I am using the gwt-dnd and gwt-diagrams. My web application is running
well even I got the error message below.
Can anyone explain to me why I got this error??
[ERROR] Unable to load module entry point class
com.testing.customwidget.client.Customwidget (see associated exception
for details)
java.lang.IllegalStateException: Should only call onAttach when the
widget is detached from the browser's document
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:246)
at
pl.balon.gwt.diagrams.client.connection.pointwidget.MoveablePointWidgetImpl.onAttach
(MoveablePointWidgetImpl.java:29)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at
com.testing.customwidget.client.AbstractConnectionsExample.doAttachChildren
(AbstractConnectionsExample.java:165)
at
com.testing.customwidget.client.AbstractConnectionsExample.initializeIfNecessary
(AbstractConnectionsExample.java:153)
at com.testing.customwidget.client.AbstractConnectionsExample.update
(AbstractConnectionsExample.java:140)
at com.testing.customwidget.client.Customwidget.onModuleLoad
(Customwidget.java:55)
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 com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:326)
at com.google.gwt.dev.shell.BrowserWidget.attachModuleSpace
(BrowserWidget.java:343)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6.access$300
(BrowserWidgetIE6.java:37)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.gwtOnLoad
(BrowserWidgetIE6.java:77)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.invoke
(BrowserWidgetIE6.java:161)
at com.google.gwt.dev.shell.ie.IDispatchImpl.Invoke
(IDispatchImpl.java:294)
at com.google.gwt.dev.shell.ie.IDispatchImpl.method6
(IDispatchImpl.java:194)
at org.eclipse.swt.internal.ole.win32.COMObject.callback6
(COMObject.java:117)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1925)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2966)
at com.google.gwt.dev.SwtHostedModeBase.processEvents
(SwtHostedModeBase.java:264)
at com.google.gwt.dev.HostedModeBase.pumpEventLoop
(HostedModeBase.java:557)
at com.google.gwt.dev.HostedModeBase.run(HostedModeBase.java:405)
at com.google.gwt.dev.HostedMode.main(HostedMode.java:232)
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