Bug 16923 Auto activation preference dialog
The auto activation characters and Timeout Text fields are enabled even when Auto activation itself is disabled. This was confusing to me because I thought that "." should cause automatic code assist, but it wasn't. Disabling the feature should disable the controls what modify the details for that feature.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
store.setDefault(ContentAssistPreference.AUTOACTIVATION, true);
		store.setDefault(ContentAssistPreference.AUTOACTIVATION_DELAY, 500);
		
		store.setDefault(ContentAssistPreference.AUTOINSERT, true);
		PreferenceConverter.setDefault(store, ContentAssistPreference.PROPOSALS_BACKGROUND, new RGB(254, 241, 233));
		PreferenceConverter.setDefault(store, ContentAssistPreference.PROPOSALS_FOREGROUND, new RGB(0, 0, 0));
		PreferenceConverter.setDefault(store, ContentAssistPreference.PARAMETERS_BACKGROUND, new RGB(254, 241, 233));
		PreferenceConverter.setDefault(store, ContentAssistPreference.PARAMETERS_FOREGROUND, new RGB(0, 0, 0));
		store.setDefault(ContentAssistPreference.AUTOACTIVATION_TRIGGERS_JAVA, "."); 
		store.setDefault(ContentAssistPreference.AUTOACTIVATION_TRIGGERS_JAVADOC, "@"); 
		store.setDefault(ContentAssistPreference.SHOW_VISIBLE_PROPOSALS, true);
		store.setDefault(ContentAssistPreference.CASE_SENSITIVITY, false);
		store.setDefault(ContentAssistPreference.ORDER_PROPOSALS, false);
		store.setDefault(ContentAssistPreference.ADD_IMPORT, true);
		store.setDefault(ContentAssistPreference.FILL_METHOD_ARGUMENTS, false);
	}
	/*
	 * @see IWorkbenchPreferencePage#init()
	 */	
	public void init(IWorkbench workbench) {
	}
	/*
	 * @see PreferencePage#createControl(Composite)
	 */
	public void createControl(Composite parent) {
		super.createControl(parent);
		WorkbenchHelp.setHelp(getControl(), IJavaHelpContextIds.JAVA_EDITOR_PREFERENCE_PAGE);
	}
	private void handleSyntaxColorListSelection() {