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CompareUIPlugin throws a NullPointerException [message #695832]

Tue, 12 July 2011 16:01

dali

Messages: 2
Registered: July 2011

Junior Member

Hi,

i tried to test the Compare API according to this guide "FAQ_How_do_I_create_a_compare_editor" in the eclipse wiki but it was unsuccessful. The CompareUIPlugin throws everytime a NullPointerException at

new CompareConfiguration()

.

Hier the complete error stack:

Exception in thread "main" java.lang.ExceptionInInitializerError
	at org.eclipse.compare.CompareEditorInput.<clinit>(CompareEditorInput.java:161)
	at MainClass.main(MainClass.java:10)
Caused by: java.lang.NullPointerException
	at org.eclipse.compare.internal.CompareUIPlugin.getPluginId(CompareUIPlugin.java:309)
	at org.eclipse.compare.internal.ICompareUIConstants.<clinit>(ICompareUIConstants.java:15)
	... 2 more

I use Eclipse 3.5.1 and the Compare Plugin "org.eclipse.compare_3.5.0.I20090514-0808.jar".

Any idea why?

Thanks

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Re: CompareUIPlugin throws a NullPointerException [message #696047 is a reply to message #695832]

Wed, 13 July 2011 07:18

Dani Megert

Messages: 3802
Registered: July 2009

Senior Member

On 12.07.2011 18:01, dali wrote:
> Hi,
>
> i tried to test the Compare API according to this guide
> "FAQ_How_do_I_create_a_compare_editor" in the eclipse wiki but it was
> unsuccessful. The CompareUIPlugin throws everytime a
> NullPointerException at new CompareConfiguration().

It looks like you try to start your code as normal Java application
instead of using an 'Eclipse Application' launch configuration.

Dani
>
> Hier the complete error stack:
>
> Exception in thread "main" java.lang.ExceptionInInitializerError
> at
> org.eclipse.compare.CompareEditorInput.<clinit>(CompareEditorInput.java:161)
> at MainClass.main(MainClass.java:10)
> Caused by: java.lang.NullPointerException
> at
> org.eclipse.compare.internal.CompareUIPlugin.getPluginId(CompareUIPlugin.java:309)
> at
> org.eclipse.compare.internal.ICompareUIConstants.<clinit>(ICompareUIConstants.java:15)
> ... 2 more
>
>
> I use Eclipse 3.5.1 and the Compare Plugin
> "org.eclipse.compare_3.5.0.I20090514-0808.jar".
>
> Any idea why?
>
> Thanks
>

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Re: CompareUIPlugin throws a NullPointerException [message #696054 is a reply to message #696047]

Wed, 13 July 2011 07:46

dali

Messages: 2
Registered: July 2011

Junior Member

Hi Dani,

i integrated the code snippet in Eclipse RCP-based application and it has a debug and run "Eclipse Application" launch configuration. The problem occurs when i start the code with the eclipse configuration! So i dont think thats play a role.

[Updated on: Wed, 13 July 2011 07:46]

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Re: CompareUIPlugin throws a NullPointerException [message #696299 is a reply to message #696054]

Wed, 13 July 2011 16:30

Ed Merks

Messages: 33136
Registered: July 2009

Senior Member

The stack doesn't seem to indicate that you're running as an Eclipse
application. It seems to indicate you're running main directly. You'll
want to check into that more carefully.

On 13/07/2011 12:46 AM, dali wrote:
> Hi Dani,
>
> i integrated the code snippet in Eclipse RCP-based application and it
> has a debug and run "Eclipse Application" launch configuration. The
> problem occurs when i start the code with the eclipse configuration!
> So i dont think thats play a role.
>
>
>
>
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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