[jboss-user] [JBoss Seam] - NPE when rendering PDF

[damatrix]

Hi,
I've just upgraded to Seam 2.0.Beta1 and JBoss 4.2.1.GA. However i realise that all my pdf facelets now throw a null pointer exception, which wasn't the case with Seam 1.2.1.GA. The error is as ff:


  | SEVERE: Error Rendering View[/infra/venuePlan.xhtml]
  | java.lang.NullPointerException
  |         at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:89)
  |         at com.lowagie.text.Image.getInstance(Image.java:460)
  |         at org.jboss.seam.pdf.ui.UIImage.createITextObject(UIImage.java:140)
  |         at org.jboss.seam.pdf.ui.ITextComponent.encodeBegin(ITextComponent.java:181)
  |         at org.jboss.seam.pdf.ui.ITextComponent.encode(ITextComponent.java:244)
  |         at org.jboss.seam.pdf.ui.ITextComponent.encodeChildren(ITextComponent.java:213)
  |         at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
  |         at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
  |         at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:577)
  |         at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
  |         at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233)
  |         at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
  |         at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
  |         at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
  |         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
  |         at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:87)
  |         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  |         at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:63)
  |         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  |         at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:46)
  |         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  |         at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
  |         at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
  |         at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:40)
  |         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  |         at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:63)
  |         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  |         at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:140)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  |         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  |         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  |         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |         at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
  |         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  |         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  |         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  |         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  |         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |         at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  |         at java.lang.Thread.run(Thread.java:619)
  | 
  | 

This is a sample facelet i've been trying to render


  | 
  | <p:document xmlns:p="http://jboss.com/products/seam/pdf"
  |             xmlns:f="http://java.sun.com/jsf/core"
  |             xmlns:ui="http://java.sun.com/jsf/facelets" title="Floor plan -#{venue.title}">        
  | <p:font size="16" style="bold" ><p:paragraph spacingAfter="10" alignment="center"><p:text value="Floor plan -#{venue.title}"/></p:paragraph></p:font>  
  | 
  | <p:image alignment="center" imageData="#{venue.plan}" height="300" width="500"/>
  | </p:document>
  | 

I've properly specified the DocumentServlet and the Seam Servlet Filter in web.xml, as well as added itext.jar and jboss-seam-pdf.jar in my WAR classpath, but to no avail. Can anyone help.

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