Java Proxies problem

[Former Member]

When I was trying to do lookup for JNDI in my standalone application, I was replied with the following error...

"Cannot instantiate class: com.sap.engine.services.jndi.InitialContextFactoryImpl [Root exception is java.lang.ClassNotFoundException: com.sap.engine.services.jndi.InitialContextFactoryImpl"

Here is my code snippet

Properties p = System.getProperties();

p.put(Context.INITIAL_CONTEXT_FACTORY,"com.sap.engine.services.jndi.InitialContextFactoryImpl");

p.put(Context.PROVIDER_URL, "gbdci550.in.ibm.com:50300");

p.put(Context.SECURITY_PRINCIPAL, myusername);

p.put(Context.SECURITY_CREDENTIALS, mypassword);

Context ctx = new InitialContext(p);

queryOutHome = (FlightSeatAvailabilityQueryOut_PortTypeHome)

PortableRemoteObject.narrow(ctx.lookup("ejb/com/sap/FlightQuery"),FlightSeatAvailabilityQueryOut_PortTypeHome.class);

Here "FlightQuery" is application JNDI name.However I followed the documentation provided in SDN for building application.

Can any one assist me how can i call ejb from a standalone application.

Thanks

[Former Member]

Hi,

If you are using non-central AE,

then

To compile the Java proxy source code you have to apply several libraries, which you

will find on your non-central Adapter Framework installation:

aii_proxy_xirt.jar C:\usr\sap\J2E\JC00\j2ee\cluster\server0\bin\ext\com.sap.aii.proxy.xiruntime

aii_msg_runtime.jar C:\usr\sap\J2E\JC00\j2ee\cluster\server0\bin\ext\com.sap.aii.messaging.runtime

aii_utilxi_misc.jar C:\usr\sap\J2E\JC00\j2ee\cluster\server0\bin\ext\com.sap.xi.util.misc

guidgenerator.jar C:\usr\sap\J2E\JC00\j2ee\cluster\server0\bin\ext\com.sap.guid

The path is an example from an installation on a Windows server and may be

different in your environment.

Did you configured.

Regards

Chilla

[stefan_grube]

The class com.sap.engine.services.jndi.InitialContextFactoryImpl

should be in the lib sapj2eeclient.jar

Check the jar, if the class is inside (with Winzip) and check if the lib is applied to your Java program.

Stefan

[Former Member]

Hi,

Have you assigned library References to the project accurately.

Please refer this doc it might help:

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/d06315a6-e66e-2910-039c-ba8bbbd2...

Are you using the central J2EE Adapter Framework Instance.

If yes then you can try installing a non-central separate instance of it and add it to SLD and then try.

[Former Member]

Hi Sumit..

Thanks for u r response...

Currently we are using central Adapter Engine.So how can i configure an instance which refers a non-central adapter Engine? I followed the same documentation what u had provided. There u can observe the lookup() which caused an error..

How can i overcome this lookup problem?