Native JDK random # seed (Corrected plain-text email hopefully)

Colby Thomson colbyt at
Thu Sep 16 02:40:36 PDT 2004

I'm running FreeBSD 4.10 with jdk 1.4.2p6. 

Summary: The native JDK should provide the same stack
trace error as the linux-sun-jdk when it suffers from
a lack of entropy while generating random numbers..
rather than simply locking with no output. 

I had a number of apps that locked solid with no debug
output or stack trace.  I ran these apps using the
linux-sun-jdk and recieved an error relating to
seeding random numbers (I can recreate and paste the
stack trace if needed).  I then switched back to the
native jdk and seeded /dev/random with 'rndcontrol -s
10' . Now the native JDK gets past the lock-up.  

P.S. My solution to this is to set rndcontrol in a
startup script -- let me know if there is a better


- C. Colby Thomson 
J.D. Edwards Design Studio 
cthomson at 

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