[NamespaceScanner] Cannot load package

[martin.krajci]

Hi All,

I'm using Jboss 4.2.1.GA, Seam 1.2.1.GA and sun faces. During the deployment I have the warning in the console:

11:57:57,642 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.core
11:57:57,652 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.drools
11:57:57,662 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.framework
11:57:57,662 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.jms
11:57:57,672 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.mail
11:57:57,682 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.security
11:57:57,682 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.theme
11:57:57,692 WARN [NamespaceScanner] Cannot load package Dinfo for org.jboss.se
am.web

My problem is that when I declare something in components.xml it is not read. The only components that are read are core components. But security, framework, spring, mail are alwas missing.

<?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:framework="http://jboss.com/products/seam/framework"
 xmlns:mail="http://jboss.com/products/seam/mail"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation=
 "http://jboss.com/products/seam/core http://jboss.com/products/seam/core-1.2.xsd
 http://jboss.com/products/seam/components http://jboss.com/products/seam/components-1.2.xsd
 http://jboss.com/products/seam/security http://jboss.com/products/seam/security-1.2.xsd
 http://jboss.com/products/seam/framework http://jboss.com/products/seam/framework-1.2.xsd
 http://jboss.com/products/seam/mail http://jboss.com/products/seam/mail-1.2.xsd">

 <core:init jndi-pattern="@jndiPattern@"/>
 <core:ejb installed="@embeddedEjb@"/>
 <core:dispatcher />

 <component name="org.jboss.seam.core.manager">
 <!-- half second wait for conversation lock on concurrent requests -->
 <property name="concurrentRequestTimeout">500</property>
 <!-- 20 minutes conversation timeout -->
 <property name="conversationTimeout">1200000</property>
 <property name="conversationIdParameter">cid</property>
 <property name="conversationIsLongRunningParameter">clr</property>
 </component>

 <security:identity authenticate-method="#{authenticator.authenticate}"/>

 <event type="org.jboss.seam.notLoggedIn">
 <action expression="#{redirect.captureCurrentView}"/>
 </event>

 <event type="org.jboss.seam.postAuthenticate">
 <action expression="#{redirect.returnToCapturedView}"/>
 </event>

 <!--
 <mail:mail-session host="mailcz.systinet.com" debug="true"/>
 <mail:mail-session host="localhost" port="2525" username="test" password="test" />
 <mail:mail-session session-jndi-name="java:/CechieMailService" debug="true"/>
 -->

</components>

In case on security the identity is unknown in JSF.

In case of spring the applicationContext.xml is not loaded.

<spring:context-loader context-locations="/WEB-INF/applicationContext.xml"/>

In case of mail the mail-session is not loaded in any case.

But in case of core components everyting works fine.

My components.xml is located in ear/war/WEB-INF and jboss-seam.jar in ear.

My application.xml

<?xml version="1.0" encoding="utf-8"?>
<application>
 <display-name>CechieApplication</display-name>
 <module>
 <web>
 <web-uri>cechie.war</web-uri>
 <context-root>/cechie</context-root>
 </web>
 </module>
 <module>
 <ejb>cechie.jar</ejb>
 </module>
 <module>
 <java>jboss-seam.jar</java>
 </module>
 <module>
 <java>commons-lang-2.1.jar</java>
 </module>
</application>

I suspect that warnings have something to do with it, but I have no idea what.

Can you please help me.

Thanx

Martin

[martin.krajci]

I just realized that fore core components the configuration is not working either. Only thing that is working is:

<component name="org.jboss.seam.core.manager">
 <!-- half second wait for conversation lock on concurrent requests -->
 <property name="concurrentRequestTimeout">500</property>
 <!-- 20 minutes conversation timeout -->
 <property name="conversationTimeout">1200000</property>
 <property name="conversationIdParameter">cid</property>
 <property name="conversationIsLongRunningParameter">clr</property>
 </component>

That doesn't have any namespace.

[pmuir]

You'll need to debug NamespaceScanner to find out why it's not able to load the package info. Alternatively just use the non-namespaced declarations.

[alexeinov]

I found out that the described effect occurs when JBoss is started with Sun's jdk1.5.0_12 JVM. Running it with JRockit 1.5 or with Sun's jdk1.6.0_2 does not lead to this problem.

Debugging of NameScanner have shown that the method getPackage() cannot obtain a package info.

 protected Package getPackage(String name)
 {
 try
 {
 Class c = classLoader.loadClass(name + ".package-info");
 return c != null ? c.getPackage() : null;
 }
 catch (Exception e)
 {
 return null;
 }
 }

The loadClass() method throw exceptions like this:

java.lang.ClassNotFoundException: org.jboss.seam.drools.package-info

As a result of this error no namespace-prefixed components are initialized in component.xml, after that lots of things go wrong. For instance, core:init component will be uninitialized, which makes that jndiPattern is not set, which in turn makes that no application components can be accessed in an EJB module.

[alexeinov]

Forgot to mention that Seam version that was used in the previous test was 1.2.1 GA

Now, I have tested deploying seam-booking demo from Seam 2.0.0 CR1, and the problem does not appear any more.