CheckRunHistory API with Spooler throws a null pointer exception

Current Situation

When using CheckRunHistory API with the spooler object a null pointer exception is thrown

<job  order="yes">
   <script  language="java:javascript">
        <![CDATA[
function spooler_process()  {
    var jobHistory = new Packages.com.sos.jitl.checkrunhistory.JobHistory( spooler.delegate);
    var jobHistoryInfo = jobHistory.getJobInfo( spooler_task.job.name, 100, "" );
}
        ]]>
    </script>
    <run_time />
</job>

Desired Behaviour

No null pointer exception should be thrown.

Workaround

Use the constructor

    var jobHistory = new Packages.com.sos.jitl.checkrunhistory.JobHistory( host,port);

where host is the host where JobScheduler is running and port is the tcp port of JobScheduler.

Patch

A patch is available here.
Please unzip the archiv and copy the jar file to $scheduler_home/lib/patches. Please remove the patch when a relase > 1.11.4 is installed.