Bug 16733 Builder pref - Cannot exclude folder from resource copying
Build 20020521 - F1 UI builder pref page currently prevents enter a folder name for the resource copy exclusion filter (folder is specified with a '/' suffix). Since 20020521, JDT/Core now supports excluding folders: The setting allowing for filtering resource copy now also supports folder filtering. Folder names are recognized by their '/' suffix, e.g. "META-INF/" specifies filtering out all folder named 'META-INF' (and their contents)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaBuilderPreferencePage.java
private StringDialogField fResourceFilterField;
	private StatusInfo fResourceFilterStatus;
	
	private SelectionButtonDialogField fAbortInvalidClasspathField;
	
	private Hashtable fWorkingValues;
	private static final String PREF_RESOURCE_FILTER= JavaCore.CORE_JAVA_BUILD_RESOURCE_COPY_FILTER;
	private static final String PREF_BUILD_INVALID_CLASSPATH= JavaCore.CORE_JAVA_BUILD_INVALID_CLASSPATH;
	private static final String ABORT= JavaCore.ABORT;
	private static final String IGNORE= JavaCore.IGNORE;
	private static String[] getAllKeys() {
		return new String[] {
			PREF_RESOURCE_FILTER, PREF_BUILD_INVALID_CLASSPATH
		};	
	}
	
	public JavaBuilderPreferencePage() {
		setPreferenceStore(JavaPlugin.getDefault().getPreferenceStore());
		setDescription(JavaUIMessages.getString("JavaBuilderPreferencePage.description")); 
	
		fWorkingValues= JavaCore.getOptions();
		IDialogFieldListener listener= new IDialogFieldListener() {
			public void dialogFieldChanged(DialogField field) {
				updateValues();
			}