JAVA_OPTS
is the standard environment variable that some servers and other java apps append to the call that executes the java
command.
For example in tomcat if you define JAVA_OPTS='-Xmx1024m'
, the startup script will execute java org.apache.tomcat.Servert -Xmx1024m
If you are running in Linux/OSX, you can set the JAVA_OPTS, right before you call the startup script by doing
JAVA_OPTS='-Djava.awt.headless=true'
This will only last as long as the console is open. To make it more permanent you can add it to your ~/.profile or ~/.bashrc file.
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