Could not initialize class sun.awt.X11.XToolkit

When I open my xml file in graphical view it can't open. I am using Ubuntu OS and getting following warning in eclipse indigo.

Could not initialize class sun.awt.X11.XToolkit
Exception details are logged in Window > Show View > Error Log

While my Error Log display follwing.

 Message :- selectimage.xml: Could not initialize class sun.awt.X11.XToolkit Exception Stack Trace : java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:186) at java.awt.Toolkit$2.run(Toolkit.java:849) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:841) at android.graphics.Paint_Delegate.updateFontObject(Paint_Delegate.java:1062) at android.graphics.Paint_Delegate.reset(Paint_Delegate.java:1039) at android.graphics.Paint_Delegate.<init>(Paint_Delegate.java:991) at android.graphics.Paint_Delegate.native_init(Paint_Delegate.java:614) at android.graphics.Paint.native_init(Paint.java) at android.graphics.Paint.<init>(Paint.java:194) at android.graphics.Paint.<init>(Paint.java:184) at android.view.ViewGroup.<init>(ViewGroup.java:277) at android.widget.LinearLayout.<init>(LinearLayout.java:114) at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:227) at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:318) at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:325) at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderService.createRenderSession(RenderService.java:372) at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.renderWithBridge(GraphicalEditorPart.java:1361) at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.recomputeLayout(GraphicalEditorPart.java:1115) at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.activated(GraphicalEditorPart.java:941) at com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditorDelegate.delegatePageChange(LayoutEditorDelegate.java:450) at com.android.ide.eclipse.adt.internal.editors.common.CommonXmlEditor.pageChange(CommonXmlEditor.java:358) at org.eclipse.ui.part.MultiPageEditorPart$2.widgetSelected(MultiPageEditorPart.java:290) 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.Widget.sendEvent(Widget.java:1282) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1061) at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2746) at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1433) at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:257) 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.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: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)

How to solve this ??

1 Answer

A little late but in the past I've corrected this type of errors ClassNoDefFound of X11 package telling Java not to use X-Server:

export JAVA_OPTS="$JAVA_OPTS -Djava.awt.headless=true"