@Execute
public void execute(EPartService partService,
@Named(PART_ID) String viewId,
@Named(HIDE_ON_RESHOW) @Optional Boolean hideOnReshow)
java.lang.NullPointerException
at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.generateCommand(HandledContributionItem.java:286)
at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.setModel(HandledContributionItem.java:265)
at org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer.processHandledItem(MenuManagerRenderer.java:703)