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
public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				handleAppearanceColorListSelection();
			}
		});
		foregroundColorButton.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				int i= fAppearanceColorList.getSelectionIndex();
				String key= fAppearanceColorListModel[i][1];
				
				PreferenceConverter.setValue(fOverlayStore, key, fAppearanceForegroundColorEditor.getColorValue());
			}
		});
		return behaviorComposite;
	}
	
	private Control createProblemIndicationPage(Composite parent) {
		Composite composite= new Composite(parent, SWT.NULL);
		GridLayout layout= new GridLayout(); layout.numColumns= 2;
		composite.setLayout(layout);
				
		String label= JavaUIMessages.getString("JavaEditorPreferencePage.showProblemsBeforeCompiling"); 
		addCheckBox(composite, label, CompilationUnitDocumentProvider.HANDLE_TEMPORARY_PROBLEMS, 0);
		label= JavaUIMessages.getString("JavaEditorPreferencePage.highlightProblems"); 
		addCheckBox(composite, label, CompilationUnitEditor.PROBLEM_INDICATION, 0);