FAQ

How to build native image

For Windows

• Download GraalVM Community Edition 21.0.0.2
  • Latest version is 21.3.0, but I didn't tested it yet.
• Install native-image
  • gu install native-image
• Open x64 Native Tools Command Prompt for VS 2019
• Build PE binary using GraalVM Native Image
  • native-image -jar log4j2-scanner-2.3.2.jar log4j2-scan-2.3.2 -H:-CheckToolchain -H:ReflectionConfigurationFiles=scanner.json
  • Added ReflectionConfigurationFiles option to allow reparse point related reflection.

For Linux

• Set environment variables

  • export PATH=/path/to/graalvm-ce/graalvm-ce-java11-21.0.0.2/bin:$PATH
    export JAVA_HOME=/path/to/graalvm-ce/graalvm-ce-java11-21.0.0.2/
    

• Build elf binary using GraalVM Native Image
  • native-image -H:+StaticExecutableWithDynamicLibC -jar log4j2-scanner-2.3.2.jar log4j2-scan -H:-CheckToolchain -H:+AllowIncompleteClasspath
  • Added AllowIncompleteClasspath option to ignore windows specific reflection.

For Mac OS

• Build Mach-O binary using GraalVM Native Image
  • native-image -jar log4j2-scanner-2.3.2.jar log4j2-scan -H:-CheckToolchain -H:+AllowIncompleteClasspath
  • Added AllowIncompleteClasspath option to ignore windows specific reflection.