get byte code

[geirgp]

Is there a way to get the byte code from classes that may not be in
classpath, that could be classes created and loaded at runtime by a
script engine, etc.

Thanks

Geir

 

[Thomas Hawtin]

Is there a way to get the byte code from classes that may not be in
classpath, that could be classes created and loaded at runtime by a
script engine, etc.

It's available through instrumentation (java.lang.instrument).

Tom Hawtin

 

[geir]

It's available through instrumentation (java.lang.instrument).

Thanks, that looks good! However I noticed that for this to work a
special comman line argument must be passed, but is there any way
instrumentation could be activated from within the code instead?