Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin Java 16 with pattern matching

Question

I was playing around with new Java 16 features and when I wanted to build a local maven install I get this error:

Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:3.2.0:jar (attach-javadocs) on project persism: MavenReportException: Error while generating Javadoc:

error: ')' expected
        if (object instanceof Persistable<?> pojo) {

Pointing to "pojo" variable. This works fine when I run and build in the IDE. I have other Java 16 features in the code like records as well.

My POM source and target are set to 16.

I notice it runs this:

exe /X /C "C:\Java\jdk1.8.0_231\bin\javadoc.exe @options @argfile"

why is it running Java 8?

Any ideas?

Answer 1

Yeah I realized that Maven ran java 8 for the Javadoc. I set JAVA_HOME to my java 16 version. Problem solved.