JSP to EJB Communication

[Kishori Sharan]

Setup:
1. I have two EAServers running on two different machines.
2. One EAServer has many EJBs and PB components deployed.
3. Another EAServer has a web application
4. Using EAServer 4.2 and EJB 2.0 session beans

I want to access EJB and PB components on one server from another server
which runs web application. I am able to access PB components from a JSP.
However, I am not able to access EJB, which is on different server, from
JSP, which is not on teh same server as EJB.

Here is the code that I have tried in my JSP..
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
java.util.Properties p = new java.util.Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sybase.ejb.InitialContextFactory");
p.put(Context.PROVIDER_URL, server);
p.put(Context.SECURITY_PRINCIPAL, userId);
p.put(Context.SECURITY_CREDENTIALS, password);

// Now create an InitialContext that uses the properties
Context ctx = new InitialContext(p);
String compName = "SupportServices/XMLService";
java.lang.Object obj = ctx.lookup(compName);
XMLServiceHome home = (XMLServiceHome)PortableRemoteObject.narrow(obj,
XMLServiceHome.class);
XMLService xml = home.create();
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////

I am able to access EBJs, which run on the same server as JSP. I get the
following exception. I have also tried configuring EJB Ref for web
applicatio and using "java:comp/env/SupportServices/XMLService" format of
component name. It does not work either.

javax.naming.NamingException:
NotFound:java:comp/env/SupportServices/XMLService. Root exception is
javax.naming.NamingException: NotFound:SupportServices/XMLService. Root
exception is org.omg.CORBA.OBJECT_NOT_EXIST: minor code: 0 completed: No
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:308)
at java.lang.Class.newInstance(Class.java:261)
at
com.sybase.CORBA.iiop.Connection.createSystemException(Connection.java:5238)
at com.sybase.CORBA.iiop.Connection.invoke(Connection.java:3602)
at com.sybase.CORBA.ObjectRef._is_a(ObjectRef.java:411)
at
com.sybase.ejb.CosNaming.NamingContextHelper.narrow(NamingContextHelper.java:33)
at com.sybase.ejb.NamingContext.lookup(NamingContext.java:734)
at com.sybase.ejb.NamingContext.parseServletData(NamingContext.java:877)
at com.sybase.ejb.NamingContext.lookupServletData(NamingContext.java:856)
at com.sybase.ejb.NamingContext.lookup(NamingContext.java:703)
at javax.naming.InitialContext.lookup(InitialContext.java:354)
at
com.sybase.jsp.webtestharness_0005fverify_0005feaserver_0005flogin$jsp._jspService(webtestharness_0005fverify_0005feaserver_0005flogin$jsp.java:106)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:268)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:461)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:553)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sybase.jaguar.servlet.JagServlet.service(JagServlet.java:657)
at
com.sybase.jaguar.servlet.JagRequestDispatcher.service(JagRequestDispatcher.java:922)
at com.sybase.jaguar.servlet.JagWebResource.service(JagWebResource.java:90)
at
com.sybase.jaguar.servlet.JagFilterChain.doFilter(JagFilterChain.java:131)
at com.sybase.jaguar.servlet.ServletEngine._service(ServletEngine.java:815)
at com.sybase.jaguar.servlet.ServletEngine.service(ServletEngine.java:357)
at
com.sybase.jaguar.servlet.ServletServiceImpl.doService(ServletServiceImpl.java:52)
at
com.sybase.jaguar.servlet._sk_JaguarServlet_ServletService.invoke(_sk_JaguarServlet_ServletService.java:151)