Question

I’m trying to debug an java eclipse project with some problem!

I’m starting using CGLIB to make faster reflection calls using the index metod.

example

FastClass fastClass = FastClass.create(getClass());
int index = fastClass.getIndex("methodName", new Class[] { Object.class });
fastClass.invoke(index, this, new Object[] { obj } );

now when i try to put a breakpoint into a class that is called by fastreflection method this is the eclipse output.

I try to change compiler option on generate line number with no results.

I also upload an eclipse project (built with Juno version) that replicates the problem!!

http://www.filefactory.com/file/4zryz3gjgbyh/n/FastDebug.rar

Thanks!

Answer 1

I “resolved”(understand) the problem, but it is not a problem with Eclipse. When you launch
the program this line: FastClass.create(ReflectionTarget.class); ends up
creating an entirely new version of the compiled class removing all
non-essential stuff from the classfile to make it “fast” – that includes all
the line number / debug infos, which means the breakpoint cannot be set in it.

http://cglib.sourceforge.net/xref/net/sf/cglib/core/package-summary.html

There’s no javadoc and you need to read the source but now i understand this is not a
problem but a feature of this method to make fast reflection!