ClassFileTransformer does not apply to anonymous classes

Alan Bateman Alan.Bateman at
Fri Jan 22 14:29:46 UTC 2016

On 22/01/2016 14:00, Coleen Phillimore wrote:
> Can you send the question again?  I didn't see it.  I also mostly look 
> at JVM code and rarely deal with the Java side.
The question was asked about ClassFileTransformer which is implemented 
by the JPLIS agent via the JVM TI CFLH event. So I think the question is 
really on whether this event can be posted for classes defined via 
defineAnonymousClass. None of the standard APIs know about HotSpot 
specific concepts like "host class" but maybe the host class defining 
loader and PD can be used with this event. I don't know if this has been 
explored elsewhere already.


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