java.lang.NullPointerException at org.apache.axis.client.Service.getEngineConfiguration

[Phani Sekhar <ph...@masconit.com>]

Hi all,
 
I have a web application, which upon making a request, processes the
request and makes a soap request to the axis webservice deployed in the
same web server. 
 
The problem I am facing now is....
Whenever I make a request to the servlet, the webapp initialization and
request processing goes on fine.....  but it is giving a Null pointer
exception while making the soap request. I debugged it and found that
the exception is being raised while creating the object of Service
class. I have attached the stack trace.
 
I have searched in google and didn't find any important information
regarding this problem. 
Some of them have a similar problem when they try to restart the webapp
using Tomcat Manager.  But, even if I start the Tomcat everytime I test
it, I am getting the same exception.
 
I am using Tomcat 4.1.30 and Axis 1.4.
 
Please help.
 
Thx in Advance
Phani Sekhar
 
java.lang.NullPointerException
                at
org.apache.axis.client.Service.getEngineConfiguration(Service.java:813)
                at
org.apache.axis.client.Service.getAxisClient(Service.java:104)
                at
org.apache.axis.client.Service.<init>(Service.java:113)
                at
com.roamware.rwprov.RWProvisionerSoapInterfaceServiceLocator.<init>(RWPr
ovisionerSoapInterfaceServiceLocator.java:14)
                at
com.roamware.rwprov.pln.PLNPeerSOAPClient.getSubscriberDetails(PLNPeerSO
APClient.java:101)
                at
com.roamware.rwprov.RWServletProvisioner.processRequest(RWServletProvisi
oner.java:181)
                at
com.roamware.rwprov.RWProvisioningServlet.processRequest(RWProvisioningS
ervlet.java:63)
                at
com.roamware.rwprov.RWProvisioningServlet.doPost(RWProvisioningServlet.j
ava:95)
                at
javax.servlet.http.HttpServlet.service(HttpServlet.java:716)
                at
javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
                at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:200)
                at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:146)
                at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:209)
                at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:596)
                at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
33)
                at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
                at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:144)
                at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:596)
                at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.ja
va:199)
                at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:594)
                at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
33)
                at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
                at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:235
8)
                at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:133)
                at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:596)
                at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa
lve.java:118)
                at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:594)
                at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:116)
                at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:594)
                at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
33)
                at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
                at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:127)
                at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:596)
                at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
33)
                at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
                at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
                at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:79
9)
                at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processC
onnection(Http11Protocol.java:705)
                at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:57
7)
                at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool
.java:683)
                at java.lang.Thread.run(Thread.java:534)