Maven throws "java.lang.OutOfMemoryError"

Question

I'm compiling an open source project with "mvn install" but ended up with java.lang.OutOfMemoryError: Java heap space. I tried to execute java -Xmx256m but the output was java synopsis which indicated it's an invalid command.

I'm using jdk1.5.0_08, any ideas why this is happening?

Thanks,

It's open question ;) The answer might be MAVEN_OPTS="-Xmx513m" etc. ;) — cetnar
– cetnar, Commented Dec 17, 2009 at 11:37

cletus · Accepted Answer · 2009-12-17 07:32:52Z

55

Set the environment variable:

MAVEN_OPTS="-Xmx512m"

answered Dec 17, 2009 at 7:32

cletus

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3 Comments

cetnar Over a year ago

Sometimes is good also to extend perm memory size - MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=256m"

James Selvakumar Over a year ago

Setting MAVEN_OPTS alone is not sufficient if the build fails while running unit tests. In such cases, you may have to configure the "argLine" of maven-surefire-plugin explicitly.

Surekha Over a year ago

I was getting this error on mvn install, using "mvn install -DMAVEN_OPTS=-Xmx1024m" solved my problem!

Andriy Plokhotnyuk · Accepted Answer · 2009-12-18 08:46:35Z

19

It depends on which JVM instance require more memory. As example, if tests are forked (by default), and fails due OutOfMemoryError then try configure plugin which launching them:

        <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <argLine>-Xmx1024m</argLine>
            </configuration>
        </plugin>

answered Dec 18, 2009 at 8:46

Andriy Plokhotnyuk

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2 Comments

TomJava Over a year ago

Can I add Xmx1024m -Xms1024m as well?

Andriy Plokhotnyuk Over a year ago

Yep, <argLine>-Xmx1g -Xms1g</argLine> should work

sjngm · Accepted Answer · 2012-01-19 06:25:57Z

9

Not only heap memory. You have to increase perm size also to resolve that exception in maven use these variables in environment variable.

variable name: MAVEN_OPTS
variable value: -Xmx512m -XX:MaxPermSize=256m

edited Jan 19, 2012 at 6:25

sjngm

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answered Jan 19, 2012 at 5:48

msuresham

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3 Comments

ArtOfWarfare Over a year ago

How can you get the current value of Xmx and MaxPermSize? After all, I can't increase the values without knowing what they're already set to.

James Selvakumar Over a year ago

I'm not sure of MaxPermSize, but Xmx is usually 1/4th of the physical memory. Again, this may vary depending on the JRE implementations and/or "server", "client" mode of JVM.

user2568374 Over a year ago

-bash: export: `-XX:MaxPermSize=256m': not a valid identifier

4lberto · Accepted Answer · 2018-04-27 06:50:10Z

6

Sometimes, if you use other programs inside maven, like in integration tests or Surefire, the MAVEN_OPTS is not enough. Apart from MAVEN_OPTS, try to use JAVA_TOOL_OPTIONS. This did the trick for me in Maven when running some integration tests:

export JAVA_TOOL_OPTIONS="-Xmx2048m -XX:MaxPermSize=1024m -Xms2048m"

Reference: osx maven running tests Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "main"

edited Apr 27, 2018 at 6:50

answered Aug 2, 2016 at 10:19

4lberto

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Comments

hahakubile · Accepted Answer · 2017-03-02 11:34:30Z

1

on a Unix-like system:

export MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=512m"

OutOfMemoryError

answered Mar 2, 2017 at 11:34

hahakubile

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Comments

user666 · Accepted Answer · 2015-11-25 10:25:28Z

0

Alternatively use set MAVEN_OPTS="-XX:MaxPermSize=256m" while running from command prompt.

answered Nov 25, 2015 at 10:25

user666

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Lucas Pires · Accepted Answer · 2017-01-11 16:50:35Z

0

I always use this with my shell on ubuntu:

export MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=500m"

answered Jan 11, 2017 at 16:50

Lucas Pires

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Jonas Czech · Accepted Answer · 2016-03-10 14:46:18Z

-1

Try to change or update your Maven install. I had this problem but I solved it by upgrading Maven (3.0.5 to 3.3.3).

edited Mar 10, 2016 at 14:46

Jonas Czech

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answered Mar 10, 2016 at 12:49

Abdourahmane FALL

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Matus · Accepted Answer · 2011-04-05 14:00:13Z

-5

I experienced the same problem. According to this link it might help to change jvm implementation - this can be done by setting JAVA_HOME system variable.

Try for example in the link mentioned ibm jvm or oracle jrockit:

SET JAVA_HOME=C:\bea10\jrockit160_22
mvn install

answered Apr 5, 2011 at 14:00

Matus

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