Program works fine in plain way, but doesn't work after deployment

[Former Member]

Hello, everyone. I've encounted a problem puzzled me for a really long time.

Technical Senario:

Computer A:

Windows 2000 Server

XI 3.0

CICS Client

Computer B:

AIX UNIX

CICS Server

At first we write a plain java program (using j2sdk 1.4.2) and it does work, but after we deployed EAR project which contains code similiar to the plain java code to the J2EE engine, it threw out exception.

The program get time from a application name SAPPROG5 in CICS Server(on the Computer B) through CICS Client, which is a application installed on the Computer A.

P.S: 1. The CICS Client we installed is a windows application which may register something in the operation system level.

2. The CICS document mentions that by using the CICS Transaction Gateway, which is a component of CICS Client, JNI(Java Native Interface) technology is used.

3. CICS is product of IBM.

The plain Java code:

	import easycics.*;
	public class MainClass {
		public static void main(String[] args) {
			String l_time  = new String();	
			try {
				App oEc = new easycics.App();					
				App.bDebug = true; 
				oEc.strJGateName = "local:";
				oEc.ConnectServer("CICSCTG", "SAPUSER", "SAPUSER");
				oEc.CallProgramAndCommit("SAPPROG5"); 			
				l_time = oEc.GetValue("TIME");								
			} catch (ServerErrorException e) {
				e.printStackTrace();
			}
			System.out.println(l_time);		
		}
	}

The code in the EJB project:

	import easycics.*;
	public class MITime_PortTypeImpl
		extends com.sap.aii.proxy.xiruntime.core.AbstractProxy
		implements MITime_PortType {

		public java.lang.String mITime(java.lang.String mTQuery)
			throws
				cicsJavaTestByYining.FMTTime_Message_Exception,
				com.sap.aii.proxy.xiruntime.core.SystemFaultException,
				com.sap.aii.proxy.xiruntime.core.ApplicationFaultException {
			//throw new RuntimeException();
			String l_time = new String();
			try {
				App oEc = new easycics.App();
				App.bDebug = true;
				oEc.strJGateName = "local:";
				oEc.ConnectServer("CICSCTG", "SAPUSER", "SAPUSER"); //Exception is threw here
				oEc.CallProgramAndCommit("SAPPROG5");
				l_time = oEc.GetValue("TIME");
			} catch (ServerErrorException se) {
			}
			return l_time;
		}
	}

exception:

return msg: Can not Connect to the server!

error code: -1l

ocalized msg:

Can not Connect to the server!

server error toString: easycics.ServerErrorException:

Can not Connect to the server!

stackTrace: easycics.App.ConnectServer(App.java:894)

cicsJavaTestByYining.MITime_PortTypeImpl.mITime(MITime_PortTypeImpl.java:27)

cicsJavaTestByYining.MITime_PortTypeBean.invokeMethod(MITime_PortTypeBean.java:34)

com.sap.aii.proxy.xiruntime.core.AbstractProxyInboundRemote4ObjectImpl0.invokeMethod(AbstractProxyInboundRemote4ObjectImpl0.java:119)

sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

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

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

com.sap.engine.services.rmi_p4.reflect.LocalInvocationHandler.invokeInternal(LocalInvocationHandler.java:74)

com.sap.engine.services.rmi_p4.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:53)

$Proxy230.invokeMethod(Unknown Source)

sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

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

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

com.sap.engine.services.ejb.session.stateless_sp5.ObjectStubProxyImpl.invoke(ObjectStubProxyImpl.java:187)

$Proxy231.invokeMethod(Unknown Source)

com.sap.aii.proxy.xiruntime.core.XmlProxyJ2EE.call(XmlProxyJ2EE.java:169)

com.sap.aii.proxy.xiruntime.core.XmlProxy$ProxyBeanCaller.call(XmlProxy.java:225)

com.sap.aii.proxy.xiruntime.core.XmlProxy.processRequest(XmlProxy.java:194)

com.sap.aii.proxy.xiruntime.core.XmlInbound.processRequestMessage(XmlInbound.java:126)

com.sap.aii.proxy.xiruntime.core.XmlInbound.processMessage(XmlInbound.java:83)

com.sap.aii.proxy.xiruntime.sbeans.JPRBean.onMessage(JPRBean.java:158)

com.sap.aii.proxy.xiruntime.sbeans.JPRLocalLocalObjectImpl0.onMessage(JPRLocalLocalObjectImpl0.java:179)

com.sap.aii.af.ra.ms.impl.ServicesImpl.deliver(ServicesImpl.java:253)

com.sap.aii.adapter.xi.ms.XIEventHandler.onDeliver(XIEventHandler.java:838)

com.sap.aii.af.ra.ms.impl.core.queue.RequestConsumer.onMessage(RequestConsumer.java:112)

com.sap.aii.af.ra.ms.impl.core.queue.Queue.run(Queue.java:795)

com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

java.security.AccessController.doPrivileged(Native Method)

com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)

com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160)

[Former Member · Accepted solution]

The exception is thrown because the program can not connect to the server. It doesn't necessarily mean that there is anything wrong with your code. Have you checked all your connection parameters to the SAP server or to the server you are connecting to (if middleware handles communication)?

SAP server requires these parameters

Host

Client

Username

Password

System number

language (en by default)

[Former Member · Accepted solution]

Hi Dionisios,

actually the "server" here is not a sap. It is a CICS server.

Since I can connect to the "server" normally when using a plain java in the same computer, I don't think there's anything wrong with the parameters.

I've asked an expert of CICS about this question, and he told me that maybe SAP J2EE Engine cannot find centain c++ lib in the operation level.

Later I found SAP J2EE Engine will add "path=" parameter of windows 2000 to it's lib path, so I tried to add all "lib=" parameter into "path=" parameter, but after restart the operation system and SAP instance, the problem is still here.