NullPointerException in JXFormsGenerator.java

Jonathan Spaeth Sat, 28 Jun 2003 19:30:21 -0700

Title: NullPointerException in JXFormsGenerator.java

To all concerned

I have come across a problem using the jxforms transformer.
I desire to create jxform documents dynamically via the sql transformer and an xslt.

I can compose a proper jxforms document using a base xml document, the sql transformer, and and the xslt page.
I know this because when I save this file and expose it in the sitemap using the jxforms Generator, it properly generates the form.

However, when I chain the output of the xslt directly to the jxforms transformer, a NullPointerException is thrown.
It seems to have something to do with a SAX helper object called a Locator which is null.

Has anybody reported this behavior before?

I can provide much more detailed information if necessary.

Thanks for the help and support,
Jon

Here is my stacktrace:
FATAL_E (2003-06-28) 21:21.24:079 [core.xslt-processor] (/cocoon/apps/monitored-customers/) HttpProcessor[80][4]/TraxErrorHandler: Error in TraxTransformer: file:/C:/java/jakarta-tomcat-4.0.6/webapps/cocoon/apps/monitored-customers/xsl/viewAll.xsl; Line 0; Column 0;

; SystemID: file:/C:/java/jakarta-tomcat-4.0.6/webapps/cocoon/apps/monitored-customers/xsl/viewAll.xsl
javax.xml.transform.TransformerException: java.lang.NullPointerException
        at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2323)
        at org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2185)
        at org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1263)
        at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3329)
        at org.apache.xalan.transformer.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:427)
        at org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91)
        at org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529)
        at org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91)
        at org.apache.cocoon.transformation.AbstractSAXTransformer.endDocument(AbstractSAXTransformer.java:309)
        at org.apache.cocoon.components.sax.XMLTeePipe.endDocument(XMLTeePipe.java:102)
        at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown Source)
        at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
        at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
        at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
        at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
        at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
        at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
        at org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
        at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140)
        at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:292)

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:108)

at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108)

        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:324)
        at org.mozilla._javascript_.NativeJavaMethod.call(NativeJavaMethod.java:230)
        at org.mozilla._javascript_.ScriptRuntime.call(ScriptRuntime.java:1244)
        at org.mozilla._javascript_.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:1087)
        at org.mozilla._javascript_.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:173)
        at org.mozilla._javascript_.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:121)
        at org.mozilla._javascript_.continuations.InterpretedFunctionImpl.call(InterpretedFunctionImpl.java:121)
        at org.mozilla._javascript_.ScriptRuntime.call(ScriptRuntime.java:1244)
        at org.apache.cocoon.components.flow._javascript_._javascript_Interpreter.callFunction(_javascript_Interpreter.java:583)

at org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke(CallFunctionNode.java:196)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84)

        at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162)
        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:628)
        at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1139)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
        at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
        at java.lang.Thread.run(Thread.java:534)
Caused by: java.lang.NullPointerException
        at org.xml.sax.helpers.LocatorImpl.<init>(Unknown Source)
        at org.apache.cocoon.generation.JXFormsGenerator$Event.<init>(JXFormsGenerator.java:245)
        at org.apache.cocoon.generation.JXFormsGenerator$StartDocument.<init>(JXFormsGenerator.java:286)
        at org.apache.cocoon.generation.JXFormsGenerator$Parser.startDocument(JXFormsGenerator.java:932)
        at org.apache.cocoon.xml.AbstractXMLPipe.startDocument(AbstractXMLPipe.java:83)
        at org.apache.xml.serializer.ToSAXHandler.startDocumentInternal(ToSAXHandler.java:127)
        at org.apache.xml.serializer.ToSAXHandler.flushPending(ToSAXHandler.java:289)
        at org.apache.xml.serializer.ToXMLSAXHandler.startElement(ToXMLSAXHandler.java:652)
        at org.apache.xml.serializer.ToXMLSAXHandler.startElement(ToXMLSAXHandler.java:508)
        at org.apache.xalan.transformer.ClonerToResultTree.cloneToResultTree(ClonerToResultTree.java:196)
        at org.apache.xalan.templates.ElemCopy.execute(ElemCopy.java:146)
        at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:425)
        at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:215)
        at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2318)
        ... 121 more
---------
java.lang.NullPointerException
        at org.xml.sax.helpers.LocatorImpl.<init>(Unknown Source)
        at org.apache.cocoon.generation.JXFormsGenerator$Event.<init>(JXFormsGenerator.java:245)
        at org.apache.cocoon.generation.JXFormsGenerator$StartDocument.<init>(JXFormsGenerator.java:286)
        at org.apache.cocoon.generation.JXFormsGenerator$Parser.startDocument(JXFormsGenerator.java:932)
        at org.apache.cocoon.xml.AbstractXMLPipe.startDocument(AbstractXMLPipe.java:83)
        at org.apache.xml.serializer.ToSAXHandler.startDocumentInternal(ToSAXHandler.java:127)
        at org.apache.xml.serializer.ToSAXHandler.flushPending(ToSAXHandler.java:289)
        at org.apache.xml.serializer.ToXMLSAXHandler.startElement(ToXMLSAXHandler.java:652)
        at org.apache.xml.serializer.ToXMLSAXHandler.startElement(ToXMLSAXHandler.java:508)
        at org.apache.xalan.transformer.ClonerToResultTree.cloneToResultTree(ClonerToResultTree.java:196)
        at org.apache.xalan.templates.ElemCopy.execute(ElemCopy.java:146)
        at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:425)
        at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:215)
        at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2318)
        at org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2185)
        at org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1263)
        at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3329)
        at org.apache.xalan.transformer.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:427)
        at org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91)
        at org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529)
        at org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91)
        at org.apache.cocoon.transformation.AbstractSAXTransformer.endDocument(AbstractSAXTransformer.java:309)
        at org.apache.cocoon.components.sax.XMLTeePipe.endDocument(XMLTeePipe.java:102)
        at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown Source)
        at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
        at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
        at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
        at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
        at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
        at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
        at org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
        at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140)
        at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:292)

at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:489)

NullPointerException in JXFormsGenerator.java

Reply via email to