Incorrect translation of class property which type has array as enclosed type argument

class B {
    Map<String, Map<String, Integer[]>> columnsMap = [:]
}

public class C {
    public void f(B b) {
        System.out.println(b.getColumnsMap());
    }
}

    <target name="compile2" depends="check_java_version,prepare_libs">
        <mkdir dir="temp_src/classes"/>

        <path id="groovy.class.path">
            <fileset dir="${lib.dir}/groovy" includes="*.jar"/>
        </path>

        <taskdef name="groovyc"
                 classname="org.codehaus.groovy.ant.Groovyc"
                 classpathref="groovy.class.path" />

        <groovyc srcdir="temp_src"
                 destdir="temp_src/classes"
                 listfiles="yes"
                 stacktrace="yes"
                 verbose="yes">
            <classpath refid="arms.class.path"/>
            <javac source="1.6" target="1.6"/>
        </groovyc>
    </target>