[jbosstools-issues] [JBoss JIRA] (JBIDE-11185) ConcurrentModificationException in SeamRuntimeListFieldEditor when user deletes Seam Runtime (probably during project building)

[ https://issues.jboss.org/browse/JBIDE-11185?page=com.atlassian.jira.plugi... ] Daniel Azarov commented on JBIDE-11185: --------------------------------------- I reproduced it again. Test case Execute: 1. Created 5 seam projects with different Seam Runtimes, for instance, I have: - jboss-seam-1.2.1.GA - jboss-seam-2.1.1.GA - jboss-seam-2.2.1.CR1 - jboss-seam-2.3.0.ALPHA-distribution 2. Close Studio 3. Start Studio 4. Just after starting Open Window->Preferences then select JBoss Tools->Web->Seam 5. Delete all Seam Runtimes one by one FAIL: {code} java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:782) at java.util.ArrayList$Itr.next(ArrayList.java:754) at org.jboss.tools.seam.ui.widget.editor.SeamRuntimeListFieldEditor.performApply(SeamRuntimeListFieldEditor.java:181) at org.jboss.tools.seam.ui.widget.editor.SeamRuntimeListFieldEditor$RemoveAction.run(SeamRuntimeListFieldEditor.java:1174) at org.jboss.tools.seam.ui.widget.editor.SeamRuntimeListFieldEditor$ActionButton$1.widgetSelected(SeamRuntimeListFieldEditor.java:949) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209) at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) at org.eclipse.jface.window.Window.open(Window.java:801) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:215) at org.eclipse.ui.internal.handlers.ShowPreferencePageHandler.execute(ShowPreferencePageHandler.java:54) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241) at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:157) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209) at org.eclipse.ui.internal.dialogs.EventLoopProgressMonitor.runEventLoop(EventLoopProgressMonitor.java:123) at org.eclipse.ui.internal.dialogs.EventLoopProgressMonitor.isCanceled(EventLoopProgressMonitor.java:97) at org.eclipse.core.internal.jobs.ThreadJob.isCanceled(ThreadJob.java:146) at org.eclipse.core.internal.jobs.ThreadJob.waitForRun(ThreadJob.java:235) at org.eclipse.core.internal.jobs.ThreadJob.joinRun(ThreadJob.java:199) at org.eclipse.core.internal.jobs.ImplicitJobs.begin(ImplicitJobs.java:92) at org.eclipse.core.internal.jobs.JobManager.beginRule(JobManager.java:286) at org.eclipse.core.internal.resources.WorkManager.checkIn(WorkManager.java:118) at org.eclipse.core.internal.resources.Workspace.prepareOperation(Workspace.java:2282) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2339) at org.eclipse.jst.jee.model.internal.common.AbstractMergedModelProvider.loadModel(AbstractMergedModelProvider.java:249) at org.eclipse.jst.jee.model.internal.common.AbstractMergedModelProvider.getMergedModel(AbstractMergedModelProvider.java:219) at org.eclipse.jst.jee.model.internal.common.AbstractMergedModelProvider.getModelObject(AbstractMergedModelProvider.java:139) at org.eclipse.jst.jee.ui.internal.navigator.Web25ContentProvider.getNewContentProviderInstance(Web25ContentProvider.java:69) at org.eclipse.jst.jee.ui.internal.navigator.JEE5ContentProvider.getCachedContentProvider(JEE5ContentProvider.java:92) at org.eclipse.jst.jee.ui.internal.navigator.Web25ContentProvider.getChildren(Web25ContentProvider.java:35) at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:96) at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:275) at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:94) at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider$1.run(NavigatorContentServiceContentProvider.java:152) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.internalGetChildren(NavigatorContentServiceContentProvider.java:139) at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.getChildren(NavigatorContentServiceContentProvider.java:125) at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1352) at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:391) at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:917) at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:605) at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:803) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:782) at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:644) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:753) at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpand(AbstractTreeViewer.java:1631) at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpand(AbstractTreeViewer.java:1628) at org.eclipse.jface.viewers.AbstractTreeViewer.setSelectionToWidget(AbstractTreeViewer.java:2507) at org.eclipse.ui.navigator.CommonViewer.setSelectionToWidget(CommonViewer.java:446) at org.eclipse.jface.viewers.StructuredViewer.setSelectionToWidget(StructuredViewer.java:1767) at org.eclipse.jface.viewers.AbstractTreeViewer.setSelectionToWidget(AbstractTreeViewer.java:2947) at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1723) at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1139) at org.eclipse.ui.navigator.CommonViewer.setSelection(CommonViewer.java:377) at org.eclipse.ui.navigator.CommonNavigator.selectReveal(CommonNavigator.java:383) at org.eclipse.ui.internal.navigator.actions.LinkEditorAction$4.run(LinkEditorAction.java:108) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.navigator.actions.LinkEditorAction$3.runInUIThread(LinkEditorAction.java:96) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3563) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) at org.eclipse.equinox.launcher.Main.main(Main.java:1386) {code} -- This message 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