2 local ejb and one remote session bean in same server - java client
idea was -
to create a new stateless session bean that will talk to the two entity beans. although the session bean will expose its method through a remote interface, the communication betweenn the session bean and the entity beans will be through a local interface. the assumptions is that all three ejbs are running in the same JVM.
so -
all three ejbs complied properly.
but -
when i tried to test with one 'sample test client' then this is the error i get.
please please -
can you look into the below error and let me know what possibly i'm doing wrong. i've been trying for last 4 days and can't figure out.
thanks a lot.
D:\jdev9052\jdk\bin\javaw.exe -ojvm -classpath D:\jdev9052\jdev\mywork\H&K\EJBApp\classes;D:\jdev9052\j2ee\home\lib\activation.jar;D:\jdev9052\j2ee\home\lib\ejb.jar;D:\jdev9052\j2ee\home\lib\jaas.jar;D:\jdev9052\j2ee\home\lib\jaxp.jar;D:\jdev9052\j2ee\home\lib\jcert.jar;D:\jdev9052\j2ee\home\lib\jdbc.jar;D:\jdev9052\j2ee\home\lib\jms.jar;D:\jdev9052\j2ee\home\lib\jndi.jar;D:\jdev9052\j2ee\home\lib\jnet.jar;D:\jdev9052\j2ee\home\lib\jsse.jar;D:\jdev9052\j2ee\home\lib\jta.jar;D:\jdev9052\j2ee\home\lib\mail.jar;D:\jdev9052\j2ee\home\lib\servlet.jar;D:\jdev9052\j2ee\home\oc4j.jar;D:\jdev9052\opmn\lib\optic.jar;D:\jdev9052\jdev\system9.0.5.2.1618\oc4j-config\.client;D:\jdev9052\lib\xmlparserv2.jar;D:\jdev9052\lib\xmlcomp.jar TeamStaffSessionEJBClient
context initialized
javax.naming.NamingException: Lookup error: java.net.ConnectException: Connection refused: connect; nested exception is:
java.net.ConnectException: Connection refused: connect [Root exception is java.net.ConnectException: Connection refused: connect]
at com.evermind.server.rmi.RMIContext.lookup(RMIContext.java:153)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at TeamStaffSessionEJBClient.main(TeamStaffSessionEJBClient.java:17)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:305)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:171)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:158)
at java.net.Socket.connect(Socket.java:452)
at java.net.Socket.connect(Socket.java:402)
at java.net.Socket.<init>(Socket.java:309)
at java.net.Socket.<init>(Socket.java:153)
at com.evermind.server.rmi.RMIConnection.connect(RMIConnection.java:2216)
at com.evermind.server.rmi.RMIConnection.lookup(RMIConnection.java:1692)
at com.evermind.server.rmi.RMIServer.lookup(RMIServer.java:678)
at com.evermind.server.rmi.RMIContext.lookup(RMIContext.java:134)
... 2 more
Process exited with exit code 0.
After you drop an ejb into the designer, you'll see a <ejb>Client1 instance created for the ejb in the backing bean (i.e. Page1.java). The client instance is a wrapper for the ejb. It contains all the remote methods available on your ejb. In your web app, you can invoke any methods on the client instance as if you're calling methods on a regular java object. The wrapper class knows how to invoke the corresponding methods on the ejb for you.
-dongmei
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Message was edited by:
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2006-11-03 10:17:18,319 ERROR [STDERR] at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
As soon as I uncomment that line everything works fine.
I have seen this type of exception before when I tried invoking the ejb on a different computer as well. I am not sure how to see what is the wrapper class for the object since the call to object.getClass().getName() prints something like this $Proxy184
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at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:141)
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at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:604)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:542)
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|#]
[#|2006-10-02T13:52:55.390+0200|INFO|sun-appserver-pe8.0.0_01|javax.enterprise.system.stream.out|_ThreadID=11;|2006-10-02 13:52:55 [8080-Processor4] INFO .va.ejb.testrh.sb.TestRemoteEjbBean - RemoteException when getting BrickFacade. Message:Invalid URL or IOR: corbaloc:iiop://161.90.176.213:3700
javax.naming.ConfigurationException: Invalid URL or IOR: corbaloc:iiop://161.90.176.213:3700 [Root exception is org.omg.CORBA.BAD_PARAM: vmcid: SUN minor code: 603 completed: No]
at com.sun.jndi.cosnaming.CNCtx.setOrbAndRootContext(CNCtx.java:367)
at com.sun.jndi.cosnaming.CNCtx.initUsingCorbanameUrl(CNCtx.java:321)
at com.sun.jndi.cosnaming.CNCtx.initUsingUrl(CNCtx.java:247)
at com.sun.jndi.cosnaming.CNCtx.createUsingURL(CNCtx.java:85)
at com.sun.jndi.url.iiop.iiopURLContextFactory.getUsingURLIgnoreRest(iiopURLContextFactory.java:56)
at com.sun.jndi.url.iiop.iiopURLContext.getRootURLContext(iiopURLContext.java:44)
at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:182)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at com.sun.enterprise.naming.NamingManagerImpl.lookup(NamingManagerImpl.java:702)
at com.sun.enterprise.naming.java.javaURLContext.lookup(javaURLContext.java:108)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at de.emilberlinerstudios.va.ejb.testrh.sb.TestRemoteEjbBean.getBrickFacade(TestRemoteEjbBean.java:108)
at de.emilberlinerstudios.va.ejb.testrh.sb.TestRemoteEjbBean.startTest(TestRemoteEjbBean.java:79)
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 com.sun.enterprise.security.SecurityUtil$2.run(SecurityUtil.java:146)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.enterprise.security.application.EJBSecurityManager.doAsPrivileged(EJBSecurityManager.java:930)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:151)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:128)
at $Proxy7.startTest(Unknown Source)
at de.emilberlinerstudios.va.ejb.testrh.sb._TestRemoteEjb_Stub.startTest(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.forte4j.j2ee.ejbtest.webtest.InvocableMethod$MethodIM.invoke(InvocableMethod.java:231)
at com.sun.forte4j.j2ee.ejbtest.webtest.EjbInvoker.getInvocationResults(EjbInvoker.java:96)
at com.sun.forte4j.j2ee.ejbtest.webtest.DispatchHelper.getForward(DispatchHelper.java:189)
at org.apache.jsp.dispatch_jsp._jspService(dispatch_jsp.java:75)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:102)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:282)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:263)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:210)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
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 org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:246)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:500)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:268)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:236)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:145)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:141)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:109)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:214)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:168)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:109)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:144)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:109)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:133)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:107)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:539)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:107)
at com.sun.enterprise.webservice.EjbWebServiceValve.invoke(EjbWebServiceValve.java:134)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:107)
at com.sun.enterprise.security.web.SingleSignOn.invoke(SingleSignOn.java:272)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:107)
at com.sun.enterprise.web.VirtualServerValve.invoke(VirtualServerValve.java:209)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:107)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:114)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:109)
at com.sun.enterprise.web.VirtualServerMappingValve.invoke(VirtualServerMappingValve.java:166)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:107)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:936)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:165)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:683)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:604)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:542)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:647)
at java.lang.Thread.run(Thread.java:534)
Caused by: org.omg.CORBA.BAD_PARAM: vmcid: SUN minor code: 603 completed: No
at com.sun.corba.ee.impl.logging.NamingSystemException.insBadAddress(NamingSystemException.java:148)
at com.sun.corba.ee.impl.logging.NamingSystemException.insBadAddress(NamingSystemException.java:166)
at com.sun.corba.ee.impl.naming.namingutil.CorbalocURL.badAddress(CorbalocURL.java:104)
at com.sun.corba.ee.impl.naming.namingutil.CorbalocURL.handleColon(CorbalocURL.java:140)
at com.sun.corba.ee.impl.naming.namingutil.CorbalocURL.handleIIOPColon(CorbalocURL.java:115)
at com.sun.corba.ee.impl.naming.namingutil.CorbalocURL.<init>(CorbalocURL.java:67)
at com.sun.corba.ee.impl.naming.namingutil.INSURLHandler.parseURL(INSURLHandler.java:41)
at com.sun.corba.ee.impl.resolver.INSURLOperationImpl.operate(INSURLOperationImpl.java:103)
at com.sun.corba.ee.impl.orb.ORBImpl.string_to_object(ORBImpl.java:774)
at com.sun.jndi.cosnaming.CNCtx.setOrbAndRootContext(CNCtx.j|#]Problem solved:
configuration in jndi-name was wrong:
<jndi-name>corbaname:iiop:161.90.176.213:3700#ejb/BrickFacade</jndi-name> -
Calling EJB 3.0 Stateless Session Bean
Dear all,
I created a stateless session bean with a hello world method on it. Now i want to call the method from a BeanDecorator class, through a getter metod. When i use the jndi lookup in my getter, i can call the helloWorld method without a problem. However, when i dont use the jndi lookup, and only use the @EJB annotation, i always get a nullpointer.
This is working:
InitialContext ic = new InitialContext();
test = (TestLocal)ic.lookup("test.be/ear~bd/LOCAL/TestBean/"+TestLocal.class.getName());
test.helloWorld()
This gives nullpointer:
@EJB
private TestLocal test;
test.helloWorld();
What is the correct way to consume session beans without having to explicitly code the jndi lookup?
Kind regards.Hi,
any annotation like this can be used only in "managed classes" like Session Beans, Servlets etc. Managed classes are those classes managed by the J2EE server. Managed here means, lifetime controlled by server.
You can find this in J2EE specification.
Frank -
NameNotFoundException EJB 3.0 Stateless Session Bean
Hi i am new to ejb 3.0 as well as ejb actually. I encountered an error trying out a small stateless session bean application.
23:15:02,312 ERROR [STDERR] javax.naming.NameNotFoundException: com.afis.ct.ri.session.ejb.ReportIncidentSession not bound
23:15:02,312 ERROR [STDERR] at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
23:15:02,312 ERROR [STDERR] at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
23:15:02,312 ERROR [STDERR] at org.jnp.server.NamingServer.getObject(NamingServer.java:543)
23:15:02,312 ERROR [STDERR] at org.jnp.server.NamingServer.lookup(NamingServer.java:296)
23:15:02,312 ERROR [STDERR] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:625)
23:15:02,312 ERROR [STDERR] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
23:15:02,312 ERROR [STDERR] at javax.naming.InitialContext.lookup(InitialContext.java:351)
23:15:02,312 ERROR [STDERR] at com.afis.ct.servlets.ri.ValidateIdentityServlet.validateIdentity(ValidateIdentityServlet.java:64)
23:15:02,312 ERROR [STDERR] at com.afis.ct.servlets.ri.ValidateIdentityServlet.processRequest(ValidateIdentityServlet.java:35)
23:15:02,312 ERROR [STDERR] at com.afis.ct.servlets.ri.ValidateIdentityServlet.doGet(ValidateIdentityServlet.java:19)
23:15:02,312 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
23:15:02,312 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
23:15:02,328 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
23:15:02,328 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
23:15:02,328 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
23:15:02,328 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
23:15:02,328 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
23:15:02,328 ERROR [STDERR] at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
23:15:02,328 ERROR [STDERR] at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
23:15:02,328 ERROR [STDERR] at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
23:15:02,328 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)My remote interface looks like
package com.afis.ct.ri.session.ejb;
import javax.ejb.Remote;
@Remote
public interface ReportIncidentSession {
public boolean isIdentityValid(String identity);
}My bean looks like
package com.afis.ct.ri.session.ejb;
import javax.ejb.Stateless;
@Stateless
public class ReportIncidentSessionBean implements ReportIncidentSession {
public ReportIncidentSessionBean() {
super();
public boolean isIdentityValid(String identity) {
return true;
}Finally i am calling from a servlet which is part of a web application under the same hood(ear) as the ejb jar file.
InitialContext ctx=new InitialContext();
ReportIncidentSession session=(ReportIncidentSession)ctx.lookup(ReportIncidentSession.class.getName());
return session.isIdentityValid(identity);I have done nothing more than making sure there is no compilation error, and i feel some mandatory steps are missing.. So thanks for any help!
Marvelous.Hi DRS, i tried your recommendation and injected the following on top of my servlet class:
EJB(name="ReportIncidentSessionBean", businessInterface=ReportIncidentSession.class)
public class ValidateIdentityServlet extends HttpServlet implements
ValidateIdentity {The original beanInterface you mentioned had an error.
And upon deployment, JBoss wasn't able to generate a deployment descriptor hinting at the annotations.
23:50:08,765 ERROR [MainDeployer] Could not create deployment: file:/C:/Program Files/jboss-4.0.4.GA/server/Marvelous/deploy/Avian Flu Information System.ear/Avian Flu Information System Web.war/
java.lang.UnsupportedOperationException: FIXME: should ignore annotations for missing classes
at org.jboss.lang.AnnotationHelper.getAnnotations(AnnotationHelper.java:98)
at org.jboss.lang.AnnotationHelper.getAnnotation(AnnotationHelper.java:75)
at org.jboss.lang.AnnotationHelper.isAnnotationPresent(AnnotationHelper.java:60)
at org.jboss.ws.server.WebServiceDeployerJSE.isWebserviceDeployment(WebServiceDeployerJSE.java:152)
at org.jboss.ws.server.WebServiceDeployer.create(WebServiceDeployer.java:101)
at org.jboss.ws.server.WebServiceDeployerJSE.create(WebServiceDeployerJSE.java:66)
at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.create(SubDeployerInterceptorSupport.java:180)
at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:91)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy49.create(Unknown Source)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:953)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:943)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:807)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy6.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:610)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225)Your input is greatly appreciated! -
Please help on create files and directories in Session Bean
Hi,
I am trying to create files and directories at run time from a session bean. Since EJB 2.0 prohibit the use of the java.io.* package. The only thing that I know how is to use the URLConnection. After getting a connection through URL. I may use the getOutputStream() to get a output stream to write to the HTTP server. But the getOutputStream() returns an OutputStream object which is one of the package in the java.io package. Since I need to create file and directory, I need to use the FileOutputStream that is also under the java.io package.
Can someone give me a hint what should I do. Here is a directory and the file that I may need to create;
Directory1/Drictory2/myFiles.au
Thank you in advance, your help is greatly appreciated.From 24.1.2 (Programming Restrictions) of the EJB 2.0 spec:
� An enterprise bean must not use the java.io package to attempt to access files and directories in the file system.
The file system APIs are not well-suited for business components to access data. Business components should use a resource manager API, such as JDBC, to store data.
You might want to look at the File System Service Provider in JNDI for an alternative approach. I have never used an FSSP though. -
Odd marshalling problems with EJB 3.0 stateless session bean
Hello,
I began encountering marshalling exceptions when invoking methods on a previously functionining facade bean. The problem seems to be almost arbitrary, in that certain packages receive marshalling exceptions, while others do not (my main client started failing, but then I realized that a simple test class was still working, along with oddly JSFs that invoke that main client, which fails outside of that scope). Is there some config issue with stateless session beans (in 3.0) that I might be missing? There are no duplicate versions of these class; they have not been modified; they've been compiled with the current IDE. Any help would be appreciated. Thanks.
full stack trace:
com.evermind.reflect.UndeclaredExceptionTypeException: oracle.oc4j.rmi.OracleRemoteException
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
oracle.oc4j.rmi.OracleRemoteException: Invocation error: java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:142)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
Nested exception is:
java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER(RMICall.java:109)
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:128)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
oracle.oc4j.rmi.OracleRemoteException: Invocation error: java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:142)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
Nested exception is:
java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER(RMICall.java:109)
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:128)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)Hello,
I began encountering marshalling exceptions when invoking methods on a previously functionining facade bean. The problem seems to be almost arbitrary, in that certain packages receive marshalling exceptions, while others do not (my main client started failing, but then I realized that a simple test class was still working, along with oddly JSFs that invoke that main client, which fails outside of that scope). Is there some config issue with stateless session beans (in 3.0) that I might be missing? There are no duplicate versions of these class; they have not been modified; they've been compiled with the current IDE. Any help would be appreciated. Thanks.
full stack trace:
com.evermind.reflect.UndeclaredExceptionTypeException: oracle.oc4j.rmi.OracleRemoteException
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
oracle.oc4j.rmi.OracleRemoteException: Invocation error: java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:142)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
Nested exception is:
java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER(RMICall.java:109)
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:128)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
oracle.oc4j.rmi.OracleRemoteException: Invocation error: java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:142)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63)
Nested exception is:
java.rmi.UnmarshalException: Error deserializing return-value: java.io.InvalidClassException: com.jwt.gui.menus.persistence.ViewRight; local class incompatible: stream classdesc serialVersionUID = 2365320765203750319, local class serialVersionUID = -8750611773395720631
at com.evermind.server.rmi.RMICall.EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER(RMICall.java:109)
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:128)
at com.evermind.server.rmi.RMIClientConnection.obtainRemoteMethodResponse(RMIClientConnection.java:472)
at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:416)
at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
at com.evermind.server.ejb.StatelessSessionRemoteInvocationHandler.invoke(StatelessSessionRemoteInvocationHandler.java:43)
at __Proxy1.findAllViewRight(Unknown Source)
at com.jwt.gui.menus.beans.ViewRightBean.<init>(ViewRightBean.java:34)
at com.jwt.gui.menus.beans.ViewRightBean.main(ViewRightBean.java:63) -
How create EJB 2.1 Stateful Session Bean in a EJB 3.0 Session Bean
Hi All,
We have been developing on EJB 2.1. We are now adding a module on EJB 3.0.
How can we "create" a stateful session bean with create method signature similar to create(String id)?
We have tried
// this is the remote interface
@EJB AddressBean abean;
But not working
Any help will be appreciated.There is no explicit create() call for EJB 3.0 session beans. It doesn't really matter though
since you can accomplish the same thing by defining your own business method to act
as an initializer for whatever state you'd like. E.g.
@Remote
public interface FooInterface {
public void initialize(String id);
// ... other business methods
@EJB FooInterface fooRef;
fooRef.initialize("foo");
--ken
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