:168) at org.jboss.tools.common.validation.ValidatorManager.validateInJob(ValidatorManager.java:65) ... 2 more {code}