Java Mapscript: ProcessLegendTemplate throws error

[GeoIT]

Dear experts,
I used mapObj.processLegendTemplate successfully with mapserver 4.0. Now I
try to upgrade to version 440 and get the following error using this method:

Java.lang.UnknownError: Can't free NULL table

Any ideas ?

The code is:
        public String getProcessedLegendTemplate(mapObj mapObject) {
                String[] names = {"img", "legend", "scalebar", "ref"};
                String[] values = {"", "", "", ""};
                int numItems = 4;
                return mapObject.processLegendTemplate(names, values,
numItems);
        }

regards
Andreas Paukner-Ruzicka

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