"Once" function does not show threads for PID

Before submitting a bug report, please check the FAQ:
http://code.google.com/p/jvmtop/wiki/FAQ

What steps will reproduce the problem?
1. Invoke jvmtop.sh <PID> -once
2. The output does not show PID threads.

What is the expected output? What do you see instead?
The output should contain 10 top running threads.

What version of jvmtop are you using? On what operating system?
0.8.0

Please post the output of the following commands:
java -version
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b06)
Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode)

echo $JAVA_HOME  (for unix/linux systems)
/home/elad/programs/jdk1.6.0_45

Please provide any additional information below.

Original issue reported on code.google.com by eladta...@gmail.com on 25 Jan 2015 at 9:49

mss / jvmtop

"Once" function does not show threads for PID #58