This is for mod_jk 1.2.8 but the bug still exists in the HEAD of CVS.

t@12 (l@5) terminated by signal SEGV (no mapping at the fault address)
Current function is jk_translate
 2330                   !strcmp(r->main->handler, DIR_MAGIC_TYPE)) {
(/opt/SUNWspro/bin/dbx) where                                                
current thread: t@12
  [1] strcmp(0x14594a8, 0xfeba6b58, 0x0, 0x0, 0xfecf565c, 0x68747470), at 0xfee32d34
=>[2] jk_translate(r = 0x3016d8), line 2330 in "mod_jk.c"
  [3] ap_run_translate_name(0x3016d8, 0x30c7e8, 0x301810, 0x7efefeff, 0x0, 0x0),
at 0xa23d0

I will be attaching a patch.