Problems with Java Mapscript

[Luis Conti]

Thanks for your answer

I have tried IMAGETYPE png and IMAGETYPE gif,  but I still get the same error:

Exception in thread "main" java.lang.UnknownError: Unable to initialize image.
        at edu.umn.gis.mapscript.mapscriptJNI.mapObj_draw(Native Method)
        at edu.umn.gis.mapscript.mapObj.draw(mapObj.java:382)
        at es.gva.icv.jmapscript.DrawMap.main(DrawMap.java:43)

Thanks
Luis Conti