tuning ejb3 calling
hi ,
i got in project i call the ejb this way
Properties props = new Properties();
props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
props.setProperty("java.naming.provider.url", "jnp://192.168.0.10:1099");
props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");
props.setProperty("jnp.socket.Factory", "org.jnp.interfaces.TimedSocketFactory");
Context context = new InitialContext(props);
TraxManager TraxManager = (TraxManager)context.lookup("TraxService/remote");
the problem is that i got this line:
TraxManager TraxManager = (TraxManager)context.lookup("TraxService/remote");
instanciated in each of my managed bean .... (i'm using jsf) , it's not optimal like solution
so i have created a generic class :
package com.voipover.utils;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class EJBHomeFactory {
public static Object lookup(String jndiName) {
Context context = null;
try {
Properties props = new Properties();
props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
props.setProperty("java.naming.provider.url", "jnp://192.168.0.10:1099");
props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");
props.setProperty("jnp.socket.Factory", "org.jnp.interfaces.TimedSocketFactory");
context = new InitialContext(props);
//context = new InitialContext();
return context.lookup(jndiName);
} catch (NamingException ex) {
throw new IllegalStateException("Cannot connect to bean: " + jndiName + " Reason: " + ex, ex.getCause());
} finally {
try {
context.close();
} catch (NamingException ex) {
throw new IllegalStateException("Cannot close InitialContext. Reason: " + ex, ex.getCause());
}
}
}
}
so now i'm trying to call my service like that :
TraxManager TraxManager = (TraxManager) EJBHomeFactory.lookup("TraxService/remote");
but when i test receive the following error :
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) at java.lang.ClassLoader.loadClass(ClassLoader.java:299) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at org.jboss.remoting.loading.RemotingClassLoader.loadClassDelegate(RemotingClassLoader.java:106) at org.jboss.remoting.loading.RemotingClassLoader.loadClass(RemotingClassLoader.java:80) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at org.jboss.remoting.loading.ObjectInputStreamWithClassLoader.resolveProxyClass(ObjectInputStreamWithClassLoader.java:250) at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1500) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1463) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:119) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1755) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1717) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObjectVersion2_2(JavaSerializationManager.java:238) at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:138) at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:123) at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.versionedRead(MicroSocketClientInvoker.java:1215) at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:845) at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:160) at org.jboss.remoting.Client.invoke(Client.java:1708) at org.jboss.remoting.Client.invoke(Client.java:612) at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:60) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.proxy.remoting.IsLocalProxyFactoryInterceptor.invoke(IsLocalProxyFactoryInterceptor.java:72) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:62) at $Proxy0.createProxyBusiness(Unknown Source) at org.jboss.ejb3.proxy.objectfactory.session.SessionProxyObjectFactory.createProxy(SessionProxyObjectFactory.java:129) at org.jboss.ejb3.proxy.objectfactory.session.stateless.StatelessSessionProxyObjectFactory.getProxy(StatelessSessionProxyObjectFactory.java:79) at org.jboss.ejb3.proxy.objectfactory.ProxyObjectFactory.getObjectInstance(ProxyObjectFactory.java:156) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1447) at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1464) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:818) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:682) at javax.naming.InitialContext.lookup(InitialContext.java:351) at com.voipover.utils.EJBHomeFactory.lookup(EJBHomeFactory.java:23) at com.voipover.utils.vtraxClientTest.main(vtraxClientTest.java:35)
any idea?
and thanks a lot
