[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-8205) "Unhandled event loop exception" after Refresh after second try to open Mapping Diagram with no elements in configuration

[Jiri Peterka (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-8205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12580130#comment-12580130 ] 

Jiri Peterka commented on JBIDE-8205:
-------------------------------------

Verified in JBDS 4.0.0.CR2, H148, Linux 64

> "Unhandled event loop exception" after Refresh after second try to open Mapping Diagram with no elements in configuration
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: JBIDE-8205
>                 URL: https://issues.jboss.org/browse/JBIDE-8205
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: Hibernate
>    Affects Versions: 3.2.0.CR1
>            Reporter: Vitali Yemialyanchyk
>            Assignee: Vitali Yemialyanchyk
>             Fix For: 3.2.0.CR2 (tentative)
>
>         Attachments: JBIDE-8205_20110121.txt, screenshot-1.jpg
>
>
> 1) create 2 console configs, first should has configuration items other without items;
> 2) open mapping diagram for first press Refresh;
> 3) open mapping diagram for second press Refresh;
> 4) close both mapping diagrams;
> 5) open mapping diagram for second CC, press Refresh -> get exception:
> (when exception arise constantly after Refresh)
> java.lang.IllegalArgumentException: Argument cannot be null
> at org.eclipse.swt.SWT.error(SWT.java:4064)
> at org.eclipse.swt.SWT.error(SWT.java:3998)
> at org.eclipse.swt.SWT.error(SWT.java:3969)
> at org.eclipse.swt.widgets.TreeItem.checkNull(TreeItem.java:207)
> at org.eclipse.swt.widgets.TreeItem.<init>(TreeItem.java:197)
> at org.eclipse.gef.editparts.AbstractTreeEditPart.addChildVisual(AbstractTreeEditPart.java:75)
> at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:210)
> at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:771)
> at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:718)
> at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:252)
> at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:211)
> at org.eclipse.gef.editparts.RootTreeEditPart.setContents(RootTreeEditPart.java:140)
> at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:617)
> at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:626)
> at org.jboss.tools.hibernate.ui.diagram.editors.DiagramContentOutlinePage.setContents(DiagramContentOutlinePage.java:298)
> at org.jboss.tools.hibernate.ui.diagram.editors.actions.RefreshAction.run(RefreshAction.java:42)
> at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
> at org.eclipse.ui.actions.RetargetAction.runWithEvent(RetargetAction.java:230)
> 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$6.handleEvent(ActionContributionItem.java:452)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
> at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
> at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
> at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
> at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
> at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
> 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:369)
> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1407)

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