Problem with remote ejb calls and jboss client 7.1.3

[jahoshai]

I am currently evaluating jboss eap 6.0.1 which comes with Jboss AS 7.1.3.

My remote ejb look up is working fine but when I am invoking any remote ejb calls its throwing null pointer exception.

Error stack trace:

java.lang.NullPointerException
at org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver.<init>(RemotingConnectionEJBReceiver.java:102)
at org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver.<init>(RemotingConnectionEJBReceiver.java:90)
at org.jboss.ejb.client.EJBClientContext.registerConnection(EJBClientContext.java:347)
at org.jboss.naming.remote.client.ejb.RemoteNamingEjbClientContextSelector.getContext(RemoteNamingEjbClientContextSelector.java:60)
at org.jboss.naming.remote.client.ejb.RemoteNamingEjbClientContextSelector.getCurrent(RemoteNamingEjbClientContextSelector.java:46)
at org.jboss.naming.remote.client.ejb.RemoteNamingEjbClientContextSelector.getCurrent(RemoteNamingEjbClientContextSelector.java:15)
at org.jboss.ejb.client.EJBClientContext.getCurrent(EJBClientContext.java:228)
at org.jboss.ejb.client.EJBClientContext.requireCurrent(EJBClientContext.java:238)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:120)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:104)
at $Proxy6.addCustomer(Unknown Source)
at com.test.remote.RemoteCustomerTest.testCustomerService(RemoteCustomerTest.java:49)

This is how my EJB3 subsytem configuration looks like

<subsystem xmlns="urn:jboss:domain:ejb3:1.3">

            <session-bean>

                <stateless>

                    <bean-instance-pool-ref pool-name="slsb-strict-max-pool"/>

                </stateless>

                <stateful default-access-timeout="5000" cache-ref="simple"/>

                <singleton default-access-timeout="5000"/>

            </session-bean>

            <mdb>

                <resource-adapter-ref resource-adapter-name="hornetq-ra"/>

                <bean-instance-pool-ref pool-name="mdb-strict-max-pool"/>

            </mdb>

            <pools>

                <bean-instance-pools>

                    <strict-max-pool name="slsb-strict-max-pool" max-pool-size="20" instance-acquisition-timeout="5" instance-acquisition-timeout-unit="MINUTES"/>

                    <strict-max-pool name="mdb-strict-max-pool" max-pool-size="20" instance-acquisition-timeout="5" instance-acquisition-timeout-unit="MINUTES"/>

                </bean-instance-pools>

            </pools>

            <caches>

                <cache name="simple" aliases="NoPassivationCache"/>

                <cache name="passivating" passivation-store-ref="file" aliases="SimpleStatefulCache"/>

            </caches>

            <passivation-stores>

                <file-passivation-store name="file"/>

            </passivation-stores>

            <async thread-pool-name="default"/>

            <timer-service thread-pool-name="default">

                <data-store path="timer-service-data" relative-to="jboss.server.data.dir"/>

            </timer-service>

            <remote connector-ref="remoting-connector" thread-pool-name="default"/>

            <thread-pools>

                <thread-pool name="default">

                    <max-threads count="10"/>

                    <keepalive-time time="100" unit="milliseconds"/>

                </thread-pool>

            </thread-pools>

            <iiop enable-by-default="false" use-qualified-name="false"/>

        </subsystem>

I have come across a similar discussion https://community.jboss.org/thread/206049?start=0&tstart=0

I have tried with latest nightly build and still facing the same issue.

Is it a existing bug in the current release? Will it be fixed in the future 7.2 release?

[nickarls]

show the lookup code and related properties files

[jahoshai]

Sorry for the delay in response...

This is how our lookup code is:

public class RemoteHelper

{

    private static final String SYSPROP_SERVER_URL = "java.naming.provider.url";

    private static final String SYSPROP_CONTEXT_FACTORY = "java.naming.factory.initial";

    private static final String SYSPROP_SERVER_PRINCIPAL = "server.principal";

    private static final String SYSPROP_SERVER_PASSWORD = "server.password";

    private static final String SYSPROP_FACTORY_URL_PKGS = "java.naming.factory.url.pkgs";

    private static final String SYSPROP_SECURITY_AUTHENTICATION = "security.authentication";

    private static final String SERVER_TYPE = "server.type";

    private static Context ctx;

    private static Context getContext() throws Exception

    {

        if (ctx == null)

        {

            Hashtable<Object, Object> ht = new Hashtable<Object, Object>();

            ht.put(Context.INITIAL_CONTEXT_FACTORY, getProperty(SYSPROP_CONTEXT_FACTORY));

            ht.put(Context.PROVIDER_URL, getProperty(SYSPROP_SERVER_URL));

            if ("jboss".equals(getProperty(SERVER_TYPE)))

            {

                ht.put(Context.URL_PKG_PREFIXES, getProperty(SYSPROP_FACTORY_URL_PKGS));

                ht.put(Context.SECURITY_PRINCIPAL,"superadmin");

                ht.put(Context.SECURITY_CREDENTIALS,"superadmin");

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

                ht.put("jboss.naming.client.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT", "false");

                //ht.put("jboss.naming.client.connect.options.org.xnio.Options.SASL_DISALLOWED_MECHANISMS", "JBOSS-LOCAL-USER");

            }

            ctx = new InitialContext(ht);

        }

        return ctx;

    }

    public static Object getRemoteBean(String beanName)

    {

        Object obj;

        try

        {

            if ("jboss".equals(getProperty(SERVER_TYPE)) && beanName != null)

            {

                if("ReportServiceEJB".equals(beanName.split("#")[0]))

                    beanName = "ejb:reportApp/platform-ejb//"+beanName.split("#")[0]+"!"+beanName.split("#")[1];

                else

                    beanName = "ejb:mainApp/platform-ejb//"+beanName.split("#")[0]+"!"+beanName.split("#")[1];

                System.out.println("Bean Name: "+beanName);

            }

            obj = getContext().lookup(beanName);

        }

        catch (Exception e)

        {

            throw new RuntimeException(e);

        }

        return obj;

    }

}

Please find its related properties file..

### jndi.properties for remote clients - jboss

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

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

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

security.authentication=simple

Actually When I run this on JBoss client 7.1.1 it works fine... It throws null pointer exception when running with 7.1.3 client.

[wdfink]

Looks like that you mix different approaches to connect an EJB.

If you set the provider.url with "remote*" you are using the remote-naming project [1].

The 'ejb' prefix is from the (recommeded) new EJB client api [2].

Please read the documentation and check whether your client is setup correct.

Also notice that the remote-naming project does not support all features for EJB clients (i.e. clustering and loadbalancing)

[1] https://docs.jboss.org/author/display/AS72/Remote+EJB+invocations+via+JNDI+-+EJB+client+API+or+remote-naming+project

[2] https://docs.jboss.org/author/display/AS72/EJB+invocations+from+a+remote+client+using+JNDI

[jahoshai]

I have gone through the documents and made necessary changes.

private static Context getContext() throws Exception

    {

        if (ctx == null)

        {

            Hashtable<Object, Object> ht = new Hashtable<Object, Object>();

            if ("jboss".equals(getProperty(SERVER_TYPE)))

            {

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

            }

            ctx = new InitialContext(ht);

        }

        return ctx;

    }

My jboss-ejb-client.properties

endpoint.name=client-endpoint

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

remote.connections=default

remote.connection.default.host=localhost

remote.connection.default.port = 4447

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

remote.connection.default.username=superadmin

remote.connection.default.password=superadmin

Now it throws an error at invocation like this:

ERROR [Remoting "client-endpoint" read-1] (RemoteConnection.java:105) - JBREM000200: Remote connection failed: javax.security.sasl.SaslException: Authentication failed: all available authentication mechanisms failed

Error Stack Trace:

EJBCLIENT000025: No EJB receiver available for handling [appName:myApp, moduleName:platform-ejb, distinctName:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@359b46dc

java.lang.IllegalStateException: EJBCLIENT000025: No EJB receiver available for handling [appName:myApp, moduleName:platform-ejb, distinctName:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@359b46dc
at org.jboss.ejb.client.EJBClientContext.requireEJBReceiver(EJBClientContext.java:588)
at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:116)
at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:183)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:136)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:121)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:104)
at $Proxy6.addCustomer(Unknown Source)
at com.test.remote.RemoteCustomerTest.testCustomerService(RemoteCustomerTest.java:49)

please let me know if you need any other information.

[jahoshai]

Even the latest code works fine when I replace ejb client jar of 7.1.1 version.

Anyone please let me know is this is a bug in 7.1.3 version?

Thanks in advance...

[jahoshai]

I set the following property in jboss-ejb-client.properties and its working fine.

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

Thanks Wolf-Dieter for your help.