private void switchToPerspective(final PlaceRequest place, final PerspectiveActivity newPerspectiveActivity, final ParameterizedCommand<PerspectiveDefinition> closeOldPerspectiveOpenPartsAndExecuteChainedCallback) { if (closeAllCurrentPanels()) { closeAllSplashScreens(); addSplashScreenFor(place); perspectiveManager.switchToPerspective(place, newPerspectiveActivity, closeOldPerspectiveOpenPartsAndExecuteChainedCallback); } else { // some panels didn't want to close, so not going to launch new perspective. clean up its activity. try { newPerspectiveActivity.onClose(); } catch (Exception ex) { lifecycleErrorHandler.handle(newPerspectiveActivity, LifecyclePhase.OPEN, ex); } existingWorkbenchActivities.remove(newPerspectiveActivity.getPlace()); activityManager.destroyActivity(newPerspectiveActivity); } }