Java Programming

Recently , I saw the error code 160 in shell log.

I don't know what's the code 160 means.

if who know the 160 code's meaning . please tell us , what had happend to my program!

under below is shell log and somthing about my program:

=======================================================

Shell.log

=======================================================

0650.sh

Java some_path/0650

RCODE=$?

=======================================================

0650.java

----------someing to do--------------

----------some log output-----------

if sucess

system.exit(0);

if failed

system.exit(-1);

----------java end----------------------

=======================================================

Untill now what I knew about it:

1,JVM error code (just like system.exit(160);) but i searched the jvm source,i did not found the code 160.

2, is 160 C program's error code? (JVM is compiled by C Langrage)

3,Linux OS error code are  No. 1-132 ,after the No.132 all are  unknow error.

4,java log is empty.Anything was not writed in java log. the return value was not 0 or -1 . infact the return value was 160. i don't know what's 160?

5, i try to use linux kill command by different singal number. (just like kill -1 PID  kill -31 PID), ,i got 129 to 197 error code ,but no 160.

please help us ! Tell us what the error code 160 is?

best regards for you!