Arash Bijanzadeh [http://community.jboss.org/people/armita] created the discussion "Class loader issue in javassist" To view the discussion, visit: http://community.jboss.org/message/619450#619450 -------------------------------------------------------------- I am trying to get a hold on javassist for one of our companies projects. I wrote this simple class for testing public class Main {     public void test(){         ClassPool cp = ClassPool.getDefault();         CtClass entity = cp.makeClass("Entity");         try {             entity.addField(CtField.make(" public Integer id;",entity));             entity.addField(CtField.make(" public String name;", entity));             entity.addMethod(CtNewMethod.make("public void say() { System.out.println(12222);}",entity));             Class EntityClass = entity.toClass();             entity.writeFile("/tmp");             Object e=  EntityClass.newInstance();             Field name = EntityClass.getField("name");             name.set("Ooldooz", e);             System.out.println(name.get(e));         } catch (CannotCompileException e) {             e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.         } catch (InstantiationException e) {             e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.         } catch (IllegalAccessException e) {             e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.         } catch (NoSuchFieldException e) {             e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.         } catch (IOException e) {             e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.         }     }     public static void main(String[] args){         Main main = new Main();         main.test();     } } Trying to run, I get this error: Can anybody help me out please? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/619450#619450] Start a new discussion in Javassist at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]