What does the Compile Maven phase do?

• A. The first phase, it validates the project.
• B. The second phase, it compiles the source code of the project.
• C. It validates the project.
• D. It runs integration tests.

Answer: (B)

The Compile phase is the step that turns your Java sources into executable bytecode. It uses the maven-compiler-plugin to compile files in src/main/java and writes the resulting class files to target/classes. This happens after the project has been validated and sources are prepared, and before tests or packaging. It doesn’t validate the project or run tests; it simply ensures the code is compiled and ready for the next steps. When you run mvn compile, Maven executes this phase along with any earlier phases, preparing the codebase for testing and packaging.