Bug 82231 [build path] Hard to find type restriction compiler problem preferences
I20050104-1600 There compiler preference page contains a Warning/Error node with many sub-entries . I tried to find where I could change the 'warning' for the access of internal types to 'error'. No luck until I realized that the Build node also contains Warning/Error settings.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/PropertyAndPreferencePage.java
private SelectionButtonDialogField fUseProjectSettings;
	private IStatus fBlockStatus;
	private Composite fParentComposite;
	
	private IProject fProject; 
	private Object fData; 
	
	private static final String NO_LINK_DATA= "nolink"; 
	
	public PropertyAndPreferencePage() {
		fBlockStatus= new StatusInfo();
		fBlockEnableState= null;
		fProject= null;
		fData= null;
	}
	protected abstract Control createPreferenceContent(Composite composite);
	protected abstract boolean hasProjectSpecificOptions(IProject project);
	
	protected abstract String getPreferencePageID();
	protected abstract String getPropertyPageID();
	
	protected boolean supportsProjectSpecificOptions() {
		return getPropertyPageID() != null;
	}
	
	protected boolean offerLink() {
		if (fData instanceof String) {
			String str= (String) fData;
			return str.indexOf(NO_LINK_DATA) == -1;
		}