[AXIS2-2775] nullpointer by invoking web service and RPCMessageReceiver problem

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Environment: window xp; jdk5; axis2; eclipse3.2
• Assignee: Deepal Jayasinghe
• Reporter: haha
• Created: 06/Jun/07 14:13
• Updated: 04/Jul/07 06:52
• Resolved: 04/Jul/07 06:52

Description

I have the Problem by invoking the Web Service with axis2,
------------------------Client:
public void MyConnection(String user, String passwd)throws RemoteException{
Options options = new Options();
options.setManageSession(true);
RPCServiceClient serviceClient = new RPCServiceClient();
options.setTo(targetEPR);
options.setAction("urn:MyConnection");
options.setExceptionToBeThrownOnSOAPFault(false);
serviceClient.setOptions(options);
QName opSet = new QName("http://services.solver.nx.wp.com/xsd", "MyConncetion");
Object response = serviceClient.invokeBlocking(opSet,new Object[]

{user,passwd}

);
if(response instanceof AxisFault)

{ throw (RemoteException)response;}

}
-----------------------------------------------------------------------------
-------------------------Service
public void MyConnection(String user, String passwd) throws AxisFault
{
String connString = Const.getCONNECTIONSTRING();
if(connString == null)

{ throw new AxisFault("Unknown server defined in web.xml."); }

MessageContext mctx =MessageContext.getCurrentMessageContext();
TransportListener listener = mctx.getTransportIn().getReceiver();
SessionContext session = listener.getSessionContext(mctx);
MessageContext.getCurrentMessageContext().setSessionContext(session);
System.out.println("the session is:" + session +" ;and the sessionpropertiers is: "+session.getProperties().size());
session.getProperties().remove(Const.SESSIONUSER);
session.getProperties().remove(Const.SESSIONCUSTOMER);

Connection conn;
try

{ Class.forName(Const.DBDRIVERCLASS); }

catch(ClassNotFoundException cnfe)

{ terminate(); throw new AxisFault("Database Driver-class not found."); }

try

{ conn = DriverManager.getConnection(connString, user, passwd); }

catch(SQLException sqle)

{ terminate(); throw new AxisFault("Connection as admin could not be established.\n" + connString + " User: " + user); }

DBHandler dbHandler = new DBHandler();
try
{
ResultSet result = dbHandler.performSelect(Const.getDBSQLUSERCUST(user), conn);
if(!result.next())

{ conn.close(); terminate(); throw new AxisFault("The user is not linked with a customer."); }

session.setProperty(Const.SESSIONUSER, result.getString(Const.DBCOLUSERNAME));
session.setProperty(Const.SESSIONCUSTOMER, new Integer(result.getInt(Const.DBCOLCUSTID)));
}
catch(SQLException sqle)
{
try

{ conn.close(); }

catch(SQLException sqle2)

{ terminate(); throw new AxisFault("Error while closing the connection."); }

terminate();
throw new AxisFault("Error while getting user and customer from database.");
}
try

{ conn.close(); }

catch(SQLException sqle)

{ terminate(); throw new AxisFault("Error while closing the connection."); }

}
----------------------------------------------------------
------------------------------------------the Problem:
sessionContext.getproperties() is always null
------------------------------------------and:
06.06.2007 15:42:43 org.apache.axis2.rpc.receivers.RPCMessageReceiver invokeBusinessLogic
SCHWERWIEGEND: Exception occurred while trying to invoke service method estConnection
java.lang.NullPointerException
at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:127)
at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.receive(AbstractInOutSyncMessageReceiver.java:39)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:144)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:279)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:116)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)
-------------------------------------------
has any one idears?
Help, pleas

Issue Links

• relates to: AXIS2-2744 Testing RPCMessageReceiver with complex data using ADB generated test case