Write java class object to java source file

I've created a pojo object in runtime using javassist. I want to write it to a java file. I don't want to write a lot of code for this job. Is there any utility for doing this?

for example the output should be something like this :

@Annotations
public class MyClass{
   @Id
   private String id; 

   @Column    
   public String getId(){
       return id;
   }

   public void setId(String id){
       this.id=id;       
   }

}