Joint compiler fails when function has array of objects parameter

When groovy class implements java interface located in other package with method returning array of java objects (not primitive), joint compilation fails with org.codehaus.groovy.control.MultipleCompilationErrorsException

Running joint compiler again compiles this groovy class successfully.

Attached file contains example files and script to run groovyc in joint compiler mode.
Run ./joint-compile.sh - MultipleCompilationErrorsException
Run it again - success.

To reproduce please remove created *.class files
Reproduced - always.

Workaround: add package name of returned java class to groovy method

    public foo.JavaDataObject[] ...