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[e4-dev] Strange Exception
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Sometimes when I startup my RCP app, I get the following Exception
Caused by: java.lang.NullPointerException
at org.eclipse.ui.internal.WorkbenchPage.updateActiveEditorSources(WorkbenchPage.java:359)
at org.eclipse.ui.internal.WorkbenchPage.updateActivations(WorkbenchPage.java:238)
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:230)
at org.eclipse.ui.internal.WorkbenchPage$E4PartListener.partActivated(WorkbenchPage.java:158)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.firePartActivated(PartServiceImpl.java:176)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.setPart(PartServiceImpl.java:150)
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 org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
It seems to find the editor, but the siteId is missing (just my guess)
When I clean the workspace everything is fine, So I guess its related to my elementFactories.
I saw it happen in production too, but I have no clue, cause I am not able to reproduce it consistently.
Do you have an idea where this comes from?
Could this be an Exception thrown in my editorInput?
Regards Thomas
