[Beginners Corner] - Reflection issue with jars in ear/lib directory in 4.2.0CR2
by mexcell
Using 4.2.0CR2.
I am using TestNG from within a Stateless Session Bean. The TestNG jar for jdk1.5 is in the ear/lib directory, and I can import the main TestNG class just fine, so I know it is actually on the classpath. TestNG uses reflection internally to load and instantiate some TestRunners, etc. I get:
java.lang.NoSuchMethodException: org.testng.internal.annotations.JDK15AnnotationFinder.<init>(org.testng.internal.annotations.IAnnotationTransformer)
| java.lang.Class.getConstructor0(Class.java:2647)
| java.lang.Class.getConstructor(Class.java:1629)
| org.testng.internal.ClassHelper.createJdkAnnotationFinder(ClassHelper.java:175)
| org.testng.TestNG.initializeAnnotationFinders(TestNG.java:692)
| org.testng.TestNG.run(TestNG.java:701)
|
The relevant section of ClassHelper.java is:
| try {
| Class clazz= forName(JDK5_ANNOTATIONFINDER_CLASS);
| Constructor ctor= clazz.getConstructor(new Class[] {IAnnotationTransformer.class});//Exception here
| return (IAnnotationFinder) ctor.newInstance(new Object[] {annoTransformer});
| }
| catch(Exception ex) {
| throw new TestNGException("Cannot create/initialize the JDK5 annotation finder " + JDK5_ANNOTATIONFINDER_CLASS, ex);
| }
|
Please note that I added the comment showing which line throws the exception (line 175)
It works fine when called from the web context if the jar is in WEB-INF/lib, but that doesn't meet our needs.
According to http://jira.jboss.com/jira/browse/JBAS-4037 the lib directory within an ear should work as defined in the EE5 spec - Does that not include reflection? (Or is this a bug?)
Thanks in advance for any help you can supply.
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14 years, 7 months
[JBoss Seam] - Problem with FacesMessages
by nstoddar
I'm having a problem with FacesMessages. I have a pageflow where on a transition I execute a validation method that adds a message to the FacesMessages object. The "to" for the transition is a decision node that calls a method that is trying to determine if there are FacesMessages present and transition based on that logic ... (sorry -- wordy explanation).
My problem is that the FacesMessage object is returning an empty list for getCurrentMessages() and getCurrentGlobalMessages() -- I can set a breadpoint and see my message sitting there in its member variable list, but I always get an empty list from FacesMessages when I invoke either of those two methods.
When I add the message directly to the FacesContext, FacesMessages correctly returns me a non-empty list, but the messages aren't visible after the redirect to the next page in my pageflow.
Am I doing something incorrect here? I was expecting FacesMessages to show me the message I just added to it....
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14 years, 7 months
[EJB 3.0] - New to EJB3 -- Please help
by chensquare
Hi all,
I'm new to EJB. I'm writing a toy EJB, and having problem running the client (bean can be deployed successfully in Eclipse) When running the client, it generates javax.naming.NameNotFoundException: HelloBean not bound.
Please help. THANKS A LOT!!!
my config:
IDE: Eclipse
JBOSS: 4.0.5
//INTERFACE:
package examples.session.stateless;
import javax.ejb.*;
public interface Hello {
public String hello() ; //throws java.rmi.RemoteException;
}
//BEAN CLASS
package examples.session.stateless;
import javax.ejb.Remote;
import javax.ejb.Stateless;
import javax.ejb.*;
@Stateless
@Remote(Hello.class)
public class HelloBean implements Hello {
public String hello () {
System.out.println("in hello()...");
return "Hello, World!";
}
}
EJB-JAR.XML
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar id="ejb-jar_ID" version="2.1" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
JBoss Hello World Application
<display-name>HelloBean</display-name>
<enterprise-beans>
<ejb-name>HelloBean</ejb-name>
</enterprise-beans>
</ejb-jar>
CLIENT
package examples.session.stateless;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
public class HelloEJBClient {
public static void main( String [] args )
{
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
env.put(Context.PROVIDER_URL, "localhost:1099");
env.put("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");
try
{
InitialContext ctx = new InitialContext(env);
Hello hello = (Hello) ctx.lookup( "HelloBean" );
System.out.println(hello.hello());
}
catch ( Exception e )
{
e.printStackTrace();
System.out.println( "Chen - Exception: " + e.getMessage() );
}
}
}
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14 years, 7 months
[EJB 3.0] - Is it *safe* ?
by johnmm1997
Currently I'm evaluating the ejb3 embedded for a standalone system that only need ORM, messaging and transactions- the javee5 features looks really nice (compare to 1.4)
I'm running into lots of different problems.
I don't know if their "my" problems, or in the ejb3, and there are no clear documents on how to make it work, so it's hard for me to break in..
I guess, the "beta" status is a little bit scary for me-
If i need to release the system in a month or so, is it safe to relay on the ejb3 embedded?
I just read in the forum that ejb3 embedded is actually coupled with jboss5, does it mean that the ejb3 will only be in production state when jboss5 will?
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14 years, 7 months