OutOfMemoryError and GC overhead limit in Maven’s surefire plugin – How to resolve?
When you run into OutOfMemoryError when running unit tests in Maven, you have to set the Java Heap Memory in the maven-surefire-plugin inside the pom.xml.
Surefire usually runs in a own VM which does not use maven opts memory settings.
See here for how to adjust surefire memory settings: surefire plugin
So what you would have to do is to basically change your pom.xml to set memory settings for the surefire plugin.
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>3.7</version> <configuration> <argLine>-Xms512m -Xmx512m</argLine> </configuration> </plugin>