Calling ejb remote method
SQLPLUS How to call ejb remote method in the sql plus.i am getting problem to intiallize the initial context.
hi chidambaresh,
you could have sent this to me directly.
the Enumeration si an interface and so the object we get during the runtime is basically an object of some implementation of this interface.
the Enumeration you get from HAshtable is actually Serializable.
but the Enumeration you actually get from Vector (this is actaully an inner class of Vector viz., Vector$1) is not serializable. that is what the error you are getting.
regards
Srinivasan.R
(VAMSOFT)
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java.lang.NullPointerException
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:245)
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Unable call ejb remote in weblogic 10.3
hi all,
I am trying to call a remote service deployed in weblogic 10.3 here are my classes
@Stateless (mappedName = "ejb/engine")
@TransactionManagement(value=TransactionManagementType.CONTAINER)
public class JsacEngineEJB implements JsacEngineEJBRemote {
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Truncated. see log file for complete stacktrace
any idea???
Best regardsHi,
It seems that the Followinf line of code is causing the issue:
String jndi = "ejb/engine#"
<font color=red>final String jndiName =jndi+beanClass.getCanonicalName();</font><BR>
final T bean = (T)jndiLookup(jndiName);
Is it possible for you to Not to use the ".getCanonicalName()" method. Rather u can use a Simple Custom JNDI Name for your EJBs. Like: http://weblogic-wonders.com/weblogic/2009/08/21/custom-jndi-ejb3/
Sometimes we get the following errors if we dont generate the EJB Client artifacts to be used at client end. Please try generating EJB Client JAR...as well: http://weblogic-wonders.com/weblogic/2010/04/02/generating-ejb3-clientjar/
java.lang.NoSuchMethodException:
at java.lang.Class.getMethod(Class.java:1605)
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Hi
Iam getting error when i try to call a ejb method from servlet.Error is
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I was using the session bean.Your suggestion helped me a lot.Perfect.
I debug my program and found that from ejbCreate()exception is getting.
I was getting the datasource object thro ejb create() initialisation.
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Piece of code from ias-ejb-jar.xml
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Piece of code from ejb-jar.xml
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ility(java.lang.String,java.lang.String,java.lang.String,java.lang.String)],Xid=4:916d7da2142a593c(2094524),Status=Committed,HeuristicErrorCode=XA_HEU
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com.memec.na.mppl.businessobjects.inventory.In
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S+10.1.129.124:7001+leiwang+); nested exception is:
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HeuristicHazard, (javax.transaction.xa.XAException: Error dequeueing
message for statement connection # 23 type S))
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at com.memec.na.mppl.businessobjects.inventory.InventorySessionBean_9wgxw_EOImpl.getPriceAndAvailability(InventorySessionBean_9wgxw_EOImpl.jav
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Hi
I was using the session bean.Your suggestion helped me a lot.Perfect.
I debug my program and found that from ejbCreate()exception is getting.
I was getting the datasource object thro ejb create() initialisation.
Somehow the look up jndi which i mentioned was not interpretting from ejb-jar.xml ias-ejb-jar.xml and datasource ref .Due to this iam getting jndi Namenotfound exception which in turns to null pointer as datasource is getting null.
when i hardcoded in the ejb the the jndi name for datasource it is working fine.Bit worried all the existing ejbs working with the xml referenced datasource and jndi,but when i added a new ejb with same properties it is failing to get the jndi name.
Piece of code from ias-ejb-jar.xml
<resource-ref>
<res-ref-name>myDataSource</res-ref-name>
<jndi-name>jdbc/nb/myData</jndi-name>
</resource-ref>
Piece of code from ejb-jar.xml
<resource-ref>
<res-ref-name>myDataSource</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
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I've been programming in Java for a few years, but I'm quite new at using JSP. I have a Java class that has methods to do some manipulations in a remote database. I'd like to invoke one of its public methods from a JSP page when I click on the correct link.
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Problem in Calling EJB remotely in Oracle9iAS
Hi All,
Im getting a strange problem while Im trying to access an EJB deployed in one orion application server from a web client, deployed in another orion application server.
The orion server version Im using is Oracle9iAS (1.0.2.2.1) running on Windows XP (for both the deployment).
To explain the settings more -
a) Ive a J2EE application running on orion server (say A) in which a client web application (say TestClient.war) is deployed.
Ive another J2EE application running on another orion server (say B) in which an EJB (say TestEJB) is deployed in a test application (say TestApp). TestApp.ear contains TestEJB.jar as one of the modules.
b) From TestClient.war Im trying to connect to TestEJB of TestApp.
c) Based on the documentation Ive read Ive done the following settings/configurations.
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<server host="mchnB" username="SCOTT" port="23791" password="TIGER"/>
<log>
<file path="../log/rmi.log" />
</log>
(machineB is the network name of the machine where server B is running)
d) In the rmi.xml of orion server B Ive incorporated lines
<log>
<file path="../log/rmi.log" />
</log>
e) In the code of TestClient while creating InitialContext for server B Im using following name value parameters and putting them in a hash table (say envHtb).
java.naming.factory.initial=com.evermind.server.ApplicationClientInitialContextFactory
java.naming.provider.url=ormi://machineB/TestApp
java.naming.security.principal=SCOTT
java.naming.security.credentials=TIGER
java.naming.security.authentication=none
f) In principals.xml in server A Ive code like -
<groups>
<group name="administrators">
<description>administrators</description>
<permission name="administration" />
<permission name="com.evermind.server.AdministrationPermission" />
</group>
</groups>
<users>
<user username="SCOTT" password="TIGER">
<description>no description</description>
<group-membership group="administrators" />
</user>
</users>
However, while executing the code
Context ctx = new InitialContext (envHtb)
following error is obtained
java.lang.NullPointerException at com.evermind.server.rmi.RMIInitialContextFactory.getInitialContext(RMIInitialContextFactory.java:174) at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext(ApplicationClientInitialContextFactory.java:156) at javax.naming.spi.NamingManager.getInitialContext(Unknown Source) at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source) at javax.naming.InitialContext.init(Unknown Source) at javax.naming.InitialContext.(Unknown Source).
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Thanks in advance.
Regards,
SouravHi Sourav,
You said...
"c) Based on the documentation I?ve read I?ve done the following
settings/configurations."
I don't know what documentation you are referring to, but you
are using a very old version of OC4J. Therefore, I believe that
the following posting may be relevant to you:
Re: Converting a Group Left to a Group Above Report
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I can't call ejb remotely with java applicatoin (javax.naming.NameNotFoundException).
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Context initial = new InitialContext();
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Unable to call exported client methods of EJB session bean remote interface
I am unable to call client methods of a BC4J application module deployed as a Session EJB to Oracle 8i at the client side of my multi-tier application. There is no documentation, and I am unable to understand how I should do it.
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public void doNothingOneArg(String astr) {
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if (theCertificate != null)
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else return("No, absent");
theCertificate being a protected class variable and Certificate being a class, etc.
The application module has been tested in the local mode, made remotable to be deployed as EJB session bean, methods to appear at the client side have been selected. The application module has been successfully deployed to Oracle 8.1.7 and tested in the remote mode. A custom library containing BestdataModuleEJBClient.jar and BestDataCommonEJB.jar has been created.
Then I try to create a client basing on Example Oracle8i/EJB Client snippet:
package bestclients;
import java.lang.*;
import java.sql.*;
import java.util.*;
import javax.naming.*;
import oracle.aurora.jndi.sess_iiop.*;
import oracle.jbo.*;
import oracle.jbo.client.remote.ejb.*;
import oracle.jbo.common.remote.*;
import oracle.jbo.common.remote.ejb.*;
import oracle.jdeveloper.html.*;
import bestdata.client.ejb.*;
import bestdata.common.ejb.*;
import bestdata.common.*;
import bestdata.client.ejb.BestdataModuleEJBClient;
public class BestClients extends Object {
static Hashtable env = new Hashtable(10);
public static void main(String[] args) {
String ejbUrl = "sess_iiop://localhost:2481:ORCL/test/TESTER/ejb/bestdata.BestdataModule";
String username = "TESTER";
String password = "TESTER";
Hashtable environment = new Hashtable();
environment.put(javax.naming.Context.URL_PKG_PREFIXES, "oracle.aurora.jndi");
environment.put(Context.SECURITY_PRINCIPAL, username);
environment.put(Context.SECURITY_CREDENTIALS, password);
environment.put(Context.SECURITY_AUTHENTICATION, ServiceCtx.NON_SSL_LOGIN);
BestdataModuleHome homeInterface = null;
try {
Context ic = new InitialContext(environment);
homeInterface = (BestdataModuleHome)ic.lookup(ejbUrl);
catch (ActivationException e) {
System.out.println(e.getMessage());
e.printStackTrace();
System.exit(1);
catch (CommunicationException e) {
System.out.println(e.getMessage());
e.printStackTrace();
System.exit(1);
catch (NamingException e) {
System.out.println(e.getMessage());
e.printStackTrace();
System.exit(1);
try {
System.out.println("Creating a new EJB instance");
RemoteBestdataModule remoteInterface = homeInterface.create();
// Method calls go here!
// e.g.
// System.out.println(remoteInterface.foo());
catch (Exception e) {
System.out.println(e.getMessage());
e.printStackTrace();
It doesnt cause any errors. However, how must I call methods? The public interface RemoteBestdataModule has no such methods:
void doNothingNoArgs();
void doNothingOneArg(java.lang.String astr);
void setCertificate(java.lang.String userName, java.lang.String userPassword);
java.lang.String getPermission();
Instead of that it has the following methods:
oracle.jbo.common.remote.PiggybackReturn doNothingNoArgs(byte[] _pb) throws oracle.jbo.common.remote.ejb.RemoteJboException, java.rmi.RemoteException;
oracle.jbo.common.remote.PiggybackReturn doNothingOneArg(byte[] _pb, java.lang.String astr) throws oracle.jbo.common.remote.ejb.RemoteJboException, java.rmi.RemoteException;
oracle.jbo.common.remote.PiggybackReturn customQueryExec(byte[] _pb, java.lang.String aQuery) throws oracle.jbo.common.remote.ejb.RemoteJboException, java.rmi.RemoteException;
oracle.jbo.common.remote.PiggybackReturn setCertificate(byte[] _pb, java.lang.String userName, java.lang.String userPassword) throws oracle.jbo.common.remote.ejb.RemoteJboException, java.rmi.RemoteException;
oracle.jbo.common.remote.PiggybackReturn getPermission(byte[] _pb) throws oracle.jbo.common.remote.ejb.RemoteJboException, java.rmi.RemoteException;
I cannot call those methods. I can see how they are called in BestdataModuleEJBClient.java file:
public void doNothingNoArgs() throws oracle.jbo.JboException {
try {
oracle.jbo.common.remote.PiggybackReturn _pbRet = mRemoteAM.doNothingNoArgs(getPiggyback());
processPiggyback(_pbRet.mPiggyback);
if (_pbRet.isReturnStreamValid()) {
return;
catch (oracle.jbo.common.remote.ejb.RemoteJboException ex) {
processRemoteJboException(ex);
catch (java.rmi.RemoteException ex) {
processRemoteJboException(ex);
throw new oracle.jbo.JboException("Marshall error");
However, I cannot call getPiggyback() function! It is a protected method, it is available to the class BestdataModuleEJBClient which extends EJBApplicationModuleImpl, but it is unavailable to my class BestClients which extends Object and is intended to extend oracle.jdeveloper.html.WebBeanImpl!
It seems to me that I mustnt use RemoteBestdataModule interface directly. Instead of that I must use the public class BestdataModuleEJBClient that extends EJBApplicationModuleImpl and implements BestdataModule interface. It contains all methods required without additional arguments (see just above). However, how must I create an object of BestdataModuleEJBClient class? That is a puzzle. Besides my custom methods the class has only two methods:
protected bestdata.common.ejb.RemoteBestdataModule mRemoteAM;
/*This is the default constructor (do not remove)*/
public BestdataModuleEJBClient(RemoteApplicationModule remoteAM) {
super(remoteAM);
mRemoteAM = (bestdata.common.ejb.RemoteBestdataModule)remoteAM;
public bestdata.common.ejb.RemoteBestdataModule getRemoteBestdataModule() {
return mRemoteAM;
It looks like the remote application module must already exist! In despair I tried to put down something of the kind at the client side:
RemoteBestdataModule remoteInterface = homeInterface.create();
BestdataModuleEJBClient dm = new BestdataModuleEJBClient(remoteInterface);
dm.doNothingNoArgs();
Of course, it results in an error.
System Output: null
System Error: java.lang.NullPointerException
System Error: oracle.jbo.common.PiggybackOutput oracle.jbo.client.remote.ApplicationModuleImpl.getPiggyForRemovedObjects(oracle.jbo.common.PiggybackOutput) (ApplicationModuleImpl.java:3017)
System Error: byte[] oracle.jbo.client.remote.ApplicationModuleImpl.getPiggyfront(boolea
System Error: n) (ApplicationModuleImpl.java:3059)
System Error: byte[] oracle.jbo.client.remote.ApplicationModuleImpl.getPiggyback() (ApplicationModuleImpl.java:3195)
System Error: void bestdata.client.ejb.BestdataModuleEJBClient.doNothingNoArgs() (BestdataModuleEJBClient.java:33)
System Error: void bes
System Error: tclients.BestClients.main(java.lang.String[]) (BestClients.java:76)
I have studied a lot of documents in vain. I have found only various senseless discourses:
"Use the Application Module Wizard to make the Application Module remotable and export the method. This will generate an interface for HrAppmodule (HrAppmodule.java in the Common package) which contains the signature for the exported method promoteAllEmps(). Then, deploy the Application Module. Once the Application Module has been deployed, you can use the promoteAllEmps() method in your client-side programs. Calls to the promoteAllEmps() method in client-side programs will result in calls to the promote() method in the application tier."
However, I have failed to find a single line of code explaining how it should be called.
Can anybody help me?
Best regards,
Svyatoslav Konovaltsev,
[email protected]
nullDear Steven,
1. Thank you very much. It seems to me that the problem is solved.
2. "I logged into Metalink but it wants me to put in both a tar number and a country name to see your issue." It was the United Kingdom, neither the US nor Russia if you mean my issue.
I reproduce the text to be written by everyone who encounters the same problem:
package bestclients;
import java.util.Hashtable;
import javax.naming.*;
import oracle.jbo.*;
public class BestdataHelper {
public static ApplicationModule createEJB()
throws ApplicationModuleCreateException {
ApplicationModule applicationModule = null;
try {
Hashtable environment = new Hashtable(8);
environment.put(Context.INITIAL_CONTEXT_FACTORY, JboContext.JBO_CONTEXT_FACTORY);
environment.put(JboContext.DEPLOY_PLATFORM, JboContext.PLATFORM_EJB);
environment.put(Context.SECURITY_PRINCIPAL, "TESTER");
environment.put(Context.SECURITY_CREDENTIALS, "TESTER");
environment.put(JboContext.HOST_NAME, "localhost");
environment.put(JboContext.CONNECTION_PORT, new Integer("2481"));
environment.put(JboContext.ORACLE_SID, "ORCL");
environment.put(JboContext.APPLICATION_PATH, "/test/TESTER/ejb");
Context ic = new InitialContext(environment);
ApplicationModuleHome home = (ApplicationModuleHome)ic.lookup("bestdata.BestdataModule");
applicationModule = home.create();
applicationModule.getTransaction().connect("jdbc:oracle:kprb:@");
applicationModule.setSyncMode(ApplicationModule.SYNC_IMMEDIATE);
catch (NamingException namingException) {
throw new ApplicationModuleCreateException(namingException);
return applicationModule;
package bestclients;
import bestdata.common.*;
import certificate.*;
public class BestClients extends Object {
public static void main(String[] args) {
BestdataModule bestdataModule = (BestdataModule)BestdataHelper.createEJB();
Certificate aCertificate = new Certificate("TESTER", "TESTER");
//calling a custom method!!
bestdataModule.passCertificate(aCertificate);
Thank you very much,
Best regards,
Svyatoslav Konovaltsev.
[email protected]
null -
Marshall exception when calling a remote business method in EJB
Hi,
From a java client, i am calling a business method from a ejb. the home and remote interface object is sucessfully received at the client. but at the time of calling the remote business method the following error occurs.
java.rmi.RemoteException: ; nested exception is:
weblogic.rmi.ServerException: A remote exception occurred while executing the method on the
remote object
- with nested exception:
[weblogic.rmi.MarshalException: error marshalling return
- with nested exception:
[java.io.NotSerializableException: java.util.Vector$1]]
java.io.NotSerializableException: java.util.Vector$1
the business method returns an enumeration object.
How to solve this?
-chidamhi chidambaresh,
you could have sent this to me directly.
the Enumeration si an interface and so the object we get during the runtime is basically an object of some implementation of this interface.
the Enumeration you get from HAshtable is actually Serializable.
but the Enumeration you actually get from Vector (this is actaully an inner class of Vector viz., Vector$1) is not serializable. that is what the error you are getting.
regards
Srinivasan.R
(VAMSOFT) -
Exception data: java.lang.AbstractMethodError - Calling Remote Method.
We recently changed some of our CMP fields from primative int's to integer's and now we are receiving Abstract Method Errors at runtime. We have fixed all the methods that use this CMP fields, well at least we think we got them all. Since this are remote methods the sever is setup to pull JAR files from a lib directory on the server. This JAR files have also been updated. Can anyone give me more information about this error or something I might be missing.
------------------------------------------------------------------------------------- Errors -------------------------------------------------------------------------------------
[11/7/07 15:40:23:141 CST] 00000022 ExceptionUtil E CNTR0020E: EJB threw an unexpected (non-declared) exception during invocation of method "getPositionInfo" on bean "BeanId(hr-ear#hr-ejb.jar#PositionService, null)". Exception data: java.lang.AbstractMethodError: com/tgt/supply/pdd/ejb/entity/AmcOffice.getOfcI()Ljava/lang/Integer;
at com.theamc.hr.ejb.session.PositionServiceBean.getPositionCollections(PositionServiceBean.java:1383)
at com.theamc.hr.ejb.session.PositionServiceBean.getPositionInfo(PositionServiceBean.java:46)
at com.theamc.hr.ejb.session.EJSRemoteStatelessPositionService_fae72574.getPositionInfo(EJSRemoteStatelessPositionService_fae72574.java:262)
at com.theamc.hr.ejb.session._PositionService_Stub.getPositionInfo(_PositionService_Stub.java:272)
at com.theamc.hr.web.servlet.PositionServlet.createPageObject(PositionServlet.java:153)
at com.theamc.framework.servlet.ControllerServlet.doGet(ControllerServlet.java:221)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:92)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:744)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:93)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:394)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:152)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:213)
at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.java:195)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510)
[11/7/07 15:34:10:043 CST] 00000020 ExceptionUtil E CNTR0020E: EJB threw an unexpected (non-declared) exception during invocation of method "getUserOrgInfo" on bean "BeanId(userprofile-ear#userprofile-ejb.jar#UserOrgInfo, null)". Exception data: java.lang.AbstractMethodError: com/tgt/supply/pdd/ejb/entity/AmcOffice.getOfcI()Ljava/lang/Integer;
at com.theamc.userprofile.ejb.session.UserOrgInfoBean.getUserOfficeValue(UserOrgInfoBean.java:536)
at com.theamc.userprofile.ejb.session.UserOrgInfoBean.getUserOrgInfo(UserOrgInfoBean.java:84)
at com.theamc.userprofile.ejb.session.EJSRemoteStatelessUserOrgInfo_13c2e095.getUserOrgInfo(EJSRemoteStatelessUserOrgInfo_13c2e095.java:194)
at com.theamc.userprofile.ejb.session._UserOrgInfo_Stub.getUserOrgInfo(_UserOrgInfo_Stub.java:273)
at com.theamc.userprofile.servlet.UserOrgInfoServlet.createPageObject(UserOrgInfoServlet.java:243)
at com.theamc.framework.servlet.ControllerServlet.doGet(ControllerServlet.java:221)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3129)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:238)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:93)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:394)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:152)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:213)
at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.java:195)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510)
------------------------------------------------------------------------------------- Usage -------------------------------------------------------------------------------------
HashMap ofcRegn = new HashMap();
AmcOffice off = null;
AmcOfficeHome offHome = com.tgt.supply.pdd.ejb.entity.EntityHomeFactory.getAmcOfficeHome();
ArrayList ofcColl = new ArrayList();
Iterator iter = offHome.findAll().iterator();
while (iter.hasNext()) {
off = (AmcOffice) PortableRemoteObject.narrow(iter.next(), AmcOffice.class);
ofcColl.add(new GenericCode(""+off.getOfcI(),off.getOfcN())); line 1383
ofcRegn.put(""+off.getOfcI(),""+off.getRegnI());
The abstract method error is thrown when off.getOfcI() is called. OfcI is the field that was changed from a primative int to an integer.
Any help is appreciated
ChrisI am pretty sure. I am using RAD locally so I have deleted all the generated AccessBean and Deployment code and rerun the deploy. My concern is that these remote methods are using an external JAR file which is loaded when the server is started. I have updated this JAR files, but I am not sure if maybe they are being cached some where.
-
How to call the secured EJB from timer ejb timedout method.
Hi All,
I have a couple of questions on EJB 3.1 Timer Service.
1. How to call the secured EJB (annotated @RolesAllowed) from Timer EJB @Timeout Method?
2. What's the default role/principal with which the Timer @Timeout Method gets called?
Please let me know any info regarding the same.
Thanks,
SureshI'd start here:
http://ant.apache.org/manual/index.html
If that doesn't help, go to the table of contents and start poking around. You don't need to read the whole thing front to back, but if you're not willing to spend some time researching and reading, you're not going to get very far. -
Can a client call the ejb callback methods directly????
Is there any way using which client can call the ejb callback methods directly.
ie in the client program i want to call ejbPassivate/ejbActivate?? is there any way of doing the sameshort answer: yes, pass a reference of the ejb (bean class) to the client. This will not do what you expect however and hopefully with generate an error that you should read as "don't do this".
better answer: you are no longer doing ejb development if you do this. those methods exists for the container to interact with your bean and are NOT meant for clients. You should NEVER do what I suggest in my "short answer".
Maybe you are looking for
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