JAVA_OPTS Syntax in catalina.bat

Question

i am trying to increase tomcat memory by adding JAVA_OPTS in catalina.bat as follows:

rem   TITLE           (Optional) Specify the title of Tomcat window. The default
rem                   TITLE is Tomcat if it's not specified.
rem                   Example (all one line)
rem                   set TITLE=Tomcat.Cluster#1.Server#1 [%DATE% %TIME%]
rem
rem
rem
rem $Id: catalina.bat 1146096 2011-07-13 15:20:43Z markt $
rem ---------------------------------------------------------------------------

JAVA_OPTS="-Djava.awt.headless=true -Dfile.encoding=UTF-8 
-server -Xms1536m -Xmx1536m
-XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=256m 
-XX:MaxPermSize=512m -XX:+DisableExplicitGC 
-XX:UseConcMarkSweepGC 
-XX:CMSPermGenSweepingEnabled 
-XX:CMSClassUnloadingEnabled"

but i am getting following errors in CMD when running the startup or shutdown scripts:

'JAVA_OPTS' is not recognized as an internal or external command,
operable program or batch file.
'-server' is not recognized as an internal or external command,
operable program or batch file.
The filename, directory name, or volume label syntax is incorrect.
The filename, directory name, or volume label syntax is incorrect.
The filename, directory name, or volume label syntax is incorrect.
The filename, directory name, or volume label syntax is incorrect.
The filename, directory name, or volume label syntax is incorrect.

please advise why i am getting them.

Answer 1

Try:

set JAVA_OPTS=-Djava.awt.headless=true -Dfile.encoding=UTF-8 ^
-server -Xms1536m -Xmx1536m ^
-XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=256m ^
-XX:MaxPermSize=512m -XX:+DisableExplicitGC ^
-XX:+UseConcMarkSweepGC ^
-XX:+CMSClassUnloadingEnabled

• You need to use the set command to set an environment variable.
• If you want to split a command over multiple lines in a windows bat file you need to add a ^ (caret) at the end of each line.
• No quotes necessary.