mvn-compile

mvn compile [options]

mvn compile runs the compile phase of the Maven default lifecycle, executing all phases that come before it (validate, initialize, generate-sources, process-resources, ...) and finally invoking maven-compiler-plugin to compile src/main/java into target/classes. Resources from src/main/resources are copied during the process-resources phase, so they are available on the classpath after compile completes.The compiler version and target language level are governed by the maven-compiler-plugin configuration in pom.xml or by the maven.compiler.source, maven.compiler.target, and maven.compiler.release properties. Use -T for parallel multi-module builds, and -pl/-am to compile only the relevant module of a large reactor.

-P profile

Activate one or more comma-separated Maven profiles.

Skip test compilation in subsequent phases. Tests are still compiled if mvn test runs without this flag.

Set the --release flag passed to javac, controlling the target JDK API level.

Run in offline mode; never reach out to remote repositories.

Force updates of snapshot dependencies and plugins.

Restrict the reactor build to a comma-separated list of modules.

Together with -pl, also build dependencies of the selected modules.

Print only errors and the final result.

Enable verbose debug output (full stack traces, effective POM).

Build in parallel using N threads (or 1C for one per core).

Test sources in src/test/java are compiled in a separate phase (test-compile) and are not produced by mvn compile alone. Generated sources from annotation processors are written to target/generated-sources/annotations and must be on the source path for IDE awareness.

mvn(1), mvn-package(1), mvn-install(1), javac(1)