Bug 16554 "Reconcile Java views" preference is meaningless
"Window->Preferences->Java->Reconcile Java views" I don't think anyone will know what this preference does. It should be given a more meaningful title.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaBasePreferencePage.java
super.performDefaults();
	}
	/*
	 * @see IPreferencePage#performOk()
	 */
	public boolean performOk() {
		IPreferenceStore store= getPreferenceStore();
		for (int i= 0; i < fCheckBoxes.size(); i++) {
			Button button= (Button) fCheckBoxes.get(i);
			String key= (String) button.getData();
			store.setValue(key, button.getSelection());
		}
		for (int i= 0; i < fRadioButtons.size(); i++) {
			Button button= (Button) fRadioButtons.get(i);
			if (button.getSelection()) {
				String[] info= (String[]) button.getData();
				store.setValue(info[0], info[1]);
			}
		}
		for (int i= 0; i < fTextControls.size(); i++) {
			Text text= (Text) fTextControls.get(i);
			String key= (String) text.getData();
			store.setValue(key, text.getText());
		}
		
		JavaPlugin.getDefault().savePluginPreferences();
		return super.performOk();
	}
}