I am facing the following error when refreshing my projects. Tested against 75 projects open simultaneously (JBoss AS7)
An internal error occurred during: "JBoss Tools Model Update".
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
at java.util.HashMap$KeyIterator.next(HashMap.java:828)
at java.util.AbstractCollection.addAll(AbstractCollection.java:305)
at java.util.HashSet.<init>(HashSet.java:100)
at org.jboss.tools.common.model.filesystems.impl.LibraryNames.getPaths(Libs.java:294)
at org.jboss.tools.common.model.filesystems.impl.Libs.updateFileSystems(Libs.java:133)
at org.jboss.tools.common.model.filesystems.impl.Libs.update(Libs.java:92)
at org.jboss.tools.common.model.project.ext.AbstractClassPathMonitor.update(AbstractClassPathMonitor.java:63)
at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor$1.run(ClassPathMonitor.java:186)
at org.jboss.tools.common.model.XJob.runInWorkspace(XJob.java:178)
at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)