[Wrapper-user] JVM Exit Unexpectedly During Thread Dump

[Mohamad F. <fu...@st...>]

Hi,
 
Whenever I do a thread dump "tomcat dump" or "kill -3 <process id>", the JVM
exit unexpectedly.
 
I realized that when I remove the "java.awt.headless=true" the JVM doesn't
exit. On top of that, if run tomcat from Catalina.sh, with the headless, I
can still do thread dumps..
 
Anyway, following are the system specs..
 
Solaris
Tomcat 5 (being wrapped)
Wrapper 3.1.2
JDK 1.4.2
 
Following is the wrapper.conf
 
#********************************************************************
# Wrapper Properties
#********************************************************************
# Java Application
wrapper.java.command=/usr/j2sdk1.4.2_06/bin/java
wrapper.request_thread_dump_on_failed_jvm_exit=true
 
# Java Main class.  This class must implement the WrapperListener interface
#  or guarantee that the WrapperManager class is initialized.  Helper
#  classes are provided to do this for you.  See the Integration section
#  of the documentation for details.
wrapper.java.mainclass=org.tanukisoftware.wrapper.WrapperStartStopApp
 
# Java Classpath (include wrapper.jar)  Add class path elements as
#  needed starting from 1
wrapper.java.classpath.1=/export/home/pin2/fuzztest/jakarta-tomcat-5.0.28/co
mmon
/lib/wrapper.jar
wrapper.java.classpath.2=/usr/j2sdk1.4.2_06/lib/tools.jar
wrapper.java.classpath.3=/export/home/pin2/fuzztest/jakarta-tomcat-5.0.28/bi
n/bo
otstrap.jar
 
 
# Java Library Path (location of Wrapper.DLL or libwrapper.so)
wrapper.java.library.path.1=/export/home/pin2/fuzztest/jakarta-tomcat-5.0.28
/com
mon/lib
 
# Java Additional Parameters
#wrapper.java.additional.1=/export/home/pin2/fuzztest/jakarta-tomcat-5.0.28/
bin:
/export/home/pin2/fuzztest/jakarta-tomcat-5.0.28/common/endorsed
 
#wrapper.java.additional.1=/export/home/pin2/fuzztest/jakarta-tomcat-5.0.28/
bin:
/export/home/pin2/fuzztest/jakarta-tomcat-5.0.28/common/endorsed
wrapper.java.additional.1=-Djava.endorsed.dirs=/export/home/pin2/fuzztest/ja
kart
a-tomcat-5.0.28/common/endorsed
wrapper.java.additional.2=-Dcatalina.base=/export/home/pin2/fuzztest/jakarta
-tom
cat-5.0.28
wrapper.java.additional.3=-Dcatalina.home=/export/home/pin2/fuzztest/jakarta
-tom
cat-5.0.28
wrapper.java.additional.4=-Djava.io.tmpdir=/export/home/pin2/fuzztest/jakart
a-to
mcat-5.0.28/temp
#wrapper.java.additional.5=-server
wrapper.java.additional.5=-Dbuild.compiler.emacs=true
wrapper.java.additional.6=-Djava.awt.headless=true
#wrapper.java.additional.7=-server
#wrapper.java.additional.6=-XX:MaxPermSize=160M
#wrapper.java.additional.7=-Xrs
#wrapper.java.additional.10=-XX:+UseConcMarkSweepGC
#wrapper.java.additional.11=-Xloggc:/tmp/gc.log
#wrapper.java.additional.12=-XX:+UseParNewGC
 
# Initial Java Heap Size (in MB)
#wrapper.java.initmemory=3
 
# Maximum Java Heap Size (in MB)
#wrapper.java.maxmemory=64
 
# Application parameters.  Add parameters as needed starting from 1
wrapper.app.parameter.1=org.apache.catalina.startup.Bootstrap
 
wrapper.app.parameter.2=1
wrapper.app.parameter.3=start
 
wrapper.app.parameter.4=org.apache.catalina.startup.Bootstrap
wrapper.app.parameter.5=true
wrapper.app.parameter.6=1
wrapper.app.parameter.7=stop
 
 
The wrapper.log is as follows:
STATUS | wrapper  | 2005/01/27 12:35:48 | --> Wrapper Started as Daemon
STATUS | wrapper  | 2005/01/27 12:35:48 | Launching a JVM...
INFO   | jvm 1    | 2005/01/27 12:35:50 | Wrapper (Version 3.1.2)
http://wrapper.tanukisoftware.org
INFO   | jvm 1    | 2005/01/27 12:35:50 | 
STATUS | wrapper  | 2005/01/27 12:35:54 | Dumping JVM state.
ERROR  | wrapper  | 2005/01/27 12:35:56 | JVM exited unexpectedly.
STATUS | wrapper  | 2005/01/27 12:36:00 | Launching a JVM...
INFO   | jvm 2    | 2005/01/27 12:36:01 | Wrapper (Version 3.1.2)
http://wrapper.tanukisoftware.org <http://wrapper.tanukisoftware.org/> 
 
 
Thank you in advanced.