In my sitemap I have (for user authentication):
<map:match pattern="login/authuser.do">
<map:generate type="request"/>
<map:transform type="userdata"/>
<map:serialize type="xml"/>
</map:match>
The generator is the standard RequestParameter generator which is then transformed
using my own component (to
authenticate via our proprietary database).
The generator works fine on its own, and the transformer works fine from a static xml
file, but put them both together
and I get the following error:
Original Exception: java.lang.NullPointerException
at
org.apache.xalan.transformer.TransformerIdentityImpl.flushStartDoc(TransformerIdentityImpl.java:888)
at
org.apache.xalan.transformer.TransformerIdentityImpl.startPrefixMapping(TransformerIdentityImpl.java:931)
at
org.apache.cocoon.xml.AbstractXMLPipe.startPrefixMapping(AbstractXMLPipe.java:102)
at
org.apache.cocoon.serialization.AbstractTextSerializer$NamespaceAsAttributes.startPrefixMapping
(AbstractTextSerializer.java:429)
at
org.apache.cocoon.xml.AbstractXMLPipe.startPrefixMapping(AbstractXMLPipe.java:102)
at
org.apache.cocoon.xml.AbstractXMLPipe.startPrefixMapping(AbstractXMLPipe.java:102)
at
org.apache.cocoon.generation.RequestGenerator.generate(RequestGenerator.java:126)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline
(AbstractProcessingPipeline.java:545)
...
org.apache.cocoon.ProcessingException: Failed to execute pipeline.:
java.lang.NullPointerException
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline
(AbstractProcessingPipeline.java:551)
at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline
(AbstractCachingProcessingPipeline.java:214)
at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process
(AbstractProcessingPipeline.java:489)
at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:84)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:84)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:108)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:154)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:108)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:143)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:131)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:84)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:108)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:154)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:108)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:143)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307)
at org.apache.cocoon.Cocoon.process(Cocoon.java:640)
...
Any ideas why?
Paul.
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