Deployment Issue with MDM Java API exposed as Webservice using EJBS

Question

Hi Experts,
I am implementing MDM Java APIS in Stateless session bean.Exposed that bean as Webservice and using that webservice in
Webdynpro through Adaptive Webservice Model.
I am facing following issue:
Webservice works fine after deployment,after some number of execution webservice stops working and gives exception.After
Redeployment of the Webservice, it starts working again works fine some number of execution.
I am Using new MDMJava API.
MDM Server Details: MDM 5.5 SP06
I am using following code for connetion
//////////////*************Getting Connection************///////
          ConnectionPool pool = null;
          String sessionId = null;
          try {
               pool = ConnectionPoolFactory.getInstance("Server Ip");
          } catch (ConnectionException e1) {
               System.out.println(e1.getMessage());
//////////////*************Repository Session************///////
CreateRepositorySessionCommand repSeession =
               new CreateRepositorySessionCommand(p_pool);
          repSeession.setRepositoryIdentifier(p_repId);
          try {
               repSeession.execute();
          } catch (CommandException e2) {
               System.out.println(e2.getMessage().toString());
          String repIID = repSeession.getRepositorySession();
          //     Authenticate Repository
          AuthenticateRepositorySessionCommand autRepSeesion =
               new AuthenticateRepositorySessionCommand(p_pool);
          try {
               autRepSeesion.setSession(repSeession.getRepositorySession());
               autRepSeesion.setUserName(p_user);
               autRepSeesion.setUserPassword(p_Password);
               autRepSeesion.execute();
          } catch (CommandException e3) {
               System.out.println(
                    "RepSession Seesion" + e3.getMessage().toString());
          return autRepSeesion.getSession();
//////////////*************user Session************///////
GetRepositoryRegionListCommand regionListCommand =
               new GetRepositoryRegionListCommand(p_pool);
          regionListCommand.setRepositoryIdentifier(p_repId);
          try {
               regionListCommand.execute();
          } catch (CommandException e) {
               System.out.println(e.getMessage().toString());
          RegionProperties[] regions = regionListCommand.getRegions();
          //                                 create a user session
          CreateUserSessionCommand UsersessionCommand =
               new CreateUserSessionCommand(p_pool);
          UsersessionCommand.setRepositoryIdentifier(p_repId);
          UsersessionCommand.setDataRegion(regions[0]);
          // use the first region
          try {
               UsersessionCommand.execute();
          } catch (CommandException e) {
               System.out.println("UserSession" + e.getMessage().toString());
          String UsersessionId2 = UsersessionCommand.getUserSession();
AuthenticateUserSessionCommand authUserCommand =
               new AuthenticateUserSessionCommand(p_pool);
          authUserCommand.setSession(UsersessionCommand.getUserSession());
          authUserCommand.setUserName(p_userId);
          authUserCommand.setUserPassword(p_password);
          try {
               authUserCommand.execute();
          } catch (CommandException e) {
               System.out.println("User Seesion" + e.getMessage().toString());
          return authUserCommand.getSession();
//////////////*************Destroy Session************///////
     DestroySessionCommand destroySessionCommand =
               new DestroySessionCommand(p_pool);
          destroySessionCommand.setSession(p_repsession);
          try {
               destroySessionCommand.execute();
          } catch (CommandException e) {
               e.printStackTrace();
          destroySessionCommand.setSession(p_Uesrsession);
               try {
                    destroySessionCommand.execute();
               } catch (CommandException e) {
                    e.printStackTrace();
Do we need to relase the connection pool object also?
Can anyone help me with the code how that can be achived?
Please Reply if anyone has come accross similar issue or know what can be the solution.
Thanks in Advance.
Regards Shruti
Edited by: Shruti Shah on Dec 18, 2008 12:52 PM

Answer 1

Hi Nitin,
Thanks for the prompt Response.
Even I am guessing that its becose of Connection pool.
I am destroying session as follows
               DestroySessionCommand destroySessionCommand =
               new DestroySessionCommand(p_pool);
          destroySessionCommand.setSession(p_repsession);
          try {
               destroySessionCommand.execute();
          } catch (CommandException e) {
               e.printStackTrace();
          destroySessionCommand.setSession(p_Uesrsession);
               try {
                    destroySessionCommand.execute();
               } catch (CommandException e) {
                    e.printStackTrace();
But I didnot find any method by which i can close realsse connection from connection pool.
It would be great if you can help me how close or realese those connection.In MDM Console i am able to see those sessions even after destroying them.
Regards Shruti.