DOMImplementation method not found

[Tobias . Soloschenko]

Hello,

when I try to export a pdf im receiving the error message:

java.lang.NoSuchMethodError: org.w3c.dom.DOMImplementation: method createDocument(Ljava/lang/String;Ljava/lang/String;Lorg/w3c/dom/DocumentType;)Lorg/w3c/dom/Document; not found
        at org.apache.fop.pdf.PDFMetadata.createXMPFromUserAgent(PDFMetadata.java:197)
        at org.apache.fop.render.pdf.PDFRenderer.startPageSequence(PDFRenderer.java:573)
        at org.apache.fop.area.RenderPagesModel.startPageSequence(RenderPagesModel.java:94)
        at org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:140)
        at org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:320)
        at org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:147)
        at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:357)
        at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:193)
        at org.apache.xml.serializer.ToXMLSAXHandler.endElement(ToXMLSAXHandler.java:261)
        at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1399)
        at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
        at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1374)
        at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
        at org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2281)
        at org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1367)
        at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:709)
        at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1284)
        at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1262)
        at de.timetoact.ntopdf.PDFTranslator.convertFileToPDF(PDFTranslator.java:84)
        at de.timetoact.ntopdf.PDFTranslator.convertFilesToPDF(PDFTranslator.java:110)
        at JavaAgent.NotesMain(JavaAgent.java:83)
        at lotus.domino.AgentBase.runNotes(Unknown Source)
        at lotus.domino.NotesThread.run(NotesThread.java:218)

I looked in my packages, the class is in the xml-apis.jar and it contains that class with that method ...
What could that be?!

Im using java 1.3 / fop0.92 beta

Thanks!