Corba/Ejb, Please help

Hi,
Could you tell me what is the main benefit of communication between Ejbs and Corba interfaces except transactions, if I use Java on Corba side also. Is it so good from the view of performance or something? If I suggest such a structure that connecting only to a corba side or only to a ejb side, does not it work nearly the same?
I am confused about the design strategy...
Best regards
jg

Comments inline...
jg wrote:
Hi,
Could you tell me what is the main benefit of communication between Ejbs and Corba interfaces except transactions, if I use Java on Corba side also.I'm not sure that it is possible, unless you do some extremely brittle things with the classes that are loaded. The interface from java-idl to an EJB is totally busted, as far as I can tell.
Is it so good from the view of performance or something?Functionality is the only benefit, performance is not the objective.
If I suggest such a structure that connecting only to a corba side or only to a ejb side, does not it work nearly the same?If I understand the question, you are wondering if it is possible to start from either IDL interfaces or EJB interfaces? The answer is that you must choose one or the other. If you choose IDL interfaces, consider WLE. If you Choose EJB interfaces, consider WLS.
>
>
I am confused about the design strategy...
Best regards
jg

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    >
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    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:853)
    at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:160)
    at $Proxy22.createAccount(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:123)
    at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:648)
    at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:192)
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1709)
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1569)
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:951)
    at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:181)
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:721)
    at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.dispatch(SocketOrChannelConnectionImpl.java:469)
    at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.doWork(SocketOrChannelConnectionImpl.java:1258)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:409)
    BUILD SUCCESSFUL (total time: 4 seconds)
    Please let me know the solution of the error!
    And also if client and application server is in same mechine which interface must be used to talk client with session bean?
    Please help me!

    1) It looks like you have an error in JDBC configuration.
    The main string is "Class name is wrong or classpath is not set for : oracle.jdbc.pool.OracleDataSource
    Check out JDBC connection pools and resources.
    2) If your beans and client there are at the same JVM you can use local interface, else use remote interface.

  • Please help me to run this CMP BEAN, I need help urgently, I am running out of time :(

    Hi,
    I am facing this problem, Please help me, I am attaching the source files
    also along with the mail. This is a small CMP EJB application, I am using
    IAS SP2 on NT server with Oracle 8. I highly appreciate if someone can send
    me the working copy of the same. I need these urgent. I am porting all my
    beans from bea weblogic to Iplanet. Please help me dudes.
    Err.........
    [06/Sep/2001 13:41:29:7] error: EBFP-marshal_internal: internal exception
    caught
    in kcp skeleton, exception = java.lang.NoSuchMethodError
    [06/Sep/2001 13:41:29:7] error: Exception Stack Trace:
    java.lang.NoSuchMethodError
    at
    com.se.sales.customer.ejb_kcp_skel_CompanyHome.create__com_se_sales_c
    ustomer_Company__java_lang_Integer__indir_wstr__215617959(ejb_kcp_skel_Compa
    nyHo
    me.java:205)
    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
    com.se.sales.customer.ejb_kcp_stub_CompanyHome.create(ejb_kcp_stub_Co
    mpanyHome.java:297)
    at
    com.se.sales.customer.ejb_stub_CompanyHome.create(ejb_stub_CompanyHom
    e.java:89)
    at
    com.se.sales.customer.CompanyServlet.doGet(CompanyServlet.java:35)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
    at
    com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
    Source)
    at
    com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unkno
    wn Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
    Caught an exception.
    java.rmi.RemoteException: SystemException: exid=UNKNOWN
    at com.kivasoft.eb.EBExceptionUtility.idToSystem(Unknown Source)
    at com.kivasoft.ebfp.FPUtility.replyToException(Unknown Source)
    at
    com.se.sales.customer.ejb_kcp_stub_CompanyHome.create(ejb_kcp_stub_Co
    mpanyHome.java:324)
    at
    com.se.sales.customer.ejb_stub_CompanyHome.create(ejb_stub_CompanyHom
    e.java:89)
    at
    com.se.sales.customer.CompanyServlet.doGet(CompanyServlet.java:35)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
    at
    com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
    Source)
    at
    com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unkno
    wn Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
    Thanks in advance
    Shravan
    [Attachment iplanet_app.jar, see below]
    [Attachment iplanet_src.jar, see below]

    One reason that I sometimes get 'NoSuchMethodError' is when I make a change to a
    java class that is imported into another java class. When I go to run the
    importing class, it will throw a 'NoSuchMethodError' on any methods that I've
    changed in the imported class. The solution is to recompile the importing class
    with the changed classes in the classpath.
    shravan wrote:
    Hi,
    I am facing this problem, Please help me, I am attaching the source files
    also along with the mail. This is a small CMP EJB application, I am using
    IAS SP2 on NT server with Oracle 8. I highly appreciate if someone can send
    me the working copy of the same. I need these urgent. I am porting all my
    beans from bea weblogic to Iplanet. Please help me dudes.
    Err.........
    [06/Sep/2001 13:41:29:7] error: EBFP-marshal_internal: internal exception
    caught
    in kcp skeleton, exception = java.lang.NoSuchMethodError
    [06/Sep/2001 13:41:29:7] error: Exception Stack Trace:
    java.lang.NoSuchMethodError
    at
    com.se.sales.customer.ejb_kcp_skel_CompanyHome.create__com_se_sales_c
    ustomer_Company__java_lang_Integer__indir_wstr__215617959(ejb_kcp_skel_Compa
    nyHo
    me.java:205)
    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
    com.se.sales.customer.ejb_kcp_stub_CompanyHome.create(ejb_kcp_stub_Co
    mpanyHome.java:297)
    at
    com.se.sales.customer.ejb_stub_CompanyHome.create(ejb_stub_CompanyHom
    e.java:89)
    at
    com.se.sales.customer.CompanyServlet.doGet(CompanyServlet.java:35)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
    at
    com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
    Source)
    at
    com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unkno
    wn Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
    Caught an exception.
    java.rmi.RemoteException: SystemException: exid=UNKNOWN
    at com.kivasoft.eb.EBExceptionUtility.idToSystem(Unknown Source)
    at com.kivasoft.ebfp.FPUtility.replyToException(Unknown Source)
    at
    com.se.sales.customer.ejb_kcp_stub_CompanyHome.create(ejb_kcp_stub_Co
    mpanyHome.java:324)
    at
    com.se.sales.customer.ejb_stub_CompanyHome.create(ejb_stub_CompanyHom
    e.java:89)
    at
    com.se.sales.customer.CompanyServlet.doGet(CompanyServlet.java:35)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
    at
    com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
    Source)
    at
    com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unkno
    wn Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
    Thanks in advance
    Shravan
    Name: iplanet_app.jar
    iplanet_app.jar Type: Java Archive (application/java-archive)
    Encoding: x-uuencode
    Name: iplanet_src.jar
    iplanet_src.jar Type: Java Archive (application/java-archive)
    Encoding: x-uuencode

  • Please, help me learn J2EE...point me out to better tutorials or something!

    Hi,
    Guys, I really need help in trying to learn what J2EE is.
    I've got prior knowledge and experience on Java (I thought), but ever since I came across the terms J2EE, EJB, JNI, JSP, JDBC and all that crap, I now don't know what I actually learnt!
    Please bear with me I beg of you! :)
    1.0: What I've learnt.
    ===============================
    So far, I've learnt (I think) the core/basics of the Java language, covering uhm...the basics up to GUIs, Arrays, IOStreams...yeah I think that's it.
    I code using notepad and compile them using the SDK...which up to now I still don't know if it is an SE or EE edition. It's j2sdk1.4.0 the last time I checked. I didn't use any IDE.
    I've done (school) projects like a Library System (involves loaning of books and charges etc etc), a Chalet Organizer (Loaning out chalets/rooms and charges etc etc) and an Appointment Organizer.
    So what was that which I learnt? Am I right to say that that is only core Java and nothing else and is next to worthless in the working world?
    2.0: Why I want to learn J2EE.
    ===============================
    Okay so why do I want to learn specifically J2EE? Well, most employment opportunities here require J2EE and EJB (and maybe some other alien terms) as prerequisites to being a "Java Programmer".
    I really need the job as soon as possible (for family's sake) and the job market here is already saturated with webmasters..
    3.0: What I have tried.
    ===============================
    Believe me, I tried for like 2 months already to try learn this thing on my own.
    I have followed almost exactly to the J2EE "Beginner's Tutorial" found on http://java.sun.com/j2ee/tutorial/ but no matter how far I read, I'm still just as clueless as I was when I was in my mother's womb about what J2EE is all about, even though I did the examples. I stopped somewhere in the middle of "Getting Started" because I realized I wasn't learning anything at all.
    4.0: Help meeeeeee...
    ===============================
    4.1:
    Can anyone please help me set my head straight and either point me to a REAL beginner's tutorial on J2EE and what the heck it is, or help explain to me slowly what J2EE really is and how to learn it?
    4.2:
    What's the difference between J2EE and J2SE?!? I initially thought that J2SE was simply just a smaller download which didn't include some of the heavier stuff that the EE carried, but boy was I wrong when that same tutorial asked me to install BOTH of them!
    4.3:
    Is it right for me to think that EJB are just files which are precoded to facilitate programming? e.g.:(I could've written up my own Date class instead of using the standard Date class that everybody uses.)
    4.4:
    What the hell is Jakarta Ant? Is it a builder and not a compiler, and may allow me to run built programs just by double-clicking on an e.g. executable? Like C++? So that I don't have to go to command prompt and type "java myApp.class"? (OT, but I think it's ridiculous that Apache has this and not Sun!!)
    4.5:
    Is there a simpler, much much much simpler example of a J2EE tutorial besides the overly vague tutorial "The Duke's Bank Application"? I need more examples of smaller scale maaaan... Better yet, is there a tutorial around that covers the very very very basics of Java all the way up to J2EE, step by step and with ample explanations?
    =========================
    Thanks all, I would really really appreciate any heads up you can provide me with.
    Sincerely, Kai.

    Lee and tsith - same fella -
    Run Tomcat as a standalone critter - the install of the current ver (4.1.12?) on a Windows machine sets it up nicely, and you don't have to worry about web connectors and stuff. Just create a few JSPs and dump them somewhere under the ROOT directory of your webapps directory and you should be able to hit them via a URL like http://localhost:8080/test.jsp (assuming you have it running on port 8080). Once you get your fill of the JSP thing, make a serrvlet and look into creating WAR files - then copy your WAR file into webapps subdirectory of your Tomcat installation and play with that. When you've had enough Servlet fun, then look into JBoss and making EAR files and you'll have all sorts of fun with JNDI and JDBC and all those other acronyms.
    Ant is just a build tool, not a compiler. Compiling simple java classes is no big deal, 'cause you just type javac MyClass.java or some such. But when you get into complicated build processes (like, compile these classes, making sure to include the J2EE jar and all the other jars I need, and create a WAR file, and deploy it to Tomcat) then Ant really helps.
    If you want help documenting your classes, the javadoc tool is for you.
    Lee

  • Unable to deploy example 'banking' application on weblogic, please help...

    Hi,
    I have downloaded the example 'banking.zip' and have installed it.
    I have followed all given steps in the tutorial, but I am unable to
    see the login page.
    I am also not able to see the ejb and web application descriptor file
    from the admin console.
    I have copied the banking directory to
    '$WEBLOGIC\config\mydomain\applications'.
    There are 3 directories under it
    (1) ejb (containing meta-inf and examples directory. Meta-info
    contains the descriptor .xml files)
    (2) web (containing web-inf and html,jsp and image files. Web-inf
    contains weblogic.xml and web.xml)
    (3) Meta-Inf (containing the application.xml)
    I get the 'Error 404--Not Found' error when I go to
    http://localhost:8001/banking/login.html. (my server is running on
    8001 port, i hope this doesn't matter)
    When I try to edit the web application descriptor I get the following
    error
    java.lang.NullPointerException
         at weblogic.management.console.utils.MBeans.getMBeanClassFor(MBeans.java:860)
         at weblogic.management.console.actions.internal.ActionUtils.getAreaFor(ActionUtils.java:142)
         at weblogic.management.console.actions.mbean.MBeanDescriptorFramesetAction.perform(MBeanDescriptorFramesetAction.java:133)
         at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:167)
         at weblogic.management.console.actions.internal.ActionServlet.doGet(ActionServlet.java:91)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
         at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2456)
         at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2039)
         at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
         at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    Could someone please help me ? I am trying to deploy this in the
    exploded form. My server is running in the development mode.
    - Thanks in advance,
    Sonali

    Hi,
    I was able to successfully deploy after installing
    weblogic 6.1 SP2 (earlier I had SP1). Also, I had to make
    changes in the BankAppServlet code since it tries to find the
    bean with a different name than one specified in jndi-name.
    - Thanks,
    Sonali
    [email protected] (Sonali Kale) wrote in message news:<[email protected]>...
    Hi,
    I have downloaded the example 'banking.zip' and have installed it.
    I have followed all given steps in the tutorial, but I am unable to
    see the login page.
    I am also not able to see the ejb and web application descriptor file
    from the admin console.
    I have copied the banking directory to
    '$WEBLOGIC\config\mydomain\applications'.
    There are 3 directories under it
    (1) ejb (containing meta-inf and examples directory. Meta-info
    contains the descriptor .xml files)
    (2) web (containing web-inf and html,jsp and image files. Web-inf
    contains weblogic.xml and web.xml)
    (3) Meta-Inf (containing the application.xml)
    I get the 'Error 404--Not Found' error when I go to
    http://localhost:8001/banking/login.html. (my server is running on
    8001 port, i hope this doesn't matter)
    When I try to edit the web application descriptor I get the following
    error
    java.lang.NullPointerException
         at weblogic.management.console.utils.MBeans.getMBeanClassFor(MBeans.java:860)
         at weblogic.management.console.actions.internal.ActionUtils.getAreaFor(ActionUtils.java:142)
         at weblogic.management.console.actions.mbean.MBeanDescriptorFramesetAction.perform(MBeanDescriptorFramesetAction.java:133)
         at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:167)
         at weblogic.management.console.actions.internal.ActionServlet.doGet(ActionServlet.java:91)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
         at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2456)
         at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2039)
         at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
         at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    Could someone please help me ? I am trying to deploy this in the
    exploded form. My server is running in the development mode.
    - Thanks in advance,
    Sonali

  • Error 500--Internal Server Error.PLEASE   HELP .

    hi,
    I am using BEA weblogic server 9.0.i created a new domain named myproject.I have created directory mywebapp under applications dir.
    i.e C:\bea\user_projects\domains\myproject\applications\mywebapp
    I have placed my servlet class in :
    C:\bea\user_projects\domains\myproject\applications\mywebapp\WEB-INF\classes\Mypackage
    I deployed my apllication mywebapp using admin console.
    when i run the program in the browser,i get this error:
    Error 500--Internal Server Error
    javax.servlet.ServletException: [HTTP:101249][weblogic.servlet.internal.WebAppServletContext@17e5fde - name: 'mywebapp', context-path: '/mywebapp']: Servlet class HelloServlet for servlet myHello could not be loaded because the requested class was not found in the classpath C:\bea\user_projects\domains\myproject\applications\mywebapp\WEB-INF\classes.
    java.lang.ClassNotFoundException: HelloServlet.
         at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:497)
         at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:234)
         at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:2970)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
         at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:1888)
         at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1810)
         at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1274)
         at weblogic.work.ExecuteThread.execute(ExecuteThread.java:167)
         at weblogic.work.ExecuteThread.run(ExecuteThread.java:139)
    what should i do?please help me.
    bye

    you are reason our error is slightly different is
    Error 500--Internal Server Error
    javax.servlet.ServletException: [HTTP:101249][ServletContext(id=21255917,name=BonusRoot,context-path=/BonusRoot)]: Servlet class Beans.BonusServlet for servlet BonusServlet could not be loaded because the requested class was not found in the classpath C:\bea\weblogic81\samples\domains\workshop\cgServer\.wlnotdelete\essai\war-ic.war.
    java.lang.ClassNotFoundException: Beans.BonusServlet.
         at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:799)
         at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:518)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:362)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
         at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
         at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
         at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
         at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
    We have try with your proposition but we find the same error
    we must request servlet??? because i've one
    package Beans;
    import javax.servlet.*;
    import javax.servlet.http.*;
    import java.io.*;
    import javax.naming.*;
    import javax.rmi.PortableRemoteObject;
    public class BonusServlet extends HttpServlet {
      CalcHome homecalc;
      public void init(ServletConfig config) throws ServletException{
    //Look up home interface
       try {
         InitialContext ctx = new InitialContext();
         Object objref = ctx.lookup("calcs");
         homecalc = (CalcHome)PortableRemoteObject.narrow(objref, CalcHome.class);
       } catch (Exception NamingException) {
         NamingException.printStackTrace();
      public void doGet (HttpServletRequest request,
         HttpServletResponse response)
         throws ServletException, IOException
        String socsec = null;
        int multiplier = 0;
        double calc = 0.0;
        PrintWriter out;
        response.setContentType("text/html");
        String title = "EJB Example";
        out = response.getWriter();
        out.println("<HTML><HEAD><TITLE>");
        out.println(title);
        out.println("</TITLE></HEAD><BODY>");
        try{
        Calc theCalculation;
    //Retrieve Bonus and Social Security Information
       String strMult =
               request.getParameter("MULTIPLIER");
       Integer integerMult = new Integer(strMult);
       multiplier = integerMult.intValue();
       socsec = request.getParameter("SOCSEC");
    //Calculate bonus
        double bonus = 100.00;
        theCalculation = homecalc.create();
        calc = theCalculation.calcBonus(multiplier, bonus);
        }catch(Exception CreateException){
           CreateException.printStackTrace();
    //Display Data
        out.println("<H1>Bonus Calculation</H1>");
        out.println("<P>Soc Sec: " + socsec + "<P>");
        out.println("<P>Multiplier: " + multiplier + "<P>");
        out.println("<P>Bonus Amount: " + calc + "<P>");
        out.println("</BODY></HTML>");
        out.close();
      public void destroy() {
        System.out.println("Destroy");
    }Help us please
    Thanks

  • Please help: deploy Bean with "No resource available" error for M:N relationship

    Hi all,
    I wonder any one comes across with deploying beans with M:N relationship with
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    I defined the relationship in ejb-jar.xml and dbms in the
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    ------ Error message-----
    weblogic.common.ResourceException: No resources available at weblogic.common.internal.ResourceAllocator.reserve(ResourceAllocator.
    java:568) at weblogic.common.internal.ResourceAllocator.reserve(ResourceAllocator.
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    Pool.java:127) at weblogic.jdbc.common.internal.RmiDataSource.getPoolConnection(RmiData
    Source.java:194) at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSour
    ce.java:219) at weblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.getConnection(RDBMSP
    ersistenceManager.java:317) at weblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.createDefaultDBMSTab
    le(RDBMSPersistenceManager.java:1149) at weblogic.ejb20.utils.TableVerifier.verifyTableExistsAndCreateMaybe(Ta
    bleVerifier.java:428) at weblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.verifyTablesExist(RD
    Unable to deploy EJB: CustomerBean from \ejb:
    Errors encountered ''The Container-Managed Persistence Entity EJB failed while
    creating its SQL Type Map. The error was: Invalid object name 'localcustomer_localsubscription'.
    Severity 16, State 1, Procedure 'IVM_SERVER null', Line 1', 'Error encountered
    while attempting to create Default DBMS Table: 'localcustomer_localsubscription'.
    Error Text: 'weblogic.common.ResourceException: No resource s available'.''
    ---------------End error ----------------------
    ---------------my ejb-jar.xml
    <ejb-jar>
    - <enterprise-beans>
    - <entity>
    <ejb-name>AddressBean</ejb-name>
    <local-home>customer.LocalAddressHome</local-home>
    <local>customer.LocalAddress</local>
    <ejb-class>customer.AddressBean</ejb-class>
    <persistence-type>Container</persistence-type>
    <prim-key-class>java.lang.String</prim-key-class>
    <reentrant>False</reentrant>
    - <cmp-field>
    <field-name>addressID</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>street</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>city</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>zip</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>state</field-name>
    </cmp-field>
    <primkey-field>addressID</primkey-field>
    </entity>
    - <entity>
    <ejb-name>CustomerBean</ejb-name>
    <local-home>customer.LocalCustomerHome</local-home>
    <local>customer.LocalCustomer</local>
    <ejb-class>customer.CustomerBean</ejb-class>
    <persistence-type>Container</persistence-type>
    <prim-key-class>java.lang.String</prim-key-class>
    <reentrant>False</reentrant>
    <abstract-schema-name>CustomerBean</abstract-schema-name>
    - <cmp-field>
    <field-name>customerID</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>firstName</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>lastName</field-name>
    </cmp-field>
    <primkey-field>customerID</primkey-field>
    - <query>
    - <query-method>
    <method-name>findByLastName</method-name>
    - <method-params>
    <method-param>java.lang.String</method-param>
    </method-params>
    </query-method>
    - <ejb-ql>
    - <![CDATA[ SELECT OBJECT(o) FROM CustomerBean AS o
      ]]>
    </ejb-ql>
    </query>
    - <query>
    - <query-method>
    <method-name>findByFirstName</method-name>
    - <method-params>
    <method-param>java.lang.String</method-param>
    </method-params>
    </query-method>
    - <ejb-ql>
    - <![CDATA[ SELECT OBJECT(o) FROM CustomerBean AS o
      ]]>
    </ejb-ql>
    </query>
    </entity>
    - <entity>
    <ejb-name>SubscriptionBean</ejb-name>
    <local-home>customer.LocalSubscriptionHome</local-home>
    <local>customer.LocalSubscription</local>
    <ejb-class>customer.SubscriptionBean</ejb-class>
    <persistence-type>Container</persistence-type>
    <prim-key-class>java.lang.String</prim-key-class>
    <reentrant>False</reentrant>
    <abstract-schema-name>SubscriptionBean</abstract-schema-name>
    - <cmp-field>
    <field-name>type</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>title</field-name>
    </cmp-field>
    <primkey-field>title</primkey-field>
    - <query>
    - <query-method>
    <method-name>findAllSubscriptions</method-name>
    <method-params />
    </query-method>
    - <ejb-ql>
    - <![CDATA[ SELECT OBJECT(o) FROM SubscriptionBean AS o
      ]]>
    </ejb-ql>
    </query>
    </entity>
    </enterprise-beans>
    - <relationships>
    - <ejb-relation>
    <ejb-relation-name>LocalCustomer-LocalAddress</ejb-relation-name>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalCustomer-Has-LocalAddresss</ejb-relationship-role-name>
    <multiplicity>one</multiplicity>
    - <relationship-role-source>
    <ejb-name>CustomerBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>addresses</cmr-field-name>
    <cmr-field-type>java.util.Collection</cmr-field-type>
    </cmr-field>
    </ejb-relationship-role>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalAddress-Has-LocalCustomer</ejb-relationship-role-name>
    <multiplicity>many</multiplicity>
    - <relationship-role-source>
    <ejb-name>AddressBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>customer</cmr-field-name>
    </cmr-field>
    </ejb-relationship-role>
    </ejb-relation>
    - <ejb-relation>
    <ejb-relation-name>LocalCustomer-LocalSubscription</ejb-relation-name>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalCustomers-Have-LocalSubscriptions</ejb-relationship-role-name>
    <multiplicity>many</multiplicity>
    - <relationship-role-source>
    <ejb-name>CustomerBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>subscriptions</cmr-field-name>
    <cmr-field-type>java.util.Collection</cmr-field-type>
    </cmr-field>
    </ejb-relationship-role>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalSubscriptions-Have-LocalCustomers</ejb-relationship-role-name>
    <multiplicity>many</multiplicity>
    - <relationship-role-source>
    <ejb-name>SubscriptionBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>customers</cmr-field-name>
    <cmr-field-type>java.util.Collection</cmr-field-type>
    </cmr-field>
    </ejb-relationship-role>
    </ejb-relation>
    </relationships>
    - <assembly-descriptor>
    - <container-transaction>
    - <method>
    <ejb-name>AddressBean</ejb-name>
    <method-name>*</method-name>
    </method>
    <trans-attribute>Required</trans-attribute>
    </container-transaction>
    - <container-transaction>
    - <method>
    <ejb-name>CustomerBean</ejb-name>
    <method-name>*</method-name>
    </method>
    <trans-attribute>Required</trans-attribute>
    </container-transaction>
    - <container-transaction>
    - <method>
    <ejb-name>SubscriptionBean</ejb-name>
    <method-name>*</method-name>
    </method>
    <trans-attribute>Required</trans-attribute>
    </container-transaction>
    </assembly-descriptor>
    </ejb-jar>
    ------------------End of ejb-jar.xml---------------
    Please help
    Thanks in advance
    Mike

    Hi Gaurav,
    Other applications used the same the datasource, which I used for this application,
    are running fine.
    I think there is some bug in the wlserver 6.1 to create the join table. I think
    it is the time I should ask the bea wlserver 6.1.
    Mike
    "Gaurav Khanna" <[email protected]> wrote:
    This implies that there are no database connections available. You need
    to
    check if you can log into your database instance. By default there are
    30
    connections specified for an instance in Oracle. FYI.
    "Mike" <[email protected]> wrote in message
    news:[email protected]...
    Hi all,
    I wonder any one comes across with deploying beans with M:Nrelationship with
    "No resource available".
    I defined the relationship in ejb-jar.xml and dbms in the
    weblogic-cmp-rdbms-jar.xml, but when I deployed the beans I got
    the following error
    ------ Error message-----
    weblogic.common.ResourceException: No resources available atweblogic.common.internal.ResourceAllocator.reserve(ResourceAllocator.
    java:568) atweblogic.common.internal.ResourceAllocator.reserve(ResourceAllocator.
    java:400) atweblogic.common.internal.ResourceAllocator.reserveNoWait(ResourceAllo
    cator.java:368) atweblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.j
    ava:166) atweblogic.jdbc.common.internal.ConnectionPool.reserveNoWait(Connection
    Pool.java:127) atweblogic.jdbc.common.internal.RmiDataSource.getPoolConnection(RmiData
    Source.java:194) atweblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSour
    ce.java:219) atweblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.getConnection(RDBMSP
    ersistenceManager.java:317) atweblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.createDefaultDBMSTab
    le(RDBMSPersistenceManager.java:1149) atweblogic.ejb20.utils.TableVerifier.verifyTableExistsAndCreateMaybe(Ta
    bleVerifier.java:428) atweblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.verifyTablesExist(RD
    Unable to deploy EJB: CustomerBean from \ejb:
    Errors encountered ''The Container-Managed Persistence Entity EJB failedwhile
    creating its SQL Type Map. The error was: Invalid object name'localcustomer_localsubscription'.
    Severity 16, State 1, Procedure 'IVM_SERVER null', Line 1', 'Errorencountered
    while attempting to create Default DBMS Table:'localcustomer_localsubscription'.
    Error Text: 'weblogic.common.ResourceException: No resource savailable'.''
    ---------------End error ----------------------
    ---------------my ejb-jar.xml
    <ejb-jar>
    - <enterprise-beans>
    - <entity>
    <ejb-name>AddressBean</ejb-name>
    <local-home>customer.LocalAddressHome</local-home>
    <local>customer.LocalAddress</local>
    <ejb-class>customer.AddressBean</ejb-class>
    <persistence-type>Container</persistence-type>
    <prim-key-class>java.lang.String</prim-key-class>
    <reentrant>False</reentrant>
    - <cmp-field>
    <field-name>addressID</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>street</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>city</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>zip</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>state</field-name>
    </cmp-field>
    <primkey-field>addressID</primkey-field>
    </entity>
    - <entity>
    <ejb-name>CustomerBean</ejb-name>
    <local-home>customer.LocalCustomerHome</local-home>
    <local>customer.LocalCustomer</local>
    <ejb-class>customer.CustomerBean</ejb-class>
    <persistence-type>Container</persistence-type>
    <prim-key-class>java.lang.String</prim-key-class>
    <reentrant>False</reentrant>
    <abstract-schema-name>CustomerBean</abstract-schema-name>
    - <cmp-field>
    <field-name>customerID</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>firstName</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>lastName</field-name>
    </cmp-field>
    <primkey-field>customerID</primkey-field>
    - <query>
    - <query-method>
    <method-name>findByLastName</method-name>
    - <method-params>
    <method-param>java.lang.String</method-param>
    </method-params>
    </query-method>
    - <ejb-ql>
    - <![CDATA[ SELECT OBJECT(o) FROM CustomerBean AS o
    ]]>
    </ejb-ql>
    </query>
    - <query>
    - <query-method>
    <method-name>findByFirstName</method-name>
    - <method-params>
    <method-param>java.lang.String</method-param>
    </method-params>
    </query-method>
    - <ejb-ql>
    - <![CDATA[ SELECT OBJECT(o) FROM CustomerBean AS o
    ]]>
    </ejb-ql>
    </query>
    </entity>
    - <entity>
    <ejb-name>SubscriptionBean</ejb-name>
    <local-home>customer.LocalSubscriptionHome</local-home>
    <local>customer.LocalSubscription</local>
    <ejb-class>customer.SubscriptionBean</ejb-class>
    <persistence-type>Container</persistence-type>
    <prim-key-class>java.lang.String</prim-key-class>
    <reentrant>False</reentrant>
    <abstract-schema-name>SubscriptionBean</abstract-schema-name>
    - <cmp-field>
    <field-name>type</field-name>
    </cmp-field>
    - <cmp-field>
    <field-name>title</field-name>
    </cmp-field>
    <primkey-field>title</primkey-field>
    - <query>
    - <query-method>
    <method-name>findAllSubscriptions</method-name>
    <method-params />
    </query-method>
    - <ejb-ql>
    - <![CDATA[ SELECT OBJECT(o) FROM SubscriptionBean AS o
    ]]>
    </ejb-ql>
    </query>
    </entity>
    </enterprise-beans>
    - <relationships>
    - <ejb-relation>
    <ejb-relation-name>LocalCustomer-LocalAddress</ejb-relation-name>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalCustomer-Has-LocalAddresss</ejb-relationshi
    p-role-name>
    <multiplicity>one</multiplicity>
    - <relationship-role-source>
    <ejb-name>CustomerBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>addresses</cmr-field-name>
    <cmr-field-type>java.util.Collection</cmr-field-type>
    </cmr-field>
    </ejb-relationship-role>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalAddress-Has-LocalCustomer</ejb-relationship
    -role-name>
    <multiplicity>many</multiplicity>
    - <relationship-role-source>
    <ejb-name>AddressBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>customer</cmr-field-name>
    </cmr-field>
    </ejb-relationship-role>
    </ejb-relation>
    - <ejb-relation>
    <ejb-relation-name>LocalCustomer-LocalSubscription</ejb-relation-name>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalCustomers-Have-LocalSubscriptions</ejb-rela
    tionship-role-name>
    <multiplicity>many</multiplicity>
    - <relationship-role-source>
    <ejb-name>CustomerBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>subscriptions</cmr-field-name>
    <cmr-field-type>java.util.Collection</cmr-field-type>
    </cmr-field>
    </ejb-relationship-role>
    - <ejb-relationship-role>
    <ejb-relationship-role-name>LocalSubscriptions-Have-LocalCustomers</ejb-rela
    tionship-role-name>
    <multiplicity>many</multiplicity>
    - <relationship-role-source>
    <ejb-name>SubscriptionBean</ejb-name>
    </relationship-role-source>
    - <cmr-field>
    <cmr-field-name>customers</cmr-field-name>
    <cmr-field-type>java.util.Collection</cmr-field-type>
    </cmr-field>
    </ejb-relationship-role>
    </ejb-relation>
    </relationships>
    - <assembly-descriptor>
    - <container-transaction>
    - <method>
    <ejb-name>AddressBean</ejb-name>
    <method-name>*</method-name>
    </method>
    <trans-attribute>Required</trans-attribute>
    </container-transaction>
    - <container-transaction>
    - <method>
    <ejb-name>CustomerBean</ejb-name>
    <method-name>*</method-name>
    </method>
    <trans-attribute>Required</trans-attribute>
    </container-transaction>
    - <container-transaction>
    - <method>
    <ejb-name>SubscriptionBean</ejb-name>
    <method-name>*</method-name>
    </method>
    <trans-attribute>Required</trans-attribute>
    </container-transaction>
    </assembly-descriptor>
    </ejb-jar>
    ------------------End of ejb-jar.xml---------------
    Please help
    Thanks in advance
    Mike

  • Rendering an error-display - Please help!!

    Hi everyone,
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    Nille

    Finally!!!
    Thank you very much.
    Would it be possible to accomplish something like this:
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