There are a few keys that can help the debugging of the JRVE env in console. you can type in each keys in JRVE console to see what's happening under the hood.

key '0' : System information
key '5' : Enable shutdown
key '7' : Start JRockit Management Server (port 7091)
key '8' : Statistics Counters
key '9' : Full Thread Dump
key '0' : Status of Debug-key

Below is the sample out from each keys.

Debug-key '1' pressed

============ JRockitVE System Information ============
JRockitVE version : 11.1.1.3.0-67-131044
Kernel version : 6.1.0.0-97-131024
JVM version : R27.6.6-28_o-125824-1.6.0_17-20091214-2104-linux-ia32
Hypervisor version : Xen 3.4.0
Boot state : 0x007effff
Uptime : 0 days 02:04:31
CPU : uniprocessor @2327 Mhz
CPU usage : 0% ctx/s: 285 preempt/s: 0 migrations/s: 0
Physical pages : 82379/261121 (321/1020 MB)
Network info : 10.179.97.64 (10.179.97.64/255.255.254.0)
GateWay : 10.179.96.1
MAC address : 00:16:3e:7e:dc:78
Boot options :
vfsCwd : /application/user_projects/domains/wlsve_domain
mainArgs : java -javaagent:/jrockitve/services/sshd/sshd.jar -cp /jrockitve/jrockit/lib/tools.jar:/jrockitve/lib/common.jar:/application/patch_wls1032/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/application/wlserver_10.3/server/lib/weblogic.jar -Dweblogic.Name=WlsveAdmin -Dweblogic.Domain=wlsve_domain -Dweblogic.management.username=weblogic -Dweblogic.management.password=welcome1 -Dweblogic.management.GenerateDefaultConfig=true weblogic.Server
consLog : /jrockitve/log/jrockitve.log
mounts : ext2 / dev0;
posixLocale : en_US
posixTimezone : Asia/Seoul
posixEncoding : ISO-8859-1
Local disk : Size: 1024M, Used: 728M, Free: 295M
========================================================

Debug-key '5' pressed
Shutdown enabled.

Debug-key '7' pressed
[JRockit] Management server already started. Ignoring request.

Debug-key '8' pressed
Starting stat recording
Debug-key '8' pressed
========= Statistics Counters for the last second =========
dev.eth0_rx.cnt : 22 packets
dev.eth0_rx_bytes.cnt : 2704 bytes
dev.net_interrupts.cnt : 22 interrupts
evt.timer_ticks.cnt : 123 ticks
hyper.priv_entries.cnt : 144 entries
schedule.context_switches.cnt : 271 switches
schedule.idle_cpu_time.cnt : 997318849 nanoseconds
schedule.idle_cpu_time_0.cnt : 997318849 nanoseconds
schedule.total_cpu_time.cnt : 1000031757 nanoseconds
time.system_time.cnt : 1000 ns
time.timer_updates.cnt : 123 updates
time.wallclock_time.cnt : 1000 ns
=======================================

Debug-key '9' pressed

===== FULL THREAD DUMP ===============
Fri Jun 4 08:22:12 2010
BEA JRockit(R) R27.6.6-28_o-125824-1.6.0_17-20091214-2104-linux-ia32

"Main Thread" id=1 idx=0x4 tid=1 prio=5 alive, in native, waiting
-- Waiting for notification on: weblogic/t3/srvr/T3Srvr@0x646ede8[fat lock]
at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)
at java/lang/Object.wait(Object.java:485)
at weblogic/t3/srvr/T3Srvr.waitForDeath(T3Srvr.java:919)
^-- Lock released while waiting: weblogic/t3/srvr/T3Srvr@0x646ede8[fat lock]
at weblogic/t3/srvr/T3Srvr.run(T3Srvr.java:479)
at weblogic/Server.main(Server.java:67)
at jrockit/vm/RNI.c2java(IIIII)V(Native Method)
-- end of trace

"(Signal Handler)" id=2 idx=0x8 tid=2 prio=5 alive, in native, daemon

Open lock chains
================
Chain 1:
"ExecuteThread: '0' for queue: 'weblogic.socket.Muxer'" id=23 idx=0x50 tid=20 waiting for java/lang/String@0x630c588 held by:
"ExecuteThread: '1' for queue: 'weblogic.socket.Muxer'" id=24 idx=0x54 tid=21 (active)

===== END OF THREAD DUMP ===============

Debug-key '0' pressed

Debug-keys enabled

Happy Cloud Walking :)