problem setting JAVA_OPTS

[vik ar]

Hi. I'm trying to set JAVA_OPTS in catalina.bat as follows:

set JAVA_OPTS =%JAVA_OPTS% -XX:MaxPermSize=256m -Djava.security.auth.login.config=C:\Program Files\Apache Software Foundation\apache-tomcat-6.0.29\conf\login.conf

However when I double click startup.bat a command window opens and shuts immediately???

[William Brogden]

You need to execute startup.bat from an open command prompt to see what is happening.

If another window opens and closes immediately you should change the last executable line of startup.bat from

 call "%EXECUTABLE%" start %CMD_LINE_ARGS%
   

to

  call "%EXECUTABLE%" run %CMD_LINE_ARGS%
  

so that catalina.bat will run in the same window and thus show the real error.

bill

[vik ar]

ok thanks bill. after doing what you said I am getting:

Exception in  thread "main" java.lang.NoClassDefFoundError: Files\Apache

Please note when I do not add JAVA_OPTS tomcat starts up fine.

[Tim Holloway]

Try replacing all the backslashes in your directory paths with "real" (forward) slashes. Backslash in Unix/Java is an escape character, so it's usually safer (and more conventient) to code filepaths in Unix form even when running Windows.

[Koshila Dissanayake]

Create a separate setenv.bat file in the bin folder and add the above configuration in it.
example configuration: set JAVA_OPTS=-Dfile.encoding=UTF-8 -Xms128m -Xmx1024m -XX:PermSize=64m -XX:MaxPermSize=256m

[Tim Holloway]

Koshila Dissanayake wrote:Create a separate setenv.bat file in the bin folder and add the above configuration in it.
example configuration: set JAVA_OPTS=-Dfile.encoding=UTF-8 -Xms128m -Xmx1024m -XX:PermSize=64m -XX:MaxPermSize=256m

THIS is the solution. It ensures that your JVM is consistently configured.

If you must do a temporary configuration override, consider CATALINA_OPTS instead of JAVA_OPTS. But you're better using TOMCAT_HOME\bin\setenv.bat. or on Linux TOMCAT_HOME/bin/catalina.sh.

Note that the catalina.bat file is not supplied with Tomcat. You create your own from scratch. Don't know why they didn't supply a placeholder version.