Re: Get java.lang.IllegalAccessError when accessing the private field of a outside class via ASM Java Bytecode

Le 03/10/2010 22:26, [email protected] a écrit :
> Hi, I want to replace reflection code with ASM to access the private field of
> an outside class for performance improvement. In reflection , the private field
> can be access via getDeclaredField() and setAccessible(true). How to access the
> private field of a outside class via Objectweb ASM bytecode API? I set to get
> the private field from something like, via
>
> Field current = sourceObject.getDeclaredField(privateFieldName);
> Field.setAccessible(true);
> Type sourceType = Type.getType(sourceObject.getClass());
> mv.visitFieldInsn(Opcodes.GETFIELD,
> 		  sourceType.getInternalName(),
> 		  privateFieldname,
> 		  Type.getDescriptor(current.getType()));
> When the byte code is executed and to get the private field, I always got an
> error "java.lang.IllegalAccessError "
>    

The VM also verifies the bytecode.

> Is there any standard way to access/get the value fro ma private field of an
> outside class? Thanks a bundle,
>
> E
>    

Reflection :)

Why do you want to bypass reflection ?

Rémi

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