}

    @Override
    public WorkResult execute(GroovyJavaJointCompileSpec spec) {
        resolveAndFilterSourceFiles(spec);
        resolveNonStringsInCompilerArgs(spec);
        logSourceFiles(spec);
        logCompilerArguments(spec);
        return delegateAndHandleErrors(spec);
    }

    private void resolveAndFilterSourceFiles(final GroovyJavaJointCompileSpec spec) {