EJBContainer et initialisation de context

Version imprimable

Bonjour,

J'utilise Glassfish 3.1 et eclipse 3.6.2. Je souhaite faire une appli en associant JPA + EJB 3 + GWT.
Mon problème est que j'arrive pas à accéder aux EJBs. J'essaie d'initialiser mon context avec un EJBContainer comme ceci :
Code:

1 2 3 4 5 6 7 8 9 10 11 Map<String, Object> properties = new HashMap<String, Object>(); properties.put(EJBContainer.MODULES, new File("target/classes")); ejbContainer = EJBContainer.createEJBContainer( properties ); Context ctx = ejbContainer.getContext(); try { sg1AffaireService = (AffaireBeanLocal) ctx.lookup( "java:global/ejb/" + AffaireBean.class.getSimpleName() ); } catch (NamingException e) { e.printStackTrace(); }
Mais j'obtiens l'erreur :

com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.String org.jboss.tools.gwt.client.GreetingService.greetServer(java.lang.String) throws java.lang.IllegalArgumentException' threw an unexpected exception: java.lang.NullPointerException
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at org.glassfish.web.loader.WebappClassLoader.findResources(WebappClassLoader.java:1073)
at org.glassfish.web.loader.WebappClassLoader.getResources(WebappClassLoader.java:1312)
at java.util.ServiceLoader$LazyIterator.hasNext(ServiceLoader.java:323)
at java.util.ServiceLoader$1.hasNext(ServiceLoader.java:415)
at javax.ejb.embeddable.EJBContainer.createEJBContainer(EJBContainer.java:125)
at org.jboss.tools.gwt.server.GreetingServiceImpl.greetServer(GreetingServiceImpl.java:50)
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 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
... 30 more

Je n'arrive pas à comprendre ce que l'on doit mettre au niveau du new Files :

Code:

properties.put(EJBContainer.MODULES, new File("target/classes"));

et au niveau du lookup :

Code:

ctx.lookup( "java:global/ejb/" + AffaireBean.class.getSimpleName() );

Est ce que quelqu'un pourrait m'aider svp!

Merci d'avance

17/11/2011, 15h36
abdelhadi008
je ne sais pas ci je peux t'aider car jutilise Jboss mais en ce qui me concerne

pour l 'Ejb je mis
Code:

1 2 3 Context ctx = new InitialContext(); SessionRemote session = (SessionRemote)ctx.lookup("java:global/jboss-as-Devise/SessionStatFull");
ici SessionRemote c'est mon interface Remote

jboss-as-Devise c'est le nom de mon projet au deployement déclaré dans le pom.xml

et sessionStatFull c'est mon Ejb stateful
17/11/2011, 15h40
roulian46

Je vais surement poser une question bête pour les chevronné de JEE mais personnellement je n'ai pas fait de fichier pom.xml.
Est-il obligatoire pour n'importe quel projet =?

Pourrais-tu me copier-coller le tien dans ce post ou en privé en m'expliquant vite fait chaque partie?

Merci d'avance

Avec plaisir
meme si je suis encore débutant en JEE :mouarf:

voila mon pom.xml qui se trouve dans la racine du projet et si pour JBoss je pense que pour les autre tu aurra quelque chose qui lui resemble on ce qui me concerne il suffit de modifier la valeur de :

Code:

<artifactId>jboss-as-Devise</artifactId>

Code:

<finalName>jboss-as-Devise</finalName>

par le nom de ton projet bon voila le code complet de mon fichier pom.xml

Code:

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<?xml version="1.0" encoding="ISO-8859-1"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <groupId>org.jboss.as.quickstarts</groupId>
   <artifactId>jboss-as-Devise</artifactId>
   <version>7.0.0.Final</version>
   <packaging>war</packaging>
   <name>JBoss AS Quickstarts: Login</name>
 
   <url>http://jboss.org/jbossas</url>
   <licenses>
      <license>
         <name>GNU Lesser General Public License</name>
         <url>http://www.gnu.org/copyleft/lesser.html</url>
         <distribution>repo</distribution>
      </license>
   </licenses>
 
   <properties>
      <!-- Explicitly declaring the source encoding eliminates the following 
         message: -->
      <!-- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered 
         resources, i.e. build is platform dependent! -->
      <project.build.sourceEncoding>ISO-8859-1</project.build.sourceEncoding>
   </properties>
 
   <!-- Include the JBoss Maven repository so we can access JBoss artifacts -->
   <repositories>
      <repository>
         <id>jboss-public-repository</id>
         <name>JBoss Repository</name>
         <url>https://repository.jboss.org/nexus/content/groups/public</url>
         <releases>
            <enabled>true</enabled>
         </releases>
         <snapshots>
            <enabled>false</enabled>
         </snapshots>
      </repository>
   </repositories>
 
   <pluginRepositories>
      <pluginRepository>
         <id>jboss-public-repository</id>
         <name>JBoss Repository</name>
         <url>https://repository.jboss.org/nexus/content/groups/public</url>
         <releases>
            <enabled>true</enabled>
         </releases>
         <snapshots>
            <enabled>false</enabled>
         </snapshots>
      </pluginRepository>
   </pluginRepositories>
 
   <dependencyManagement>
      <dependencies>
         <!-- Define the version of JBoss' Java EE 6 APIs we want to import. 
            Any dependencies from org.jboss.spec will have their version defined by this 
            BOM -->
         <!-- JBoss distributes a complete set of Java EE 6 APIs including 
            a Bill of Materials (BOM). A BOM specifies the versions of a "stack" (or 
            a collection) of artifacts. We use this here so that we always get the correct 
            versions of artifacts. Here we use the jboss-javaee-web-6.0 stack (you can 
            read this as the JBoss stack of the Java EE Web Profile 6 APIs), and we use 
            version 2.0.0.Beta1 which is the latest release of the stack. You can actually 
            use this stack with any version of JBoss AS that implements Java EE 6, not 
            just JBoss AS 7! -->
         <dependency>
            <groupId>org.jboss.spec</groupId>
            <artifactId>jboss-javaee-web-6.0</artifactId>
            <version>2.0.0.Final</version>
            <type>pom</type>
            <scope>import</scope>
         </dependency>
      </dependencies>
   </dependencyManagement>
 
   <dependencies>
 
      <!-- Import the CDI API, we use provided scope as the API is included 
         in JBoss AS 7 -->
      <dependency>
         <groupId>javax.enterprise</groupId>
         <artifactId>cdi-api</artifactId>
         <scope>provided</scope>
      </dependency>
 
      <!-- Import the Common Annotations API (JSR-250), we use provided scope 
         as the API is included in JBoss AS 7 -->
      <dependency>
         <groupId>org.jboss.spec.javax.annotation</groupId>
         <artifactId>jboss-annotations-api_1.1_spec</artifactId>
         <scope>provided</scope>
      </dependency>
 
      <!-- Import the JSF API, we use provided scope as the API is included 
         in JBoss AS 7 -->
      <dependency>
         <groupId>org.jboss.spec.javax.faces</groupId>
         <artifactId>jboss-jsf-api_2.0_spec</artifactId>
         <scope>provided</scope>
      </dependency>
 
      <!-- Import the JPA API, we use provided scope as the API is included 
         in JBoss AS 7 -->
      <dependency>
         <groupId>org.hibernate.javax.persistence</groupId>
         <artifactId>hibernate-jpa-2.0-api</artifactId>
         <scope>provided</scope>
      </dependency>
 
      <!-- Import the JPA API, we use provided scope as the API is included 
         in JBoss AS 7 -->
      <dependency>
         <groupId>org.jboss.spec.javax.transaction</groupId>
         <artifactId>jboss-transaction-api_1.1_spec</artifactId>
         <scope>provided</scope>
      </dependency>
 
      <!-- Import the EJB API, we use provided scope as the API is included 
         in JBoss AS 7 -->
      <dependency>
         <groupId>org.jboss.spec.javax.ejb</groupId>
         <artifactId>jboss-ejb-api_3.1_spec</artifactId>
         <scope>provided</scope>
      </dependency>
 
<dependency>
         <groupId>org.jboss.spec.javax.servlet</groupId>
         <artifactId>jboss-servlet-api_3.0_spec</artifactId>
         <scope>provided</scope>
      </dependency>
<!-- <dependency>
         <groupId>jboss.web</groupId>
         <artifactId>servlet-api</artifactId>
         <version>3.0.0.alpha-7</version>
      </dependency>
 
-->
   </dependencies>
 
   <build>
      <!-- Set the name of the war, used as the context root when the app 
         is deployed -->
      <finalName>jboss-as-Devise</finalName>
      <plugins>
         <plugin>
            <artifactId>maven-war-plugin</artifactId>
            <version>2.1.1</version>
            <configuration>
               <!-- Java EE 6 doesn't require web.xml, Maven needs to catch 
                  up! -->
               <failOnMissingWebXml>false</failOnMissingWebXml>
            </configuration>
         </plugin>
         <!-- JBoss AS plugin to deploy war -->
         <plugin>
            <groupId>org.jboss.as.plugins</groupId>
            <artifactId>jboss-as-maven-plugin</artifactId>
            <version>7.0.0.Final</version>
         </plugin>
         <!-- Compiler plugin enforces Java 1.6 compatibility and activates 
            annotation processors -->
         <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.1</version>
            <configuration>
               <source>1.6</source>
               <target>1.6</target>
            </configuration>
         </plugin>
      </plugins>
   </build>
 
</project>

17/11/2011, 16h15
roulian46

Est ce un projet Maven que tu as fait pour avoir un fichier pom.xml ou un projet "normal" et le pom.xml a été généré qd même?

Merci de ton aide.
17/11/2011, 16h34
abdelhadi008

C'est un projet que je déploie avec mvn afain d'avoir le .war qui sera éxecuter dans le serveur Jboss

Bon je n'ai tjs pas résolu mon problème.

Ce que je souhaite faire, c'est faire un projet EJB/JPA et un projet GWT qui fait appel aux EJB du premier projet.
Le problème est que dans le GWT, il n'arrive pas à travailler avec les EJB :

Ma sessionBean :
Code:

1 2 3 4 5 6 7 8 9 10 11 12 @Stateless( mappedName = "ejb/monBean", name = "ejb/monBean" ) public class SessionBean implements SessionBeanLocal { @PersistenceContext private EntityManager em; @Override public Sg1Affaire findAffaire( int id ) { Sg1Affaire affaire = em.find( Sg1Affaire.class, 1 ); return affaire; } }
le GWT faisant appel à la sessionBean :
Code:

1 2 3 4 5 try { sessionBeanLocal = (SessionBeanLocal) new InitialContext().lookup( "ejb/monBean" ); } catch (NamingException e) { e.printStackTrace(); }
Et j'obtiens l'erreur :

Citation:

GRAVE: WebModule[/gwtProject]Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.String jey.gwt.client.GreetingService.greetServer(java.lang.String) throws java.lang.IllegalArgumentException' threw an unexpected exception: java.lang.NoClassDefFoundError: ejb/SessionBeanLocal
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NoClassDefFoundError: ejb/SessionBeanLocal
at jey.gwt.server.GreetingServiceImpl.greetServer(GreetingServiceImpl.java:50)
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 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
... 30 more

Est ce que quelqu'un a une idée du problème svp?

Merci d'avance

21/11/2011, 14h32
roulian46

Une question de plus :
Comment intégrer un projet GWT dans un projet EAR?