Re: java stapbm: handle auto deletion of old files

[Tetsuo Handa <penguin-kernel at I-love dot SAKURA dot ne dot jp>]

David Smith wrote:
> Tetsuo,
> 
> I'm sorry that we haven't responded to your emails about systemtap's
> java support. Unfortunately, the guy who worked on this has moved to
> another project, and no one has really stepped up to take over java
> support. Luckily, not many problems have been reported with it
> (besides the things you've mentioned).
> 
> I've touched the java support a couple of times, but haven't spent the
> time to really understand it to the level your patches require.

Regarding "handle auto deletion of old files" patch, it does not require
java knowledge. It utilizes how Linux kernel works.

> 
> I'm not really sure how to proceed here, just wanted you to know that
> you weren't being completely ignored.

Thank you for responding.

> 
> If someone had the time, it might not be a bad idea to take a step
> back and look at the current state of java debugging and see if
> byteman is still the right answer here. One of the things that have
> always bugged me about the current systemtap java support is the lack
> of support for listing java class/methods
> (<https://sourceware.org/bugzilla/show_bug.cgi?id=15773>).

Even if we stop using byteman in future, I think that this "handle auto
deletion of old files" patch is worth applying, for it prevents random
failure which will become more and more likely to occur as stapbm is
executed for more and more times.