Posted by WritesMessily on May 19, 2019; 4:09am
URL: https://discuss.asciidoctor.org/Error-running-asciidoctor-fopub-tp6928.html

I called fopub on a Docbook file generated from a fairly standard .adoc file which had
Asciimath stem blocks in it, and I got this error message.

May 18, 2019 11:35:26 P.M. org.apache.fop.events.LoggingEventListener processEvent
WARNING: Font "Symbol,normal,700" not found. Substituting with "Symbol,normal,400".
May 18, 2019 11:35:26 P.M. org.apache.fop.events.LoggingEventListener processEvent
WARNING: Font "ZapfDingbats,normal,700" not found. Substituting with "ZapfDingbats,normal,400".
Exception in thread "main" java.lang.NoClassDefFoundError: org/w3c/dom/events/CustomEvent
	at java.base/java.lang.Class.getDeclaredFields0(Native Method)
	at java.base/java.lang.Class.privateGetDeclaredFields(Class.java:3061)
	at java.base/java.lang.Class.getField0(Class.java:3246)
	at java.base/java.lang.Class.getField(Class.java:1997)
	at net.sourceforge.jeuclid.elements.JEuclidElementFactory.addClass(JEuclidElementFactory.java:146)
	at net.sourceforge.jeuclid.elements.JEuclidElementFactory.<clinit>(JEuclidElementFactory.java:186)
	at net.sourceforge.jeuclid.elements.generic.DocumentElement.createElementNS(DocumentElement.java:165)
	at org.apache.xml.utils.DOMBuilder.startElement(DOMBuilder.java:324)
	at org.apache.xml.serializer.ToXMLSAXHandler.closeStartTag(ToXMLSAXHandler.java:204)
	at org.apache.xml.serializer.ToSAXHandler.flushPending(ToSAXHandler.java:277)
	at org.apache.xml.serializer.ToXMLSAXHandler.startPrefixMapping(ToXMLSAXHandler.java:348)
	at org.apache.xalan.templates.ElemElement.constructNode(ElemElement.java:328)
	at org.apache.xalan.templates.ElemElement.execute(ElemElement.java:288)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:139)
	at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:393)
	at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:176)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemElement.constructNode(ElemElement.java:339)
	at org.apache.xalan.templates.ElemElement.execute(ElemElement.java:288)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:139)
	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 net.sourceforge.jeuclid.DOMBuilder.applyTransform(DOMBuilder.java:217)
	at net.sourceforge.jeuclid.DOMBuilder.createJeuclidDom(DOMBuilder.java:196)
	at net.sourceforge.jeuclid.layout.JEuclidView.<init>(JEuclidView.java:75)
	at net.sourceforge.jeuclid.fop.JEuclidElement.calculate(JEuclidElement.java:110)
	at net.sourceforge.jeuclid.fop.JEuclidElement.getDimension(JEuclidElement.java:122)
	at org.apache.fop.fo.flow.InstreamForeignObject.prepareIntrinsicSize(InstreamForeignObject.java:112)
	at org.apache.fop.fo.flow.InstreamForeignObject.getIntrinsicWidth(InstreamForeignObject.java:125)
	at org.apache.fop.layoutmgr.inline.AbstractGraphicsLayoutManager.getInlineArea(AbstractGraphicsLayoutManager.java:60)
	at org.apache.fop.layoutmgr.inline.AbstractGraphicsLayoutManager.getNextKnuthElements(AbstractGraphicsLayoutManager.java:116)
	at org.apache.fop.layoutmgr.inline.InlineLayoutManager.getNextKnuthElements(InlineLayoutManager.java:330)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.collectInlineKnuthElements(LineLayoutManager.java:700)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.getNextKnuthElements(LineLayoutManager.java:629)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextChildElements(BlockLayoutManager.java:141)
	at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:289)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:113)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:105)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextChildElements(BlockLayoutManager.java:141)
	at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:289)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:113)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:105)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextChildElements(BlockLayoutManager.java:141)
	at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:289)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:113)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:105)
	at org.apache.fop.layoutmgr.FlowLayoutManager.getNextChildElements(FlowLayoutManager.java:223)
	at org.apache.fop.layoutmgr.FlowLayoutManager.addChildElements(FlowLayoutManager.java:147)
	at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:116)
	at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:69)
	at org.apache.fop.layoutmgr.PageBreaker.getNextKnuthElements(PageBreaker.java:254)
	at org.apache.fop.layoutmgr.AbstractBreaker.getNextBlockList(AbstractBreaker.java:752)
	at org.apache.fop.layoutmgr.PageBreaker.getNextBlockList(PageBreaker.java:180)
	at org.apache.fop.layoutmgr.PageBreaker.getNextBlockList(PageBreaker.java:160)
	at org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:388)
	at org.apache.fop.layoutmgr.PageBreaker.doLayout(PageBreaker.java:114)
	at org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:138)
	at org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:267)
	at org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:130)
	at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:360)
	at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190)
	at org.apache.xml.serializer.ToXMLSAXHandler.endElement(ToXMLSAXHandler.java:261)
	at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1399)
	at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:393)
	at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:176)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1374)
	at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:393)
	at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:176)
	at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:393)
	at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:176)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemIf.execute(ElemIf.java:160)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:139)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:139)
	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
	at org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:139)
	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 org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:297)
	at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:126)
	at org.apache.fop.cli.Main.startFOP(Main.java:186)
	at org.apache.fop.cli.Main.main(Main.java:217)
Caused by: java.lang.ClassNotFoundException: org.w3c.dom.events.CustomEvent
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
	... 95 more

Does anyone know what went wrong?