Could not create the Java virtual machine What happen?

Question

all,good day!
i use tomcat7 and JRockit JVM;
tomcat7 version info:
Server version: Apache Tomcat/7.0.27
Server built: Mar 31 2012 03:43:36
Server number: 7.0.27.0
OS Name: Linux
OS Version: 2.6.32-220.el6.x86_64
Architecture: amd64
JVM Version: 1.6.0_02-b05
JVM Vendor: BEA Systems, Inc.
JRockit JVM version info:
java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
Oracle JRockit(R) (build R28.2.2-7-148152-1.6.0_29-20111221-2104-linux-x86_64, compiled mode)
in R28 jrdoc ,The -XgcPrio option is deprecated in Oracle JRockit R28. The option works in R28, but Oracle recommends that you use -Xgc instead. For more information, see -Xgc;
in -Xgc option info lists the garbage collection modes that i can specify with the -Xgc option. pausetime mode in which the option；
but，but，i use -Xgc:pausetime in my tomcat7;tomcat startup error:
The configuration of the JVM attributes in Tomcat in catalina.sh
export JAVA_OPTS="-server -Xms25G -Xmx25G -XgcPrio:pausetime -XpauseTarget=200"
the error info:
[ERROR] Argument error: -Xgc:pausetime
[ERROR] pausetime is not a valid garbage collector name for -Xgc.
Valid options are: singlecon, gencon, genpar or parallel (singlepar).
[WARN ] No unit entered for pause time target, assuming ms.
Could not create the Java virtual machine.
what's wrong in my configuration ?
Edited by: 944618 on 2012-7-5 上午4:26

Answer 1

I would add the jvm flag -showversion next to the -Xgc:pausetime flag, so you will see which JVM you're actually running.
Also, the following part of your post is a bit inconsistent, which jvm flag are you actally using?
"but，but，i use -Xgc:pausetime in my tomcat7;tomcat startup error:
The configuration of the JVM attributes in Tomcat in catalina.sh
export JAVA_OPTS="-server -Xms25G -Xmx25G -XgcPrio:pausetime -XpauseTarget=200"
the error info:
[ERROR] Argument error: -Xgc:pausetime"
The error output you posted looks like the error you would get from a R27 version of JRockit.