java assist

gistfile1.txt

import java.lang.reflect.Method;

import javassist.*;

import java.security.*;
import java.lang.instrument.*;

class Hello {
    public void say(int a) {
        System.out.println("Hello"+a);
    }

	public static Object newInstance() {
		// TODO Auto-generated method stub
		return null;
	}
}

class foo {
  public static void main(String args[]) {
    foo f = new foo();
    f.doIt();
  }
 
  void doIt() {
	  Object paramsObj[] = {};

    try {
      System.out.println("ran doIt() method");
      ClassPool pool = ClassPool.getDefault();
      pool.insertClassPath(new ClassClassPath(this.getClass()));
      CtClass cc = pool.makeClass("Point");
      
      
      CtClass cc1 = pool.get("Point");
      cc1.setName("Pair");
      ClassPool cp = ClassPool.getDefault();
      CtClass cc2 = cp.get("Hello");
      CtMethod m = cc2.getDeclaredMethod("say");
      
      CtMethod newmethod = CtNewMethod.make("public void testPrint(int a) { System.out.println(\"test ok\"+a); }",cc2);
      cc2.addMethod(newmethod);
      cc2.writeFile();

      
   System.out.println("testing ct"+m);
   
   CtMethod m1 = cc2.getDeclaredMethod("testPrint");
   
   System.out.println("testing ct -- new method added"+m1);
   
   
   
   byte[] myBytes = null;


   for(Method me: cc2.toClass().getDeclaredMethods()){ //test print, ok
	   Hello h = new Hello();
	   Object result = null;
       System.out.println("declared methods"+me.getName());
       if((me.getName()).equals("testPrint"))
       {
       result = me.invoke(h,10);
       
       System.out.println("declared methods exec:"+result.toString());
       }
       
       
      
   }
   
  
   
   
   
   
   

   

   
      
     



      Thread.sleep(5000);
    }
    catch (Exception e) {
	  e.printStackTrace();
	}
  }
}

gistfile2.txt

import java.lang.reflect.Method;

import javassist.*;

import java.security.*;
import java.lang.instrument.*;

class Hello {
    public void say(int a) {
        System.out.println("Hello"+a);
    }

	public static Object newInstance() {
		// TODO Auto-generated method stub
		return null;
	}
}

class foo {
  public static void main(String args[]) {
    foo f = new foo();
    f.doIt();
  }
 
  void doIt() {
	  Object paramsObj[] = {};

    try {
      System.out.println("ran doIt() method");
      ClassPool pool = ClassPool.getDefault();
      pool.insertClassPath(new ClassClassPath(this.getClass()));
      CtClass cc = pool.makeClass("Point");
      
      
      CtClass cc1 = pool.get("Point");
      cc1.setName("Pair");
      ClassPool cp = ClassPool.getDefault();
      CtClass cc2 = cp.get("Hello");
      CtMethod m = cc2.getDeclaredMethod("say");
      
      CtMethod newmethod = CtNewMethod.make("public void testPrint(int a) { System.out.println(\"test ok\"+a); }",cc2);
      cc2.addMethod(newmethod);
      cc2.writeFile();

      
   System.out.println("testing ct"+m);
   
   CtMethod m1 = cc2.getDeclaredMethod("testPrint");
   
   System.out.println("testing ct -- new method added"+m1);
   
   
   
   byte[] myBytes = null;


   for(Method me: cc2.toClass().getDeclaredMethods()){ //test print, ok
	   Hello h = new Hello();
	   Object result = null;
       System.out.println("declared methods"+me.getName());
       if((me.getName()).equals("testPrint"))
       {
       result = me.invoke(h,10);
       
       System.out.println("declared methods exec:"+result.toString());
       }
       
       
      
   }
   
  
   
   
   
   
   

   

   
      
     



      Thread.sleep(5000);
    }
    catch (Exception e) {
	  e.printStackTrace();
	}
  }
}