Re: Instrumentation in native code

Starting from java 6 you can retransform already loaded classes. See
http://download.oracle.com/javase/6/docs/api/java/lang/instrument/Instrumentation.html#retransformClasses(java.lang.Class...)

Nikita
On Oct 9, 2011, at 22:54, Prashant Deva wrote:

> I was wondering if there is a bytecode instrumentation library similar to asm for C/C++.
> 
> Since ASM is written in Java, it can only be used within a javaagent.
> This limits its ability to instrument classes loaded before the java agent loads.
> 
> For example, we would like to add fields to the java.lang.Thread class.
> This can only be done through a native agent, since by the time the javaagent loads, the Thread class is already loaded and thus we cannot add fields to it.
> 
> Prashant
> 
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