Installing the plugin, navigating to a build.gradle-file and pressing Cmd+Alt+U on MacOS triggers following warning: "command 'java.projectConfiguration.update' not found"

If a .java-file is opened a message "Classpath is incomplete. Only syntax errors will be reported" appears. But dependencies are downloaded and the thumbs-up appears.

After the thumbs-up appears, going to a build.grade-file and pressing Cmd+Alt+U on MacOS triggers no warning, but has no effect as it seems.

I was hoping it would generate the files necessary to support the project. ( .classpath, .project, .settings )

Am I missing something?

Environment

• Operating System: OSX Sierra
• JDK version: 1.8.0_121
• Visual Studio Code version: 1.10.2
• Java extension version: