Apparently the correct form is without the ""
As in
set JAVA_OPTS=-Xms512M -Xmx1024M
Reddit
reddit.com › r/powershell › how do i set java_opts?
r/PowerShell on Reddit: How do i set JAVA_OPTS?
February 25, 2021 -
Hi
Im creating a Gatling performance testing suit and need to start the test execution with a PS1 file.
What need to happen is that I need to set JAVA_OPTS variable so that the Gatling tests can use them.
To set the JAVA_OPTS in a BAT file i type
set JAVA_OPTS="-Dfoo=bar"
this creates a variable called "foo" with a value "bar"
How do I set the JAVA_OPTS in a PS1 file?
java - How do I use the JAVA_OPTS environment variable? - Stack Overflow
How do I use the JAVA_OPTS variable to configure a web server (a linux server)? How can I set -Djava.awt.headless=true using JAVA_OPTS? More on stackoverflow.com
java - Setting JAVA_OPTS in windows using command prompt - Stack Overflow
I am running the java program on windows server 2012, I want to set the JAVA_OPTS variable and use it, here is how I am doing it: Open a command prompt in the bin of jdk where it is installed ,and More on stackoverflow.com
java - How to set JAVA_OPTS in Intellij for a Spring Boot project? - Stack Overflow
I want to add JAVA_OPTS in Intellij for a Spring Boot project and I don't know where to add it. I go to Edit configuration and then should I add it at the Environment variables like here: But I do... More on stackoverflow.com
where to set the JAVA_OPTS for Max memory alloc...| JBoss.org Content Archive (Read Only)
where's the best place to configure the max memory allocated for JBoss? In the "C:\jboss-4.2.2.GA\bin\run.bat", set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx1G More on developer.jboss.org
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Java in&Out Blog
manismaran.wordpress.com › java_opts-java_opts-environment-variable-linux-java_opts-how-to-set-java_opts
java_opts + java_opts environment variable+ Linux java_opts+ how to set java_opts – Java in&Out Blog
March 22, 2016 - JVM Options on Windows (64 bit) set JAVA_OPTS=%JAVA_OPTS% -Xms1024m -Xmx2048m -XX:PermSize=32m set JAVA_OPTS=%JAVA_OPTS% -XX:MaxPermSize=512m -Xss2m -XX:+UseConcMarkSweepGC set JAVA_OPTS=%JAVA_OPTS% -XX:+CMSClassUnloadingEnabled JVM Options on Linux and Mac OSX (64 bit) export JAVA_OPTS=-Xms1024m -Xmx8192m -XX:PermSize=32m -XX:MaxPermSize=8192m or export JAVA_OPTS="$JAVA_OPTS -Xms1024m -Xmx8192m -XX:PermSize=32m -XX:MaxPermSize=8192m" export JAVA_OPTS="$JAVA_OPTS -Xms1024m -Xmx2048m -XX:PermSize=32m" export JAVA_OPTS="$JAVA_OPTS -XX:MaxPermSize=512m -Xss2m" export JAVA_OPTS="$JAVA_OPTS -XX:+UseConcMarkSweepGC" export JAVA_OPTS="$JAVA_OPTS -XX:+CMSClassUnloadingEnabled"…
Liquibase
docs.liquibase.com › concepts › connections › java-opts-environment-variable.html
What are JAVA_OPTS environment variables?
You can set one property at a time, or set multiple properties separated by a whitespace character. For example, to set the changelog-lock-poll-rate property when using the update command, open the command line and pass arguments to JAVA_OPTS using the -Dproperty=value format.
Top answer 1 of 5
101
JAVA_OPTS is the standard environment variable that some servers and other java apps append to the call that executes the java command.
For example in tomcat if you define JAVA_OPTS='-Xmx1024m', the startup script will execute java org.apache.tomcat.Servert -Xmx1024m
If you are running in Linux/OSX, you can set the JAVA_OPTS, right before you call the startup script by doing
JAVA_OPTS='-Djava.awt.headless=true'
This will only last as long as the console is open. To make it more permanent you can add it to your ~/.profile or ~/.bashrc file.
2 of 5
27
Just figured it out in Oracle Java the environmental variable is called: JAVA_TOOL_OPTIONS
rather than JAVA_OPTS
Top answer 1 of 2
4
on windows you have to set the variable like:
set JAVA_OPTS = “-Xdebug , server=y”
and use it this way
java %JAVA_OPTS% –cp .Server
2 of 2
2
Windows uses "%JAVA_OPTS% rather than "$JAVA_OPTS" which is UNIX/LINUX. You can check if the environment is updated with JAVA_OPTS by echoing that: echo %JAVA_OPTS%.
Coderanch
coderanch.com › t › 551938 › application-servers › setting-JAVA-OPTS-variable-linux
setting JAVA_OPTS variable in linux (Tomcat forum at Coderanch)
In your case, however, you'd have ... log directory, and so forth. The easiest way to setup JAVA_OPTS is to create a file named "$CATALINA_BASE/bin/setenv.sh" and define JAVA_OPTS in that file....
Baeldung
baeldung.com › home › devops › catalina_opts vs. java_opts in apache tomcat
CATALINA_OPTS vs. JAVA_OPTS in Apache Tomcat | Baeldung
January 8, 2024 - JAVA_OPTS is a key env variable to configure customized JVM settings. We can manage memory, GC configurations, and system properties using JAVA_OPTS. In order to understand the working of JAVA_OPTS.
GitHub
github.com › cloudfoundry › java-buildpack › blob › main › docs › framework-java_opts.md
java-buildpack/docs/framework-java_opts.md at main · cloudfoundry/java-buildpack
To override the configuration via the JBP_CONFIG_JAVA_OPTS environment variable, use YAML flow style (inline YAML) with curly braces: Example 1: Using an array of options (recommended) cf set-env my-application JBP_CONFIG_JAVA_OPTS '{ java_opts: ["-Xms256m", "-Xmx1024m", "-XX:+UseG1GC"] }'
Author cloudfoundry
JBoss.org
developer.jboss.org › thread › 64941
where to set the JAVA_OPTS for Max memory alloc...| JBoss.org Content Archive (Read Only)
where's the best place to configure the max memory allocated for JBoss? In the "C:\jboss-4.2.2.GA\bin\run.bat", set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx1G
Jira
mifosforge.jira.com › wiki › spaces › docs › pages › 115769361 › Setting+java+opts
Setting java opts - Mifos X User Zone - Confluence
ex: sudo nano setenv.sh · Copy and paste below content into it: Recommended for small instance(1.7gb ram):- export JAVA_OPTS="$JAVA_OPTS\ -server\ -Xms512m\ -Xmx512m · -XX:+HeapDumpOnOutOfMemoryError\ -XX:MaxPermSize=256m" Recommended for medium instance(3.75gb ram):- export JAVA_OPTS="$JAVA_OPTS\ -server\ -Xms1024m\ -Xmx1024m ·
Atlassian
sakaiproject.atlassian.net › wiki › spaces › DOC › pages › 17257302152
Java Environment Variables (2.7) - Documentation - Confluence
We recommend that you define these settings in Tomcat's /bin directory in a file named setenv.sh (Unix/Mac) or setenv.bat (Windows). See the Tomcat section below for more details. ... export JAVA_OPTS='-server -Xms512m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=512m -XX:NewSize=192m -XX:MaxNewSize=384m -Djava.awt.headless=true -Dhttp.agent=Sakai -Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false -Dsun.lang.ClassLoader.allowArraySyntax=true'
Liquibase
docs.liquibase.com › liquibase community 5.0 › user guide › liquibase concepts › what are java_opts environment variables?
Community 5.0: What are JAVA_OPTS environment variables?
You can set one property at a time, or set multiple properties separated by a whitespace character. For example, to set the changelog-lock-poll-rate property when using the update command, open the command line, and pass arguments to JAVA_OPTS using the -Dproperty=value format.
Delft Stack
delftstack.com › home › howto › java › java opts
JAVA_OPTS Environment Variable | Delft Stack
March 4, 2025 - JAVA_OPTS is an environment variable that is used to specify options for the Java Virtual Machine (JVM). It allows developers to set various parameters that influence how Java applications run.
javaspring
javaspring.net › blog › how-do-i-use-the-java-opts-environment-variable
How to Use JAVA_OPTS Environment Variable to Configure a Linux Web Server: Setting -Djava.awt.headless=true
Edit the /etc/profile.d/java_opts.sh file (create it if it doesn’t exist): ... To set JAVA_OPTS for your user only, edit your shell’s profile file (e.g., ~/.bashrc for Bash or ~/.zshrc for Zsh):
IBM
ibm.com › docs › en › sdk-java-technology › 8
Specifying Java options and system properties - IBM Documentation
January 22, 2026 - Create a file that contains the options, and specify that file on the command line or in the IBM_JAVA_OPTIONS environment variable by using the -Xoptionsfile parameter.
Red Hat
docs.redhat.com › en › documentation › red_hat_jboss_enterprise_application_platform › 7.4 › html › configuration_guide › configuring_jvm_settings
Chapter 9. Configuring JVM Settings | Configuration Guide | Red Hat JBoss Enterprise Application Platform | 7.4 | Red Hat Documentation
JVM settings for standalone JBoss EAP server instances can be declared at runtime by setting the JAVA_OPTS environment variable before starting the server.
Coderanch
coderanch.com › t › 625114 › application-servers › JAVA-OPTS-Variable-Handling-Environment
JAVA_OPTS Variable Handling (Environment Var vs. System Property) [Solved] (Tomcat forum at Coderanch)
December 10, 2013 - It's all in catalina.sh, nowhere else. My guess is that your setenv.sh is not being included/executed. Check its user/group/file permissions too. ... Karthik Shiraly wrote:JAVA_OPTS is not a variable recognized by JVM (atleast by the Oracle/Sun/OpenJDK JVM).