`[java] <defunct>` with defunct children -> Any way to collect them?

Question

Relating to question : What if 'kill -9' doesn't work?

I have following situation : zombie process with threads, not collected by init :

[root@Arch64]# ps auxH | grep java
gwpl       569  0.0  0.0      0     0 ?        Zl   04:23   0:00 [java] <defunct>
gwpl       569  5.5 49.0 1466648 375572 ?      Rl   07:25  23:55 [java] <defunct>
gwpl       569 16.0 49.0 1466648 375572 ?      Rl   12:27  20:54 [java] <defunct>
gwpl       569 17.9 49.0 1466648 375572 ?      Rl   12:47  19:48 [java] <defunct>
root     10466  0.0  0.0   6740   628 pts/0    S+   14:38   0:00 grep java
[root@Arch64]# pstree -s 569
init---java---3*[{java}]

Can I do anything about that ?

Or is it init bug as suggested in comment to http://unix.stackexchange.com/a/11173/9689 ?

If it's a bug, what should I dump to help fixing it?

---

Above listing uses following status codes: Zl, Rl, S+. Here is cheatsheet from man ps to decode them:

PROCESS STATE CODES
       (...)
       R    Running or runnable (on run queue)
       S    Interruptible sleep (waiting for an event to complete)
       (...)
       Z    Defunct ("zombie") process, terminated but not reaped by its parent.

       For BSD formats and when the stat keyword is used, additional characters may be displayed:
       (...)
       L    has pages locked into memory (for real-time and custom IO)
       (...)
       +    is in the foreground process group