Failing builds on GitHub Windows runners

[Jochen Schalanda]

Hi everyone,

we've had a problem with failing builds on Windows runners for GitHub Actions for a few weeks.

It looks like Maven (or rather org.apache.maven.plugins:maven-javadoc-plugin:3.2.0) fails to find org.apache.commons.lang3.ClassUtils when executed as part of the tests for the java-simple Maven archetype:

2020-08-14T07:01:50.1878901Z [INFO] [WARNING] Error injecting: org.apache.maven.plugins.javadoc.JavadocJar
2020-08-14T07:01:50.2060587Z [INFO] java.lang.NoClassDefFoundError: org/apache/commons/lang3/ClassUtils
2020-08-14T07:01:50.2061128Z [INFO]     at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.<clinit>

The details and complete logs of failing runs can be found in this issue: https://github.com/dropwizard/dropwizard/issues/3415

I'm a bit at a loss why the builds on Windows still work with AppVeyor but not on GitHub Actions Windows runners.

Example: https://ci.appveyor.com/project/dropwizard/dropwizard/builds/34653650

Maybe somebody on this list has an idea what to check.

Cheers,

Jochen