Chapter 6. Configuring the Java compiler

By default, the Quarkus Maven plug-in passes compiler flags to the javac command from the maven-compiler-plugin plug-in.

Procedure

  • To customize the compiler flags used in development mode, add a configuration section to the plugin block and set the compilerArgs property. You can also set source, target, and jvmArgs. For example, to pass --enable-preview to both the JVM and javac add the following lines:

    <plugin>
      <groupId>io.quarkus</groupId>
      <artifactId>quarkus-maven-plugin</artifactId>
      <version>${quarkus-plugin.version}</version>
    
      <configuration>
        <source>${maven.compiler.source}</source>
        <target>${maven.compiler.target}</target>
        <compilerArgs>
          <arg>--enable-preview</arg>
        </compilerArgs>
        <jvmArgs>--enable-preview</jvmArgs>
      </configuration>
    
      ...
    </plugin>