EntityConverter NullPointerException
I am trying to setup seam to use
<s:entityConverter/>
in my application but I keep getting the exception at the bottom. My question is how do I setup my components.xml to use this feature for my dropdown, select and radio boxes as I use a lot of these in my application.
My Environment:
Seam 2.0.2
JSF 1.2
Hibernate3
Apache Tomcat 6.0.20
This is my Component.xml as at the moment:
<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
xmlns:core="http://jboss.com/products/seam/core"
xmlns:persistence="http://jboss.com/products/seam/persistence"
xmlns:transaction="http://jboss.com/products/seam/transaction"
xmlns:web="http://jboss.com/products/seam/web"
xmlns:security="http://jboss.com/products/seam/security"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=
"http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.0.xsd
http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.0.xsd
http://jboss.com/products/seam/transaction http://jboss.com/products/seam/transaction-2.0.xsd
http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.0.xsd
http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.0.xsd">
<core:manager conversation-timeout="120000"
concurrent-request-timeout="500"
conversation-id-parameter="cid"/>
<core:init debug="false" jndi-pattern="java:comp/env/jdbc/TestDB" />
<transaction:entity-transaction entity-manager="#{em}"/>
<persistence:managed-persistence-context name="em"
auto-create="true"
entity-manager-factory="#{DwManagerPU}" />
<persistence:entity-manager-factory name="DwManagerPU"
persistence-unit-name="DownloadManagerPU" auto-create="true" startup="true"/>
<component name="org.jboss.seam.ui.EntityConverter">
<property name="entityManager">#{em}</property>
</component>
<security:identity authenticate-method="#{loginWorker.login}"/>
<web:multipart-filter create-temp-files="true" max-request-size="100000000" url-pattern="*.seam"/>
<core:resource-loader bundle-names="messages application"/>
</components>This is how I am using it
<h:selectOneListbox value="#{documentAction.document.categoryId}" required="true" id="document_cat" name="document_cat" styleClass="small-input">
<s:selectItems value="#{documentAction.categories}"
var="category"
noSelectionLabel="Please Select..."
label="#{category.categoryDesc}"/>
<s:convertEntity />
</h:selectOneListbox>And This is the exception I am getting
SEVERE: Error Rendering View[/pages/createDocument.xhtml] java.lang.NullPointerException at org.jboss.seam.ui.converter.entityConverter.EntityLoader.getPersistenceContext(EntityLoader.java:30) at org.jboss.seam.ui.converter.entityConverter.EntityLoader.getPersistenceContext(EntityLoader.java:24) at org.jboss.seam.ui.converter.entityConverter.AbstractEntityLoader.put(AbstractEntityLoader.java:46) 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:597) at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:38) at org.jboss.seam.util.Work.workInTransaction(Work.java:41) at org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:32) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:166) at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:102) at org.jboss.seam.ui.converter.entityConverter.EntityLoader_$$_javassist_3.put(EntityLoader_$$_javassist_3.java) at org.jboss.seam.ui.converter.EntityConverter.getAsString(EntityConverter.java:77) at org.jboss.seam.ui.converter.PrioritizableConverter.getAsString(PrioritizableConverter.java:67) at org.jboss.seam.ui.converter.ConverterChain.getAsString(ConverterChain.java:123) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getFormattedValue(HtmlBasicRenderer.java:448) at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOption(MenuRenderer.java:480) at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:759) at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:819) at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:280) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:856) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:281) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:220) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:215) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:832) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:942) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:942) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:109) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:510) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) at java.lang.Thread.run(Thread.java:619)
