Bug 503393 - Move SWT layout spy to separate plug-in to remove PDE dependency for RCP apps 
Bug 521182 - [compiler] method reference on null object should throw NPE at runtime (JLS compliance)
https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/issues/1184
https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/issues/1659