False claim of syntax error

[Bios-Marcel]

The plugin claims a syntax error, even though the task compileJava runs just fine. There's absolutely no syntax error in any of the files. I've also tried running the clean task. I really don't know what's going on. It worked and at some point just stopped working.

> Task :client:googleJavaFormat FAILED


Detected Java syntax errors in the following files (you can exclude them from this task, see "https://github.com/sherter/google-java-format-gradle-plugin" for details):

D:\repos\demo\client\src\main\java\com\isp\kkg\client\Client.java
D:\repos\demo\client\src\main\java\com\isp\kkg\client\ClientHello.java
D:\repos\demo\client\src\test\java\com\isp\kkg\client\DummyTest.java

Is there anything else I can give you? I can even send you the project as a zip if you want. It's just a demo anyways.

[Bios-Marcel]

I uploaded the demo I am using. I tried it on another machine and it worked. So something might be going on with caching or so?

https://github.com/Bios-Marcel/gradle-multi-project-demo

[edsrzf]

I'm also seeing this after upgrading from 0.8 to 0.9. I've updated Gradle and the JDK at the same time, so there could be other things at play too.

[aecio]

I had this same error after updating to JDK 17 and Gradle 7.2. I found two errors that may cause this message:

• One happens if you are using an old version of google-java-formatter, which does not support Java 17. Make sure to use a recent version like 1.12.0.
• The other happens because enabling internal JDK modules are required to run on JDK 17. I posted a fix for this here: Java 17 with gradle 7 Support #67 (comment).

I also opened PR #66 to provide a better error message, but unfortunately, the project seems to be unmaintained currently (#57).

[cies]

I have the same problem, with Java 14 source compatibility and Gradle 7.2

One happens if you are using an old version of google-java-formatter, which does not support Java 17. Make sure to use a recent version like 1.12.0.

@aecio: where do I set this? This is an intellij plugin right? Isn't that different from the gradle plugin we discuss here?

[aecio]

This Gradle plugin is a wrapper for the original Google's library google-java-formatter. As described in the README of this project, you can change the library version by adding the following configuration in your Gradle build file:

googleJavaFormat {
  toolVersion = '1.1-SNAPSHOT'
}

[cies]

One more hint for those who try to fix this issue:

Make sure your gradlew uses the right JDK version. I had this problem when using the latest plugin version with the latest toolVersion specified in the gradle file with the flags as specified in #67 ... Still it did not work because my gradlew used my system default JDK11.

I fixed it with:

mkdir -p $HOME/.gradle
echo "org.gradle.java.home=$HOME/.jdks/temurin-17.xyz/" > $HOME/.gradle/gradle.properties

Where $HOME/.jdks/temurin-17.xyz/ should be replaced with the path to right JDK.