How to Resolve the "java.lang.OutOfMemoryError" in Maven?

How can I resolve the issue of Maven throwing a "java.lang.OutOfMemoryError" during my builds?

<project>
    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
</project>

The 'java.lang.OutOfMemoryError' in Maven indicates that your Java Virtual Machine (JVM) has run out of memory while trying to allocate space for objects during the build process. This can occur due to insufficient memory allocation, memory leaks, or overly large projects. Here’s how to address the problem effectively.

# Set MAVEN_OPTS in your environment
export MAVEN_OPTS="-Xms512m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=512m"

Causes

• Insufficient memory allocated to the JVM.
• Large project size with many dependencies.
• Memory leaks in plugins or in your code.
• Intensive resource usage during certain build phases.

Solutions

• Increase the maximum memory allocation for the JVM by setting environment variables.
• Optimize your Maven project setup by controlling dependencies and managing plugins.
• Use the `-Xmx` parameter to specify a higher maximum heap size for the JVM during builds.
• Analyze and fix any memory leaks in your code or plugins.

Mistake: Not specifying enough memory for large projects.

Solution: Set higher `MAVEN_OPTS` as shown above.

Mistake: Forgetting to check for plugins that may consume excessive memory.

Solution: Review and optimize plugin configurations to minimize memory usage.