Here’s a fun thing: all the commands in OpenJDK will execve() themselves to set LD_LIBRARY_PATH if it’s not what they want it to be. This totally unhooks your gdb session.

Here’s another fun thing: setting _JAVA_LAUNCHER_DEBUG=1 prints out a load of stuff so you can see this bit of tomfoolery. I added an extra bit of debugging in my repository, a dump of the environment so I can see what I need to be exporting to keep gdb hooked in.

Om Shanti.