LWP leak in agent12c?

 I use Hobbit (now called Xymon) to monitor our Oracle DB servers - Solaris 10 upd 8.  One of the metrics Hobbit watches is CPU usage based on prstat output.  Our primary production DB is on a V490 with 4 dual core CPUs (8 cores total).  I typically receive alerts two to four times a day when the "CPU" usages exceeds 4 (half the number of cores).  Recently I have seen alerts (with include the output of the prstat) showing a single process using up to 26%.  Example:

   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP

 24034 oracle    325M  254M sleep   59    0 114:23:55  26% java/234

  7298 oracle   1242M  798M sleep   48    2   0:02:28 5.6% oracle/14