Archive for category maven

Set MAVEN_OPTS For All Terminal Sessions

Posted by brianr in maven on July 8th, 2009

I was just exporting the MAVEN_OPTS var before I ran any maven command, but then I decided to just stick it in my terminal session’s profile (thanks to quick tip from my buddy Jon Marston) — you can do this 2 ways on your mac:

1) Open Profile in Finder

  1. Open Finder
  2. Locate and open the file /etc/profile — that’s in your root hard drive, in the folder etc.
  3. At the end of the file, drop in the following line: 

    export MAVEN_OPTS=-Xmx1024m

2) Open Terminal and Edit the Profile

  1. Open Terminal
  2. Enter in the following command: 

    sudo nano /etc/profile

    This basically says that as a super user I want to edit the profile file in a poor man’s vi-like text editor — good phrase Marston.

  3. You’ll be asked for the super user’s password — if it’s your box then you know this — enter it and it’ll open profile.
  4. At the end of the file, drop in the following line: 

    export MAVEN_OPTS=-Xmx1024m

  5. Hit CTRL + X to exit
  6. It’ll ask if you want to save, so hit Y.

DONE.

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Maven2 Install Error: java.lang.OutOfMemoryError: Java heap space

Posted by brianr in maven on July 1st, 2009

If you ever run the maven command “maven install” and you run into the following error:

[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Java heap space
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.OutOfMemoryError: Java heap space

Try setting the MAVEN_OPTS memory to a larger max; eg:

Last login: Wed Jul  1 12:33:56 on ttys000
brian-rileys-macbook-pro:~ brianmriley$ export MAVEN_OPTS=-Xmx1024m
brian-rileys-macbook-pro:~ brianmriley$ cd /Users/brianmriley/projects/spring-hibernate/workspaces/emp-mgmt-console/SpringActionscript/trunk/core
brian-rileys-macbook-pro:core brianmriley$ mvn install
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Spring ActionScript
[INFO]    task-segment: [install]
[INFO] ------------------------------------------------------------------------
...
[INFO] Installing /Users/brianmriley/projects/spring-hibernate/workspaces/emp-mgmt-console/SpringActionscript/trunk/core/target/spring-actionscript-0.8-SNAPSHOT.swc to /Users/brianmriley/.m2/repository/org/springextensions/spring-actionscript/0.8-SNAPSHOT/spring-actionscript-0.8-SNAPSHOT.swc
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 33 seconds
[INFO] Finished at: Wed Jul 01 14:58:34 EDT 2009
[INFO] Final Memory: 26M/115M
[INFO] ------------------------------------------------------------------------

Just keep in mind this is a one time dealio and you’ll have to set this each time you run a maven install.

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