Re: Setting a property for System.getProperty()

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 09 May 2013 21:57:26 -0400
Message-ID:
<518c5409$0$32115$14726298@news.sunsite.dk>
On 5/9/2013 12:48 PM, markspace wrote:

On 5/9/2013 9:14 AM, RVic wrote:

Well, apparently it IS being set, in /etc/init.d for that file I
see: --------------------------------- JVM_PARAM='-verbose:gc
-XX:+PrintGCDetails -Dcn.instance=router -Dcn.env=mirror'

export JVM_PARAM

# Call the common script /home/cnadmin/scripts/tomcat/tomcat.sh $1
----------------------------------------------------

So I guess it is being set here. I shall go back to the drawing
board, apparetnyl what I believed to be the problem may not be the
problem. Thanks for your help guys. RVic


Does this actually do anything? I don't think the jvm will treat the
JVM_PARAM variable in a special way. Google at least didn't seem to
come up with anything. So unless the JVM_PARAM is on the invocation
line to tomcat.sh, I don't think anyone is going to see these values.

You might try modifying the tomcat.sh script to dump its parameters to a
file where you can see them, just to verify what's being passed in to
the tomcat instance. There might be a better way too; maybe the ps
command can be induced to dump the command line of a running process.


The JVM does certainly not do anything itself.

But that tomcat.sh may very well include JVM_PARAM in the
java command line.

For a standard Tomcat download from Apache the env var is
JAVA_OPTS and the script is catalina.sh (called from startup.sh).

Arne

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