Old PDF export (based on Apache FOP) fails on Java 25

2025-12-15 11:45:02,905 [qtp1381713434-60 - http://localhost:8080/xwiki/bin/export/Sandbox/WebHome?format=pdf&pdfcover=1&pdfcover=0&pdftoc=1&pdftoc=0&pdfheader=1&pdfheader=0&pdffooter=1&pdffooter=0&comments=1&comments=0&attachments=1&attachments=0] WARN  c.x.x.w.XWikiAction            - Uncaught exception: Error number 11015 in 11: Exception while exporting 
com.xpn.xwiki.XWikiException: Error number 11015 in 11: Exception while exporting
	at com.xpn.xwiki.web.ExportAction.render(ExportAction.java:102)
	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:637)
	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:339)
	at com.xpn.xwiki.web.LegacyActionServlet.service(LegacyActionServlet.java:111)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:723)
	at org.eclipse.jetty.ee11.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1393)
	at org.eclipse.jetty.ee11.servlet.ServletHolder.handle(ServletHolder.java:750)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1668)
	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:123)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:71)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:66)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:135)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:212)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.container.servlet.filters.internal.SafeRedirectFilter.doFilter(SafeRedirectFilter.java:106)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.container.servlet.filters.internal.ResolveRelativeRedirectFilter.doFilter(ResolveRelativeRedirectFilter.java:129)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.container.servlet.filters.internal.SourceURLResolverFilter.doFilter(SourceURLResolverFilter.java:177)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:208)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.eclipse.jetty.ee11.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:199)
	at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
	at org.eclipse.jetty.ee11.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1602)
	at org.eclipse.jetty.ee11.servlet.ServletChannel.dispatch(ServletChannel.java:868)
	at org.eclipse.jetty.ee11.servlet.ServletChannel.handle(ServletChannel.java:449)
	at org.eclipse.jetty.ee11.servlet.ServletHandler.handle(ServletHandler.java:470)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:546)
	at org.eclipse.jetty.ee11.servlet.SessionHandler.handle(SessionHandler.java:763)
	at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1224)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:148)
	at org.eclipse.jetty.server.Server.handle(Server.java:197)
	at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:720)
	at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:412)
	at org.eclipse.jetty.server.internal.HttpConnection$FillableCallback.succeeded(HttpConnection.java:1810)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
	at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:54)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:492)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.epcRunTask(AdaptiveExecutionStrategy.java:428)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:401)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:255)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:204)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:317)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:1009)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1239)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1194)
	at java.base/java.lang.Thread.run(Thread.java:1474)
Caused by: com.xpn.xwiki.XWikiException: Error number 12002 in 12: Exception while exporting pdf
	at com.xpn.xwiki.pdf.impl.PdfExportImpl.createException(PdfExportImpl.java:538)
	at com.xpn.xwiki.pdf.impl.PdfExportImpl.renderXSLFO(PdfExportImpl.java:281)
	at com.xpn.xwiki.pdf.impl.PdfExportImpl.exportXHTML(PdfExportImpl.java:232)
	at com.xpn.xwiki.pdf.impl.PdfExportImpl.exportHtml(PdfExportImpl.java:185)
	at com.xpn.xwiki.pdf.impl.PdfExportImpl.export(PdfExportImpl.java:171)
	at com.xpn.xwiki.web.ExportAction.export(ExportAction.java:224)
	at com.xpn.xwiki.web.ExportAction.render(ExportAction.java:99)
	... 61 common frames omitted
Caused by: javax.xml.transform.TransformerException: java.util.MissingResourceException: Error reading event-model.xml: org.xml.sax.SAXException: FWK005 parse may not be called while parsing.
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:790)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:395)
	at com.xpn.xwiki.internal.pdf.FOPXSLFORenderer.render(FOPXSLFORenderer.java:155)
	at com.xpn.xwiki.pdf.impl.PdfExportImpl.renderXSLFO(PdfExportImpl.java:277)
	... 66 common frames omitted
Caused by: java.util.MissingResourceException: Error reading event-model.xml: org.xml.sax.SAXException: FWK005 parse may not be called while parsing.
	at org.apache.fop.events.DefaultEventBroadcaster.loadModel(DefaultEventBroadcaster.java:89)
	at org.apache.fop.events.DefaultEventBroadcaster.getEventProducerModel(DefaultEventBroadcaster.java:113)
	at org.apache.fop.events.DefaultEventBroadcaster.createProxyFor(DefaultEventBroadcaster.java:141)
	at org.apache.fop.events.DefaultEventBroadcaster.getEventProducerFor(DefaultEventBroadcaster.java:128)
	at org.apache.fop.layoutmgr.BlockLevelEventProducer$Provider.get(BlockLevelEventProducer.java:46)
	at org.apache.fop.fo.FOElementMapping$PageSequenceMasterMaker.make(FOElementMapping.java:213)
	at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:283)
	at org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:179)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.closeStartTag(ToXMLSAXHandler.java:206)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToSAXHandler.flushPending(ToSAXHandler.java:250)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.startElement(ToXMLSAXHandler.java:648)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:519)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:376)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2736)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:635)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:113)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:551)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:890)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:826)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:137)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1225)
	at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:629)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:667)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:781)
	... 69 common frames omitted