It was referring to a no longer existent weaver under
aj-build/dist/tools/lib/aspectjweaver.jar, which now has been replaced
by the new file lib/aspectj/lib/aspectjweaver.jar.
Several tests were broken, not finding the agent. But because those
tests make no assertions, nobody ever noticed. Only when I had to change
some LTW tests from in-process to full LTW mode (see next commit) due to
them now obviously calling some code paths which need '--add-opens', I
even noticed the problem.
Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>