Problem With JNDI LookUp

[Former Member]

hi,

i have two ejb projects(ProjectOne ane ProjectTwo)

In ProjectOne i have given JNDI name as "General"

(in ejb_j2ee_engine.xml).

While lookup this JNDI name in ProjectTwo it is giving Exception like below.

javax.ejb.<i><b>ObjectNotFoundException:</b></i> com.sap.engine.services.ejb.exceptions.BaseObjectNotFoundException: The requested object does not exist.

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:324)

at SoapServlet.doPost(SoapServlet.java:51)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:391)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:265)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:345)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:323)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:865)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:240)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)

at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

at java.security.AccessController.doPrivileged(Native Method)

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:94)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:162)

<u><b>code</b></u>

Object o= ctx.lookup("General");

MaterialGeneralDataEntityHome objMaterialGeneralDataEntityHome=(MaterialGeneralDataEntityHome)o;

regards

Guru

[former_member182372]

Hi Guru,

Object o= ctx.lookup("General");
MaterialGeneralDataEntityHome objMaterialGeneralDataEntityHome=(MaterialGeneralDataEntityHome)o;

is not able to throw ObjectNotFoundException, because according to <a href="http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/ejb/ObjectNotFoundException.html">ObjectNotFoundException</a> <i>The ObjectNotFoundException exception is thrown by a finder method to indicate that the specified EJB object does not exist.</i>. Could you please post a code which causes this exception and the whole stacktrace.

Best regards, Maksim Rashchynski.

[Former Member]

hi,

Object o= ctx.lookup("NewGeneral");

MaterialGeneralDataEntityHome objMaterialGeneralDataEntityHome=(MaterialGeneralDataEntityHome)o;

String strmaterialDesc = objMaterialGeneralDataEntity.getStrMaterialDesc();

regards

Guru

[Former Member]

hi,

Object o= ctx.lookup("<i><b>General</b></i>");

MaterialGeneralDataEntityHome objMaterialGeneralDataEntityHome=(MaterialGeneralDataEntityHome)o;

String strmaterialDesc = objMaterialGeneralDataEntity.getStrMaterialDesc();

regards

Guru

[former_member182372]

Hi Guru,

Where do you get reference to component interface (objMaterialGeneralDataEntity)? You should call create or find method in your home interface to get reference to compoennt interface.

Best regards, Maksim Rashchynski.

[Former Member]

hi,

this is code;

Object o= ctx.lookup("General");

MaterialGeneralDataEntityHome objMaterialGeneralDataEntityHome=(MaterialGeneralDataEntityHome)o;

<u><i><b>MaterialGeneralDataEntity objMaterialGeneralDataEntity = objMaterialGeneralDataEntityHome.findDivisionBymat</b></i></u>(strMat);

String strmaterialDesc = objMaterialGeneralDataEntity.getStrMaterialDesc();

[former_member182372]

Are you working with CMP entity bean? Seems like you just don`t have an entity in your DB matching your conditions ( findDivisionBymat(strMat) ). You are trying to load non-existing entity. So, you can create MaterialGeneralDataEntity or report exception to the user, that entity for given search criteria doesnt exist.

[Former Member]

hi,

i am working with CMP .This code has been working fine from 2 days .today suddenly it is Giving exception.

regards

Guru

[former_member182372]

Someone has deleted the enitity ( or entities) .

[Former Member]

hi,

it is there.i have seen it in server with the help of visualAdim(EJBContainer).

regards

Guru

[former_member182372]

No, no....not a EJB, but entity. Directly from DB or using delete method of home interface. Check your DB for appropriate table.

[Former Member]

hi,

it is there in maxdb(tmp_mat).entity bean is also there in server.

<i><b>can i change any settings in server to run this.</b></i>

regards

Guru

[former_member182372]

Where MaterialGeneralDataEntity is stored, in which table? Insert a record to this table which matches your search criteria (mat==strMat).

[Former Member]

Is your application ProjectOne deployed correctly?

Have you checked if the EJB you are trying to bind with the name <b>"General"</b> has been correctly deployed on the WebAS? If you have access to JNDI Registry / Visual administrator you can check this.

HTH,

Rgds,

Amol

[Former Member]

hi,

i have checked jndi name with the help of visualadmin.the jndi name "General" is there.But it is Giving exception.

Regards

Guru

[Former Member]

This exception might be thrown by a finder method in your entity bean that should return a unique value.If you have written any finder methods in your bean then verify the implementation.