StreamCorruptedException looking up EJB

[charleschr]

Hi all,

Apologies if this has been answered a thousand times before. I checked these forums, newsgroups, etc. but didn't see an answer to my question.

I am using JBoss 3.2.2 and Sun JDK 1.3.1_07 on Windows XP Pro. I am able to start JBoss and all of the EJBs seem to deploy fine. However, when I try to do a lookup in my code, I get the following exception:

[NamingContext] Failed to connect to localhost:8080
javax.naming.CommunicationException: Failed to retrieve stub from server localhost:8080. Root exception is
java.io.StreamCorruptedException: Caught EOFException while reading the stream header
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:840)
at java.io.ObjectInputStream.(ObjectInputStream.java:163)
at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:197)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1181)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:514)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:507)
at javax.naming.InitialContext.lookup(InitialContext.java:345)
. . .

Here is the code I am using to do the lookup. The code is meant to be able to get a reference to an EJBObject of any type, whether Session or Entity. I should note that the code works fine on Weblogic 5.1:

private static final EJBObject getBean(String name, String home, String method, Object[] params)
{
EJBObject bean = null;

String addr = "";
String port = "";
String factory = "";
String protocol = "";

Context ctx = null;

try {
addr = MYServerProperties.getProp(MYServerProperties.KEY_APPSERVER_ADDRESS);
port = MYServerProperties.getProp(MYServerProperties.KEY_APPSERVER_PORT);
factory = MYServerProperties.getProp(MYServerProperties.KEY_CONTEXT_FACTORY);
protocol = MYServerProperties.getProp(MYServerProperties.KEY_CONTEXT_PROTOCOL);

if(addr == null || factory == null || protocol == null || port == null)
ctx = null;
else
{
Properties p = System.getProperties();
p.put(Context.INITIAL_CONTEXT_FACTORY, factory);
p.put(Context.PROVIDER_URL, protocol + "://" + addr + ":" + port);

ctx = new javax.naming.InitialContext(p);
}

if(ctx != null)
{
Object homeobj = ctx.lookup(name);
Class c = homeobj.getClass();

// get all interfaces implemented by this class
Class ifs[] = c.getInterfaces();
Class homeif = null;

// find the appropriate home interface
for(int i = 0; i < Array.getLength(ifs); i++)
{
if(ifs.getName().equals(home))
{
homeif = ifs;
break;
}
}

if(homeif != null)
{
// get the runtime class of all the parameters
Class ps[] = new Class[Array.getLength(params)];
for(int i = 0; i < Array.getLength(params); i++)
ps = params.getClass();

// get the method to call on the home interface
Method m = homeif.getMethod(method,ps);
if(m != null)
bean = (EJBObject)m.invoke(homeobj,params); // execute the method
}
}
}

catch(Exception ex) {
bean = null;
ex.printStackTrace();
}

finally {
return bean;
}
}

I'm sure there must be something simple I am not getting. Any hints you could give me would be greatly appreciated!

Chuck

[charleschr]

Well, my problem was very clearly that I was using the wrong port for the JNDI lookup. Right in front of my eyes and I didn't see it!