no dtrace hotspot probes in 1.6_25

[Shane Cox]

After upgrading to JDK 1.6_25, I can't seem to enable hotspot DTrace Probes. I've tried enabling ExtendedDTraceProbes at startup and via jinfo. No luck.

/usr/jdk/instances/jdk1.6.0/bin/jinfo -flag ExtendedDTraceProbes 4558
-XX:+ExtendedDTraceProbes

dtrace -l | grep hotspot
I see that plockstat probes are present:
dtrace -l | grep 4558
45863 plockstat4558 libc.so.1 mutex_lock_impl mutex-error
45864 plockstat4558 libc.so.1 mutex_lock_internal mutex-error
.....

But no hotspot probes.

Is there an additional step to enable hotspot probes in the new JDK? Is this related to 6974813 - JVM needs to demand load DTrace probes

Thanks,
Shane