javassist.CannotCompileException: by java.lang.LinkageError:

[solmaz1]

hi,

I am trying to alter a method body

CtClass clazz = ClassPool.getDefault().get("test.test2.InvokeeBuilder");
CtMethod method = clazz.getDeclaredMethod("delegation");
method.setBody("test.test2.Invokee.display($1);");
clazz.toClass();

fist of all ok.

secodary, I 'm using the same class to alter method body (in the same JVM app server JBoss)

CtClass clazz = ClassPool.getDefault().get("test.test2.InvokeeBuilder");
CtMethod method = clazz.getDeclaredMethod("delegation");
method.setBody("test.test2.Invokee.display_new($2);");

clazz.toClass() throws javassist.CannotCompileException: by java.lang.LinkageError: duplicate class definition ...

how can I handle this case.

thanks.

[chiba]

Note: this setting of a field before calling super is similar to how instance inner (nested) classes work, they set the field that points to their outer class before calling their own super constructor.

[chiba]

Sorry. I faild to copy&paste.

The reason of your problem is maybe because you attempted
to reload a class. Reloading a class is prohibited by the JVM.

If you really want to reload a class, please check
javassist.tool.HotSwapper available from CVS HEAD
(that will be included in Javassist 3.1)