What is the reason for Eclipse including M2_REPO in Java Build Path > Libraries > Classpath?

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M2REPO is included in Eclipse's Java Build Path to allow easy integration with Maven projects. Maven is a popular build tool used for managing dependencies in Java projects. By including M2REPO in the Classpath, Eclipse is able to access and manage Maven dependencies easily. This makes it easier for developers to build and manage their applications, especially when working on larger projects with many dependencies.