Getting error while deploying EJB

[Kamal Kumawat]

Initially i was getting JNDI Naming Lookup Exception
nut when I added jars I am getting error shown below :

java.lang.NullPointerException
at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297)
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at app.test.SimpleBeanClient.runTest(SimpleBeanClient.java:11)
at app.test.SimpleBeanClient.main(SimpleBeanClient.java:19)
javax.naming.NamingException: Lookup failed for 'ejb/SimpleBeanJNDI' in SerialContext [Root exception is javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext [Root exception is java.lang.NullPointerException]]
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:442)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at app.test.SimpleBeanClient.runTest(SimpleBeanClient.java:11)
at app.test.SimpleBeanClient.main(SimpleBeanClient.java:19)
Caused by: javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext [Root exception is java.lang.NullPointerException]
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:276)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430)
... 3 more
Caused by: java.lang.NullPointerException
at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297)
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271)
... 4 more

I am GlasFish Tool bundel v3/EJBv3.0
Assuming that EJBv3.0 need no Entry in EJB-jar.xml

/** This is my Interface */
package app.demo;
import javax.ejb.*; 
@Remote 
public interface SimpleBean {
 	public String sayHello(String name);
}

/**This is my BeanImplementation *  */
package app.demo;
import javax.ejb.Stateless;
@Stateless(name="Example", mappedName="ejb/SimpleBeanJNDI") 
public class SimpleBeanImpl implements SimpleBean {
    public String sayHello(String name) { 	
        return "Hello " + name + "!"; 	
    } 
}
/**This is my Client **/
package app.test;
import javax.naming.InitialContext;
import app.demo.SimpleBean;
public class SimpleBeanClient {
	public void runTest() throws Exception {
		InitialContext ctx = new InitialContext();
		SimpleBean bean = (SimpleBean) ctx.lookup("ejb/SimpleBeanJNDI");
		String result = bean.sayHello("Run Succeessfully !!");
		System.out.println(result);
	}

	public static void main(String[] args) {
		try {
			SimpleBeanClient cli = new SimpleBeanClient();
			cli.runTest();

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}  

[devaka: added code tags]

[Ravi Kiran Va]

The better option is toprovide the same name for the bean and the MappedName and made a lookup with that .

It works that way .