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Dec 04, 2006 at 04:13 PM

Custom Login Module Development

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<b>I created a custom login module according to the sap documentation at help.sap.

After the deployment and configuration of the custom login module, when tried

to login, I am getting an error which is even outside of the customloginmodule,</b>

[code]

Unknown message (ID = java.lang.NoClassDefFoundError:

com/sap/security/api/UMException

at java.lang.Class.getDeclaredConstructors0(Native

Method)

at java.lang.Class.privateGetDeclaredConstructors(Class.java:1618)

at java.lang.Class.getConstructor0(Class.java:1930)

at java.lang.Class.newInstance0(Class.java:278)

at java.lang.Class.newInstance(Class.java:261)

at com.sap.engine.services.security.login.LoginModuleLogging

WrapperImpl.instantiateLoginModule

(LoginModuleLoggingWrapperImpl.java:112)

at com.sap.engine.services.security.login.LoginContextFactory.initializeLoginContext(LoginContextFactory.java:142)

at com.sap.engine.services.security.login.FastLoginContext.login(FastLoginContext.java:145)

at com.sap.engine.system.SystemLoginModule.login(SystemLoginModule.java:90)

at sun.reflect.GeneratedMethodAccessor324.invoke(Unknown Source)

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

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

at javax.security.auth.login.LoginContext.invoke(LoginContext.java:675)

at javax.security.auth.login.LoginContext.access$000

(LoginContext.java:129)

at javax.security.auth.login.LoginContext$4.run(LoginContext.java:610)

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

at javax.security.auth.login.LoginContext.invokeModule(LoginContext.java:607)

at javax.security.auth.login.LoginContext.login(LoginContext.java:534)

at com.sap.security.core.logon.imp.SAPJ2EEAuthenticator.logon(SAPJ2EEAuthenticator.java:255)

at com.sapportals.portal.prt.service.authenticationservice.AuthenticationService.login(AuthenticationService.java:367)

at com.sapportals.portal.prt.connection.UMHandler.handleUM(UMHandler.java:126)

at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:186)

at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:545)

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

at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:405)

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

at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:156)

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

at com.sap.engine.services.servlets_jsp.server.runtime.RequestDispatcherImpl.doWork(RequestDispatcherImpl.java:321)

at com.sap.engine.services.servlets_jsp.server.runtime.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:377)

at com.sap.portal.navigation.Gateway.service(Gateway.java:101)

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

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:160)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)

at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)

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:100)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)

)

User ID *

Password *

[/code]

<b>This com.sap.security.api.UMEExceptionis part of the

standard delivery jar com.sap.security.api.jar. If this

not found many of the standard applications would NOT

work.

I double verified the export of the login module classes as jar file.

Also, how that jar file is included in to a J2EE Server library project.

Next that resulting SDA file is deployed to the portal.

This deployment forms a folder in the <server_home>/bin/ext/ which is by the name

'<vendor name>\<customloginmodulelibraryname>.

I verified the contents of the jar file which was deployed, it is fine.

If I replace the loginmodule with a customloginmodule previously deployed, the

login is quite OK.

Implementation, packaging, deployment and configuration I verified many times.

What is something I am missing ?</b>

Thanks for your help,

Prasad Nutalapati