How to increase memory: Java heap space error

创建于 2013年08月19日 19:40

I'm running IntelliJ 12.1.2 with Maven and am trying to use the Parameterized.class from Junit 4.11 to read in a .csv file containing 500 records and perform tests on each parameter (parameter is simply a relative url onto which I append a base url). I am getting a java.lang.OutOfMemoryError: Java heap space error.

I beleive I have already increased the memory size in

Info.plist

and also Maven runner to max sizes but still no joy.

Can anyone post the recommended / optimal solution for IntelliJ 12?

Please note I am a beginner, so I don't know if what I am trying is already going to ask too much of resources.

1 条评论

Permanently deleted user

创建于 2013年08月20日 17:22

First of all - you shouldn't modify Info.plist. If you want to alter VM parameters for IDEA, there's a dedicated file for that: IntelliJ IDEA.app/bin/idea.vmoptions. Besides, those options don't work for Maven runner and Run/Debug configurations.
Next thing - Maven runner and Run/Debug configurations don't share VM options.
If you are running JUnit tests as a part of Maven build you have to configure surefire plugin like this:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <version>2.16</version>
  <configuration>
    <argLine>-Xmx1024m</argLine>
  </configuration>
</plugin>
If you are running the tests directly from Run/Debug you need to add -Xmx to VM options in respective configuration like this:

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