I'm getting NPE when trying to use EntityConverter with Seam 2.0.1 - JBoss
4.2.2.
I use <s:convertEntity /> in a facelets page. Below is the stack I get:
2008-02-05 14:43:09,862 DEBUG [org.jboss.seam.Component] seam component not
found: entityManager
| 2008-02-05 14:43:09,862 DEBUG [org.jboss.seam.util.Naming] JNDI
InitialContext
properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory,
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
| 2008-02-05 14:43:09,862 ERROR [STDERR] 5-Feb-2008 2:43:09 PM
com.sun.facelets.FaceletViewHandler handleRenderException
| SEVERE: Error Rendering View[/showpackages.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:585)
| 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:40)
| 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_$$_javassist_2.put(EntityLoader_$$_javassist_2.java)
| at
org.jboss.seam.ui.converter.EntityConverter.getAsString(EntityConverter.java:77)
| at
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getFormattedValue(HtmlBasicRenderer.java:469)
| at
com.sun.faces.renderkit.html_basic.MenuRenderer.renderOption(MenuRenderer.java:502)
| at
com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:757)
| at
com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:811)
| at
com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:335)
| at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
| at javax.faces.component.UIComponent.encodeAll(UIComponent.java:896)
My guess is that for some reasons the persistence context is not wired properly
with seam. In the components.xml I have:
<?xml version="1.0" encoding="UTF-8"?>
| <components xmlns="http://jboss.com/products/seam/components";
| xmlns:core="http://jboss.com/products/seam/core";
| xmlns:security="http://jboss.com/products/seam/security";
| xmlns:transaction="http://jboss.com/products/seam/transaction";
| 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/security
http://jboss.com/products/seam/security-2.0.xsd
| http://jboss.com/products/seam/transaction
http://jboss.com/products/seam/transaction-2.0.xsd
| http://jboss.com/products/seam/components
http://jboss.com/products/seam/components-2.0.xsd";>
|
| <component name="org.jboss.seam.core.init">
| <property name="myFacesLifecycleBug">true</property>
| <property name="jndiPattern">
| rdm-0.1-SNAPSHOT/#{ejbName}/local
| </property>
| <property name="debug">false</property>
| </component>
|
| <component name="org.jboss.seam.remoting.remoting">
| <property name="debug">false</property>
| </component>
|
| <core:managed-persistence-context name="entityManager"
| persistence-unit-jndi-name="java:/rdmEntityManagerFactory" />
|
| <core:manager conversation-timeout="120000"
| concurrent-request-timeout="500"
conversation-id-parameter="cid" />
|
| <transaction:ejb-transaction/>
| </components>
I noticed managed-persistence-context is no longer part of core XSD, could that
be related to the issue i'm having ?
Thanks,
-Guillaume
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