Update java_tools

[cushon]

There have been a couple of recent Java toolchain fixes that improve compatibility with JDK 21 that it would be nice to get into 6.3.0:

• 6.2.0: Unexpected output "Unknown constant: 11" #18360
• ArrayIndexOutOfBoundsException in turbine with JDK 21 class files #18743

The first one has been merged into 6.3.0, the second one hasn't yet.

I think both changes will require a java_tools release to be visible, would it be possible to include both in 6.3.0 and then cut another java_tools release?

cc @kshyanashree @comius @hvadehra

[iancha1992]

@cushon hi, we can absolutely assist with cherry-picking the second one. But we'll need you to give us the commit ID or push to the master so that we can merge to the release-6.3.0 branch. We can communicate on the original issue: #18743.

[cushon]

@iancha1992 to double-check, can you also do a java_tools release (similar to the example in #17427)?

Just cherry-picking the fixes into 6.3.0 isn't sufficient, the prebuilt tools also have to be updated and then then the java_tools release containing those fixes has to be cherry-picked