Modifying with FixedValue.value for another class

[Datson Yan]

Hey very quick and noob question since I am still relatively new to ASM and ByteBuddy.

in my class ModifyMe.java, the method hello() returns a String "Original from method hello".

The interceptor with ByteBuddy works correctly but it seems to still execute the original method from ModifyMe and it returns the string from that method.

Class<? extends ModifyMe> loaded = new ByteBuddy().subclass(ModifyMe.class)
.method(ElementMatchers.named("hello"))
.intercept(FixedValue.value("Hello World! I have been dynamically modified!"))
.make()
.load(getClass().getClassLoader())
.getLoaded();

ModifyMe byteBuddyModifyMe = loaded.getDeclaredConstructor(String.class)
.newInstance("former glory");
System.out.println(byteBuddyModifyMe.hello());

The example with Object.class works fine.

[Rafael Winterhalter]

Is ModifyMe package private by any chance, possibly the method itself?

In this case, the method is not dispatched virtually, if in different class loaders as it would be by default? That's a little known JVM feature, but it might explain what you experience.

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