remove unused code - improve path detection

util/src/org/aspectj/util/FileUtil.java

@@ -654,6 +654,19 @@ public class FileUtil {
 		return (File[]) result.toArray(new File[result.size()]);
 	}
 
+	/**
+	 * Recursively list .class files in specified directory
+	 * 
+	 * @return List of File objects
+	 */
+	public static List listClassFiles(File dir) {
+		ArrayList result = new ArrayList();
+		if ((null != dir) && dir.canRead()) {
+			listClassFiles(dir, result);
+		}
+		return result;
+	}
+
 	/**
 	 * Convert String[] paths to File[] as offset of base directory
 	 * 
@@ -1282,6 +1295,20 @@ public class FileUtil {
 		return LangUtil.sleepUntil(++delayUntil);
 	}
 
+	private static void listClassFiles(final File baseDir, ArrayList result) {
+		File[] files = baseDir.listFiles();
+		for (int i = 0; i < files.length; i++) {
+			File f = files[i];
+			if (f.isDirectory()) {
+				listClassFiles(f, result);
+			} else {
+				if (f.getName().endsWith(".class")) {
+					result.add(f);
+				}
+			}
+		}
+	}
+
 	private static void listFiles(final File baseDir, ArrayList result, FileFilter filter) {
 		File[] files = baseDir.listFiles();
 		// hack https://bugs.eclipse.org/bugs/show_bug.cgi?id=48650