Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via SpringSource Issue Tracker by Martin Lippert, 1 year ago
via SpringSource Issue Tracker by Martin Lippert (c), 1 year ago
via Eclipse Bugzilla by steffen.pingel, 1 year ago
via Eclipse Bugzilla by sam.davis, 1 year ago
via Eclipse Bugzilla by tzhang, 1 year ago
org.eclipse.core.runtime.AssertionFailedException: null argument:	at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:85)	at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:73)	at org.eclipse.jface.viewers.StructuredViewer.assertElementsNotNull(StructuredViewer.java:599)	at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:1011)	at org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:703)	at org.eclipse.jface.viewers.AbstractTableViewer.getRawChildren(AbstractTableViewer.java:1087)	at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:917)	at org.eclipse.jface.viewers.StructuredViewer.getSortedChildren(StructuredViewer.java:1067)	at org.eclipse.jface.viewers.AbstractTableViewer.internalRefreshAll(AbstractTableViewer.java:701)	at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:649)	at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:636)	at org.eclipse.jface.viewers.AbstractTableViewer$2.run(AbstractTableViewer.java:592)	at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1443)	at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1404)	at org.eclipse.jface.viewers.AbstractTableViewer.inputChanged(AbstractTableViewer.java:590)	at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:280)	at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1690)	at org.springframework.ide.eclipse.beans.ui.properties.ConfigFilesTab.createControl(ConfigFilesTab.java:239)	at org.springframework.ide.eclipse.beans.ui.properties.ProjectPropertyPage.createContents(ProjectPropertyPage.java:109)	at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:232)	at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1502)	at org.eclipse.jface.preference.PreferenceDialog$14.run(PreferenceDialog.java:1259)	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)	at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1253)	at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:676)	at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:709)	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)	at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:705)	at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:888)	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)	at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:886)	at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1226)	at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1251)	at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:262)	at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:256)	at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:433)	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:3946)	at org.eclipse.swt.widgets.Display.observerProc(Display.java:3536)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)	at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Display.java:4875)	at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5241)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)	at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:221)	at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1093)	at org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:2052)	at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1085)	at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2538)	at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2007)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5495)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)	at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:221)	at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2102)	at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2299)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5559)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)	at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5004)	at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5153)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3618)	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)	at org.eclipse.jface.window.Window.open(Window.java:801)	at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:158)	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)	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.Display.sendEvent(Display.java:4136)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1458)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1481)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1466)	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1271)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3982)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3621)	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)	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:353)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)	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:601)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)	at org.eclipse.equinox.launcher.Main.main(Main.java:1414)