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OperationHistoryActionHandler AssertionFailedException: null argument [message #331346]

Tue, 02 September 2008 19:17

Eclipse User

Originally posted by: cagiva92.hotmail.com

Hi,

I'm getting an AssertionFailedException when the below code is called from
my dispose() method. Please let me know if you have any suggestion or if
you know why this is happening. Thanks in advance!

IUndoContext context = getUndoContext();
OperationHistoryFactory.getOperationHistory().dispose(contex t, true, true,
true);

--------
org.eclipse.core.runtime.AssertionFailedException: null argument:
at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:86)
at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:74)
at
org.eclipse.core.commands.operations.AbstractOperation.hasCo ntext(AbstractOperation.java:153)
at
org.eclipse.ui.operations.OperationHistoryActionHandler$Hist oryListener.historyNotification(OperationHistoryActionHandle r.java:130)
at
org.eclipse.core.commands.operations.DefaultOperationHistory $2.run(DefaultOperationHistory.java:929)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at
org.eclipse.core.commands.operations.DefaultOperationHistory .notifyListeners(DefaultOperationHistory.java:918)
at
org.eclipse.core.commands.operations.DefaultOperationHistory .notifyRemoved(DefaultOperationHistory.java:1042)
at
org.eclipse.core.commands.operations.DefaultOperationHistory .internalRemove(DefaultOperationHistory.java:890)
at
org.eclipse.core.commands.operations.DefaultOperationHistory .flushUndo(DefaultOperationHistory.java:624)
at
org.eclipse.core.commands.operations.DefaultOperationHistory .dispose(DefaultOperationHistory.java:328)
at abc.yxz.core.plan.Plan.dispose(Plan.java:209)

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Re: OperationHistoryActionHandler AssertionFailedException: null argument [message #331365 is a reply to message #331346]

Wed, 03 September 2008 16:54

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Ben wrote:
> Hi,
>
> I'm getting an AssertionFailedException when the below code is called
> from my dispose() method. Please let me know if you have any suggestion
> or if you know why this is happening. Thanks in advance!
> IUndoContext context = getUndoContext();
> OperationHistoryFactory.getOperationHistory().dispose(contex t, true,
> true, true);

When you call dispose, you're destroying your applications operation
history. Set a breakpoint in the DefaultOperationHistory.dispose(*) to
find out where else it is being called from. If you are running the
workbench, WorkbenchOperationSupport disposes the operation history on
shutdown.

PW

--
Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions
http://wiki.eclipse.org/Menus_Extension_Mapping
http://help.eclipse.org/ganymede/index.jsp?topic=/org.eclips e.platform.doc.isv/guide/workbench.htm

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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