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Constantin Partac commented on TAP5-541: ---------------------------------------- I had the same issue but the cause was not an older version of woodstox but JBoss 4.2.2 (Andrej was right). The problem can be by adding the following system properties: javax.xml.stream.XMLInputFactory=com.ctc.wstx.stax.WstxInputFactory javax.xml.stream.XMLOutputFactory=com.ctc.wstx.stax.WstxOutputFactory javax.xml.stream.XMLEventFactory=com.ctc.wstx.stax.WstxEventFactory com.sun.xml.ws.api.streaming.XMLStreamReaderFactory.woodstox=true com.sun.xml.ws.api.streaming.XMLStreamWriterFactory.woodstox=true and by adding the following jars in lib folder of the JBoss server instace (not WEB-INF/lib where they are optional now): woodstox-core-asl-4.0.3.jar stax-api-1.0.1.jar stax2-api-3.0.1.jar > Regression: Parameter namespacePrefix was null > ---------------------------------------------- > > Key: TAP5-541 > URL: https://issues.apache.org/jira/browse/TAP5-541 > Project: Tapestry 5 > Issue Type: Bug > Components: tapestry-core > Affects Versions: 5.1 > Environment: Windows XP 5.1,x86, Java HotSpot(TM) Client VM > 1.5.0_15-b04,Sun Microsystems Inc., JBoss 4.2.3 > Reporter: Andrej Aschenbrenner > Assignee: Howard M. Lewis Ship > > I get an exception after switching to the new Tapestry 5.1.0.0 Version. > Relevant Template snippet: > <html xmlns="http://www.w3.org/1999/xhtml" > xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd"> > <head> > <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> > <title>${title}</title> > <meta name="version" content="${version}" /> > <link rel="stylesheet" type="text/css" > href="${asset:context:css/global.css}"/> > <link rel="stylesheet" type="text/css" title="Standard" > href="${asset:context:css/standard/style.css}"/> > </head> > ... > Exception StackTrace snippet: > 16:18:38,581 ERROR [Login] Render queue error in > CompositeRenderCommand[Start[http://www.w3.org/1999/xhtml html], > DefineNamespace[null http://www.w3.org/1999/xhtml], Text[ > ], Start[http://www.w3.org/1999/xhtml head], Text[ > ], Start[http://www.w3.org/1999/xhtml meta], AttributeNS[ http-equiv > "Content-Type"], AttributeNS[ content "text/html; charset=UTF-8"], End, Text[ > ], Start[http://www.w3.org/1999/xhtml title]]: Parameter namespacePrefix > was null. > java.lang.IllegalArgumentException: Parameter namespacePrefix was null. > at > org.apache.tapestry5.ioc.internal.util.Defense.notNull(Defense.java:37) > at org.apache.tapestry5.dom.Element.defineNamespace(Element.java:519) > at > org.apache.tapestry5.internal.services.MarkupWriterImpl.defineNamespace(MarkupWriterImpl.java:221) > at > org.apache.tapestry5.internal.pageload.PageLoaderImpl$4.render(PageLoaderImpl.java:341) > at > org.apache.tapestry5.internal.pageload.CompositeRenderCommand.render(CompositeRenderCommand.java:68) > at > org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:74) > at > org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:121) > at > $PageRenderQueue_11fb85075e4.render($PageRenderQueue_11fb85075e4.java) > at > $PageRenderQueue_11fb85075db.render($PageRenderQueue_11fb85075db.java) > at > org.apache.tapestry5.internal.services.MarkupRendererTerminator.renderMarkup(MarkupRendererTerminator.java:37) > ... > For me it seems that Tapestry requires a namespace declaration on the <title> > tag. But I have already the default namespace declaration on > the <html xmlns="http://www.w3.org/1999/xhtml"> tag. > P.S. with only <html > xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd"> it fails > also. But it did work on Tapestry 5.0.18 > Thanks, > Andrej Aschenbrenner -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.