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Editorial Team
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Asked: 2026-05-24T09:14:47+00:00

This may bit a bit of a basic question, but I can’t seem to

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This may bit a bit of a basic question, but I can’t seem to find an answer on the web. I’m trying to automatically set up tomcat as a service through a batch file.

My batch file currently looks like this:

set memSize=512
set jvmOptions="-XX:MaxPermSize=512M"
ECHO Setting up tomcat as a service. 
call service.bat install
ECHO Setting the memory allocation to a maximum of %memSize%
ECHO Using JVM options %jvmOptions%
Tomcat6 //US// --JvmMx=%memSize%  --Startup="auto" --JvmOptions=%jvmOptions%

The issue I’m facing is that running the –JvmOptions switch overwrites all the current java options that are set in the tomcat6w.exe.

So my question is, does anyone know how to have the –JvmOptions switch concatenate the passed value to the end of the current value?

Thanks in advance

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1 Answer

  1. Editorial Team

    After a long hard search I did manage to find the answer in a code example. But then to make me feel very foolish I noticed that the answer was also here right under my nose on the Tomcat6 Windows Service How To page. By replacing the — with ++ the option is concatenated rather than replacing the original.

    So the batch file became. 

    set memSize=512
set jvmOptions="-XX:MaxPermSize=512M"
ECHO Setting up tomcat as a service. 
call service.bat install
ECHO Setting the memory allocation to a maximum of %memSize%
ECHO Using JVM options %jvmOptions%
Tomcat6 //US// --JvmMx=%memSize%  --Startup="auto" ++JvmOptions=%jvmOptions%

    Thanks.

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