Details
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Bug
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Resolution: Fixed
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Low
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2.6-dr1, 2.6.0, 2.7.3, 2.8.1
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Tested on resin 3.0.24 but looks like the container is irrelevant.
Description
I think this problem may be specific to an older version of the dynamictasklist macro (1.5).
If you have a task list on a page which has no items then this will render HTML which has an empty 'ul' tag and this causes the following exception in the PDF Export.
2007-10-08 13:26:57,004 ERROR [Export Space task] [core.task.longrunning.AbstractLongRunningTask] doInTransactionWithoutResult Error during export
-- url: /spaces/doexportspace.action | userName: pcurren | action: doexportspace
com.atlassian.confluence.importexport.ImportExportException: Error while generating PDF!
at com.atlassian.confluence.importexport.impl.PdfExporter.foToPdf(PdfExporter.java:137)
at com.atlassian.confluence.importexport.impl.PdfExporter.doExportEntity(PdfExporter.java:98)
at com.atlassian.confluence.importexport.impl.AbstractRendererExporterImpl.exportSpace(AbstractRendererExporterImpl.java:127)
at com.atlassian.confluence.importexport.impl.AbstractRendererExporterImpl.doExport(AbstractRendererExporterImpl.java:109)
at com.atlassian.confluence.importexport.impl.PdfExporter.doExport(PdfExporter.java:63)
at com.atlassian.confluence.importexport.DefaultImportExportManager.exportAs(DefaultImportExportManager.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:287)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:181)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)
at $Proxy49.exportAs(Unknown Source)
at com.atlassian.confluence.importexport.actions.ExportSpaceLongRunningTask$2.doInTransactionWithoutResult(ExportSpaceLongRunningTask.java:87)
at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:33)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:114)
at com.atlassian.confluence.importexport.actions.ExportSpaceLongRunningTask.runInternal(ExportSpaceLongRunningTask.java:63)
at com.atlassian.confluence.util.longrunning.ConfluenceAbstractLongRunningTask.run(ConfluenceAbstractLongRunningTask.java:21)
at java.lang.Thread.run(Thread.java:613)
Caused by: javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: file:///Users/pcurren/Atlassian/data/confluence/cac/temp/export_10082007_131342/CONF256-20071008-13_13_42.fo:16961:0: Error(16961/0): fo:list-block is missing child elements.
Required Content Model: marker* (list-item)+
at com.icl.saxon.IdentityTransformer.transform(IdentityTransformer.java:61)
at com.atlassian.confluence.importexport.impl.PdfExporter.foToPdf(PdfExporter.java:132)
... 22 more
Caused by: org.apache.fop.fo.ValidationException: file:///Users/pcurren/Atlassian/data/confluence/cac/temp/export_10082007_131342/CONF256-20071008-13_13_42.fo:16961:0: Error(16961/0): fo:list-block is missing child elements.
Required Content Model: marker* (list-item)+
at org.apache.fop.fo.FONode.missingChildElementError(FONode.java:408)
at org.apache.fop.fo.flow.ListBlock.endOfNode(ListBlock.java:105)
at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:379)
at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:195)
at com.caucho.xml.XmlParser.addElement(XmlParser.java:2608)
at com.caucho.xml.XmlParser.parseElement(XmlParser.java:641)
at com.caucho.xml.XmlParser.parseNode(XmlParser.java:367)
at com.caucho.xml.XmlParser.parseInt(XmlParser.java:242)
at com.caucho.xml.AbstractParser.parse(AbstractParser.java:633)
at com.icl.saxon.IdentityTransformer.transform(IdentityTransformer.java:59)
... 23 more
While the fault is with the macro for rendering illegal HTML, the PDF export should probably be robust enough to cope.