> On 3 Aug 2021, at 02:30, Peter Firmstone <peter.firmst...@zeus.net.au> wrote: > > > I am still hopeful that OpenJDK might create some hooks for us and keep the > AccessController, AccessControlContext and Subject.doAs methods to make > supporting all Java versions easier.
When I mentioned “hooks” I was referring to something along the lines of a callback when a file is accessed. > > Just curious, when using Agents, what are the recommendations for line > numbers in code, for exceptions etc, how are these affected when > instrumenting? When you transform a class, you basically replace its content with new content, so the short answer is that what happens to line numbers is whatever you want. If you’re using ASM for your transformation and ignore line numbers, which ASM represents as a kind of no-op instructions, then what would usually happen is that if original instruction X is mapped to line N and when transforming the stream you replace X with YXZ, then all of YXZ will remain mapped to line N.
