TreeNodeTester.java

package test;

import java.lang.reflect.Method;

public class TreeNodeTester {
	
	private static Class loadClass (String className, byte[] b) {
	    //override classDefine (as it is protected) and define the class.
	    Class clazz = null;
	    try {
	      ClassLoader loader = ClassLoader.getSystemClassLoader();
	      Class cls = Class.forName("java.lang.ClassLoader");
	      java.lang.reflect.Method method = cls.getDeclaredMethod("defineClass", new Class[] { String.class, byte[].class, int.class, int.class });

	      // protected method invocaton
	      method.setAccessible(true);
	      try {
	        Object[] args = new Object[] { className, b, new Integer(0), new Integer(b.length)};
	        clazz = (Class) method.invoke(loader, args);
	      } finally {
	        method.setAccessible(false);
	      }
	    } catch (Exception e) {
	      e.printStackTrace();
	      System.exit(1);
	    }
	    return clazz;
	  }

	public static void main(String[] args) throws Exception {
		byte[] b = TreeNodeDump.dump();
		Class<?> c = loadClass("TreeNode", b);
		Method method = c.getMethod("main", String[].class);
		method.invoke(null, new String[]{});
	}
	
}