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
new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_DEFAULT),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_DEFAULT + BOLD),
				
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.MATCHING_BRACKETS_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.MATCHING_BRACKETS),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.CURRENT_LINE_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.CURRENT_LINE),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.PRINT_MARGIN_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.INT, CompilationUnitEditor.PRINT_MARGIN_COLUMN),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.PRINT_MARGIN),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, AbstractTextEditor.PREFERENCE_COLOR_FIND_SCOPE),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.LINKED_POSITION_COLOR),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.PROBLEM_INDICATION_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.PROBLEM_INDICATION),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, JavaEditorPreferencePage.PREF_SHOW_TEMP_PROBLEMS),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, JavaEditorPreferencePage.PREF_SYNC_OUTLINE_ON_CURSOR_MOVE),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitDocumentProvider.HANDLE_TEMPORARY_PROBLEMS),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.OVERVIEW_RULER),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, JavaEditor.LINE_NUMBER_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, JavaEditor.LINE_NUMBER_RULER),
				
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.SPACES_FOR_TABS),