@Override public void initializeFrom(ILaunchConfiguration configuration) { boolean append= true; try { append = configuration.getAttribute(ILaunchManager.ATTR_APPEND_ENVIRONMENT_VARIABLES, true); } catch (CoreException e) { DebugUIPlugin.log(e.getStatus()); } if (append) { appendEnvironment.setSelection(true); replaceEnvironment.setSelection(false); } else { replaceEnvironment.setSelection(true); appendEnvironment.setSelection(false); } updateEnvironment(configuration); updateAppendReplace(); }