Remote EJB invocations using JNDI not working as Documented in Jboss 7.1.1

[donsenior]

I was trying to configure my client as in https://docs.jboss.org/author/display/AS71/EJB+invocations+from+a+remote+client+using+JNDI with no luck (No EJB receiver available for handling).

Anyway, I've get it working seting the jndi properties as follow:

java.naming.factory.initial=org.jboss.naming.remote.client.InitialContextFactory

java.naming.provider.url=remote://localhost:4447

jboss.naming.client.ejb.context=true

java.naming.factory.url.pkgs=org.jboss.ejb.client.naming

Is this configuration wrong or is just the documentation incomplete?

[ochaloup]

Hi Pablo,

the documentation should be complete. I guess that the problem is in the configuration.

The way of remote client properties definition should be used as it's described in the document. Then you need  jboss-ejb-client.properties file  within your app that has content similar to https://github.com/jbossas/jboss-as/blob/master/testsuite/integration/basic/src/test/resources/jboss-ejb-client.properties

Otherwise whether you want to use, let's say, obsolete variant of the remote client properties definition then you need to pass it directly to the InintialContext when you are creating it. I think that the answer for your question is covered in the thread https://community.jboss.org/message/748087#748087

[donsenior]

Hi!

As I said, I've followed the documentation step by step, I've created the jboss-ejb-client.properties and remove the jndi.properties, but it didn't work.

I've also looked onto the thread you suggest and I can see that Mike is doing as I do:

     public EJBClient() {

       // setup 'base' jndi properties - no jboss-ejb-client.properties being picked up from classpath!

       jndiProps = new Hashtable();

          jndiProps.put("java.naming.factory.initial","org.jboss.naming.remote.client.InitialContextFactory");

          jndiProps.put(InitialContext.PROVIDER_URL, "remote://localhost:4447");

          jndiProps.put("jboss.naming.client.ejb.context", true);

          // needed for remote access - remember to run add-user.bat

          jndiProps.put(Context.SECURITY_PRINCIPAL, "client");

          jndiProps.put(Context.SECURITY_CREDENTIALS, "password");

     }

I am missing something?

Thanks for your reply!

[ochaloup]

When you omit the solution described in the forum thread and you defines just jboss-ejb-client.properties and you define InitialContext in way like this:

Properties properties = new Properties();

properties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");

return new InitialContext(properties);

What exception do you get?

[donsenior]

Using:

jboss-ejb-client.properties

remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false

remote.connections=default

remote.connection.default.host=192.168.215.30

remote.connection.default.port=4447

remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=true

remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT=false

Context:

Properties props = new Properties();

		props.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
//		props.put(Context.SECURITY_PRINCIPAL, user);
//		props.put(Context.SECURITY_CREDENTIALS, pass);
		props.put("remote.connection.default.username", user);
		props.put("remote.connection.default.password", pass);

Context context = new InitialContext(props);

Error:

Exception in thread "main" javax.ejb.EJBAccessException: JBAS014502: Invocation on method: public abstract void com.package.mybeans.MyInteface.myMethod() of bean: MyBean is not allowed

With:

jboss-ejb-client.properties

remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false

remote.connections=default

remote.connection.default.host=192.168.215.30

remote.connection.default.port=4447

remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=true

remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT=true

Error:

ERROR connection - JBREM000200: Remote connection failed: javax.security.sasl.SaslException: Authentication failed: all available authentication mechanisms failed

WARN  ConfigBasedEJBClientContextSelector - Could not register a EJB receiver for connection to remote://192.168.215.30:4447

ERROR connection - JBREM000200: Remote connection failed: javax.security.sasl.SaslException: Authentication failed: all available authentication mechanisms failed

Exception in thread "main" java.lang.IllegalStateException: No EJB receiver available for handling [appName:myapp,modulename:mymodule,distinctname:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@d2368df

Same error if I use:

		props.put(Context.SECURITY_PRINCIPAL, user);
		props.put(Context.SECURITY_CREDENTIALS, pass);
//		props.put("remote.connection.default.username", user);
//		props.put("remote.connection.default.password", pass);

My EJB is annotated with:

@SecurityDomain("other")

@RolesAllowed({ "admin" })

And I have one user with that rol (the user and pass that I'm using to connect).

Removing the jboss-ejb-client.properties and using the mentioned jndi.properties works just fine!

[donsenior]

Well, the problem is that it doesn't like setting the user and pass in the initial context, by putting those properties in the jboss-ejb-client.properties works!!

The problem is that I don't know that values until runtime (I'm using masked input from standard input)...

Is there a proper way to achive this?

[ochaloup]

Maybe you could try to check the following wiki page where is more detailed info about remoting:

https://docs.jboss.org/author/display/AS71/Remote+EJB+invocations+via+JNDI+-+EJB+client+API+or+remote-naming+project

And then to your problem. Try to check this thread:

https://community.jboss.org/thread/177302

You'll need to use EJBClientContext.setSelector method which redefines currently defined InitialContext. It should be something like:

... creating InitialContext ...

Properties initProperties = new Properties();

properties.put(Context.URL_PKG_PREFIXES, PKG_INTERFACES);

initialContext = new InitialContext(initProperties);

...define props...

final EJBClientConfiguration ejbClientConfiguration = new PropertiesBasedEJBClientConfiguration(props);

final ConfigBasedEJBClientContextSelector selector = new ConfigBasedEJBClientContextSelector(ejbClientConfiguration);

ContextSelector<EJBClientContext> previousSelector = EJBClientContext.setSelector(selector);

[donsenior]

Great! That do the trick, this is my final code:

{code} 
Properties jndiProperties = new Properties();
jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
Context context = new InitialContext(jndiProperties);
Properties jbossProperties = new Properties();
jbossProperties.load(LoaderMain.class.getResourceAsStream("/jboss-ejb-client.properties"));
jbossProperties.put("remote.connection.default.username", user);
jbossProperties.put("remote.connection.default.password", pass);
final EJBClientConfiguration ejbClientConfiguration = new PropertiesBasedEJBClientConfiguration(jbossProperties);
// EJB client context selection is based on selectors. So let's create a ConfigBasedEJBClientContextSelector which uses our EJBClientConfiguration created in previous step
final ContextSelector<EJBClientContext> ejbClientContextSelector = new ConfigBasedEJBClientContextSelector(ejbClientConfiguration);
// Now let's setup the EJBClientContext to use this selector
EJBClientContext.setSelector(ejbClientContextSelector);
{code}

I was trying to avoid the use of jboss propietary classes, but I think that's not posible if I want to use EJB Client API, and dynamically configurate properties.

Thanks!

[chamzz]

I also have the same problem and this is my initialContext  getting way.I can;t figureout why it shows error as

Exception in thread "main" java.lang.IllegalStateException: No EJB receiver available for handling [appName:,modulename:EmployeeModule,distinctname:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@10f6d3

public static Context getInitialContext() throws NamingException {

if (initialContext == null) {

Properties properties = new Properties();

properties.put(Context.URL_PKG_PREFIXES, PKG_INTERFACES);

initialContext = new InitialContext(properties);

}

return initialContext;

}

[ochaloup]

hi chamzz,

the error says in general there is not possible to find the expected bean at the remote point. Do you have correctly set up the jboss-ejb-client.properties (with correct address, port and credentials)? Is the variable PKG_INTERFACES referring to the jboss naming context org.jboss.ejb.client.naming? Do you set up the ejb name to search correctly? Is the searched bean defined with remote interface to be exported for the ejb lookup?