IllegalAccessError from com.sun.tools.javac.util

[rikintanna]

Similar to #787 (comment)_

Caused by: java.lang.IllegalAccessError: class com.google.googlejavaformat.java.RemoveUnusedImports (in unnamed module @0x2b099be2) cannot access class com.sun.tools.javac.util.Context (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.util to unnamed module @0x2b099be2 at com.google.googlejavaformat.java.RemoveUnusedImports.removeUnusedImports(RemoveUnusedImports.java:218) ... 142 more

This issue occurs when building at command line and in Intellij.

I tried adding the below workaround to my gradle.properties file

org.gradle.jvmargs=-Xms2g -Xmx8g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 \
  --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \
  --add-exports=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED \
  --add-exports=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED \
  --add-exports=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED \
  --add-exports=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED \
  --add-exports=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED \
  --add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED \
  --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED \
  --add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED \
  --add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED

java version

✗ java -version
openjdk version "17.0.10" 2024-01-16
OpenJDK Runtime Environment Homebrew (build 17.0.10+0)
OpenJDK 64-Bit Server VM Homebrew (build 17.0.10+0, mixed mode, sharing)

Originally posted by @rikintanna in #787 (comment)

[romani]

@cushon , can you consider to remove label "Intelij" ?

this problem is for maven projects when formatter is used as library , so it is problem for all users of jdk17.

java.lang.IllegalAccessError: class com.google.googlejavaformat.java.JavaInput (in unnamed module @0x459e9125) cannot access class com.sun.tools.javac.parser.Tokens$TokenKind (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.parser to unnamed module @0x459e9125

we have problems with it at checkstyle/checkstyle#15222 (comment) , failure is on MacOS container with JDK17.

some workaround for maven users is at https://github.com/Cosium/git-code-format-maven-plugin?tab=readme-ov-file#jdk-16-peculiarities

[cushon]

@romani there's some documentation about this here: https://github.com/google/google-java-format?tab=readme-ov-file#as-a-library, the --add-exports= flags are required when using google-java-format as a library