Bug 454089 - NullPointerException from OS Resources view 

Change-Id: I2cbd7dd42b8edff5ac61a6f0f25b091dcb698be4
Signed-off-by: Marc Khouzam <marc.khouzam@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/38066
Reviewed-by: Anton Leherbauer <anton.leherbauer@windriver.com>