BUG

This example project demonstrates following bug:

• It will crash at application-startup if the selected perspective is in another plugin

Steps to reproduce

• Create new RCP-Application with a Application.e4xmi
• Create new PlugIn with a model-fragment (fragment.e4xmi)
• Define a perspective in the model-fragment and contribute it to the perspective-stack in Application.e4xmi
• Add the plugin to the product
• Implement a little perspective-switcher to switch between the perspectives in Application.e4xmi and fragment.e4xmi
• Restart the application

Working when the selected perspective is in Application.e4xmi. It will restart without errors.

Broken when the selected perspective is in fragment.e4xmi. It will throw an exception at startup:

java.lang.NullPointerException
  at org.eclipse.e4.ui.model.internal.ModelUtils.getContainingContext(ModelUtils.java:181)
  at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.getContainingContext(ModelServiceImpl.java:276)
  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.getContext(PartRenderingEngine.java:675)
  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:728)
  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:703)
  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:697)
  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    (...)