Hello All,
I'm writing some sitemap logic for handling Oasis Document Format (ODF)
files. However, I've found what looks like a bug in Cocoon-2.1.10. I get a
NullPointerException when the ZipFileSerializer is preceded by the XInclude
transformer. I constructed a very simple sitemap and XML files, and have
been able to reproduce the problem. I'm using Cocoon 2.1.10 with JDK 1.5.
The problem was also reproduced on Cocoon 2.1.9 with JDK 1.4.
What's funny is that if I take the resultant XML file after the xinclude
transformation, and serialize with xml, and then run the zip file serializer
on that file... everything is fine. It doesn't look like an XML document
issue...
Please find relevant info below.... let me know if anything else is needed.
AJ
Here's a simple sitemap snippet to show the problem:
<!-- This works OK --->
<map:match pattern="no-pipeline-simple.zip">
<map:generate src="no_pipeline.xml"/>
<map:serialize type="zip"/>
</map:match>
<!-- This fails -->
<map:match pattern="simple.zip">
<map:generate src="simple_xi.xml"/>
<map:transform type="xinclude"/>
<map:serialize type="zip"/>
</map:match>
<!-- something to include -->
<map:match pattern="simple.xml">
<map:generate src="simple.xml"/>
<map:serialize type="xml"/>
</map:match>
Now I have two other files:
simple.xml: <simple>Hello</simple>
simple_xi.xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<zip:archive xmlns:zip="http://apache.org/cocoon/zip-archive/1.0";
xmlns:xi="http://www.w3.org/2001/XInclude"; >
<zip:entry name="content.xml" serializer="xml">
<xi:include href="cocoon:/simple.xml"/>
</zip:entry>
</zip:archive>
After executing the XInclude Transformer directly and saving the output, you
get this file (and running zip serializer just on this file works okay):
no_pipeline.xml:
<?xml version="1.0" encoding="ISO-8859-1"?><zip:archive
xmlns:zip="http://apache.org/cocoon/zip-archive/1.0";
xmlns:xi="http://www.w3.org/2001/XInclude";>
<zip:entry name="content.xml" serializer="xml">
<simple>Hello</simple>
</zip:entry>
</zip:archive>
===== Stack Trace =====
java.lang.NullPointerException:
Cocoon stacktrace[hide]
Failed to process pipeline
context://utils/oasis/sitemap.xmap - 55:40 <map:serialize type="zip">
context://utils/oasis/sitemap.xmap - 54:45 <map:transform type="xinclude">
context://utils/oasis/sitemap.xmap - 53:48 <map:generate>
context://utils/sitemap.xmap - 10:62 <map:mount>
context://sitemap.xmap - 879:66 <map:mount>
Java stacktrace[hide]
java.lang.NullPointerException
at
org.apache.cocoon.xml.AbstractXMLPipe.setDocumentLocator(AbstractXMLPipe.java:40)
at
org.apache.cocoon.components.sax.XMLTeePipe.setDocumentLocator(XMLTeePipe.java:113)
at
org.apache.cocoon.transformation.XIncludeTransformer$XIncludePipe.processXIncludeElement(XIncludeTransformer.java:476)
at
org.apache.cocoon.transformation.XIncludeTransformer$XIncludePipe.startElement(XIncludeTransformer.java:241)
at
org.apache.cocoon.xml.AbstractXMLPipe.startElement(AbstractXMLPipe.java:95)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
Source)
at
org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:315)
at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:334)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:326)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:367)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:481)
at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:121)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:235)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:177)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:253)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:235)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:177)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:253)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:235)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:177)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:253)
at org.apache.cocoon.Cocoon.process(Cocoon.java:699)
at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:789)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:960)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:806)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:218)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:300)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)
Java full stacktrace[hide]
org.apache.cocoon.ProcessingException: Failed to process pipeline
at <map:serialize type="zip"> -
file:/var/cocoon-2.1.10/webapp/utils/oasis/sitemap.xmap:55:40
at <map:transform type="xinclude"> -
file:/var/cocoon-2.1.10/webapp/utils/oasis/sitemap.xmap:54:45
at <map:generate> -
file:/var/cocoon-2.1.10/webapp/utils/oasis/sitemap.xmap:53:48
at <map:mount> - file:/var/cocoon-2.1.10/webapp/utils/sitemap.xmap:10:62
at <map:mount> - file:/var/cocoon-2.1.10/webapp/sitemap.xmap:879:66
at
org.apache.cocoon.ProcessingException.throwLocated(ProcessingException.java:145)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.handleException(AbstractProcessingPipeline.java:953)
at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:379)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:481)
at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:121)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:235)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:177)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:253)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:235)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:177)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:253)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:235)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:177)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:253)
at org.apache.cocoon.Cocoon.process(Cocoon.java:699)
at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:789)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:960)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:806)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:218)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:300)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)
Caused by: java.lang.NullPointerException
at
org.apache.cocoon.xml.AbstractXMLPipe.setDocumentLocator(AbstractXMLPipe.java:40)
at
org.apache.cocoon.components.sax.XMLTeePipe.setDocumentLocator(XMLTeePipe.java:113)
at
org.apache.cocoon.transformation.XIncludeTransformer$XIncludePipe.processXIncludeElement(XIncludeTransformer.java:476)
at
org.apache.cocoon.transformation.XIncludeTransformer$XIncludePipe.startElement(XIncludeTransformer.java:241)
at
org.apache.cocoon.xml.AbstractXMLPipe.startElement(AbstractXMLPipe.java:95)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
Source)
at
org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:315)
at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:334)
at
org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:326)
at
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:116)
at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:367)
... 47 more
