NPE when using the "Recommended Roles"-view

What steps will reproduce the problem?
1. Open the view in a new workspace.
2. Enter the identifier find_customer_by_name.
3. Press Enter.

What is the expected output? What do you see instead?
I expect to see recommended roles, but nothing happens. In the workspace-log I 
see

java.lang.NullPointerException
    at java.util.HashSet.<init>(Unknown Source)
    at de.akra.idocit.ui.composites.DisplayRecommendedRolesCompositeSelection.<init>(DisplayRecommendedRolesCompositeSelection.java:85)
    at de.akra.idocit.ui.composites.RecommendRolesComposite.doSetSelection(RecommendRolesComposite.java:232)
    at de.akra.idocit.ui.composites.RecommendRolesComposite.doSetSelection(RecommendRolesComposite.java:1)
    at org.pocui.swt.composites.AbsComposite.setSelection(AbsComposite.java:167)
    at org.pocui.swt.composites.AbsComposite.setSelection(AbsComposite.java:161)
    at de.akra.idocit.ui.composites.RecommendRolesComposite$1.widgetSelected(RecommendRolesComposite.java:262)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    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.equinox.launcher.Main.invokeFramework(Main.java:622)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
Original issue reported on code.google.com by krauseda...@web.de on 15 Aug 2012 at 7:12
0xCAB / idocit

NPE when using the "Recommended Roles"-view #118
