Bonjour à tous,
J'ai eu un problème lors du test client d'un web service déployé sous weblogic.
L'erreur retournée est :

<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
<S:Body>
<S:Fault xmlns:ns4="http://www.w3.org/2003/05/soap-envelope">
<faultcode>S:Server</faultcode>
<faultstring>java.lang.NullPointerException</faultstring>
<detail>
<ns2:exception xmlns:ns2="http://jax-ws.dev.java.net/" class="java.lang.NullPointerException" note="To disable this feature, set com.sun.xml.ws.fault.SOAPFaultBuilder.disableCaptureStackTrace system property to false">
<ns2:stackTrace>
<ns2:frame class="ma.iam.sr.service.implementation.UsersServiceImpl" file="UsersServiceImpl.java" line="51" method="getUserByUserName" />
<ns2:frame class="sun.reflect.NativeMethodAccessorImpl" file="NativeMethodAccessorImpl.java" line="native" method="invoke0" />
<ns2:frame class="sun.reflect.NativeMethodAccessorImpl" file="NativeMethodAccessorImpl.java" line="39" method="invoke" />
<ns2:frame class="sun.reflect.DelegatingMethodAccessorImpl" file="DelegatingMethodAccessorImpl.java" line="25" method="invoke" />
<ns2:frame class="java.lang.reflect.Method" file="Method.java" line="597" method="invoke" />
<ns2:frame class="weblogic.wsee.jaxws.WLSInstanceResolver$WLSInvoker" file="WLSInstanceResolver.java" line="89" method="invoke" />
<ns2:frame class="weblogic.wsee.jaxws.WLSInstanceResolver$WLSInvoker" file="WLSInstanceResolver.java" line="71" method="invoke" />
<ns2:frame class="com.sun.xml.ws.server.InvokerTube$2" file="InvokerTube.java" line="146" method="invoke" />
<ns2:frame class="com.sun.xml.ws.server.sei.EndpointMethodHandler" file="EndpointMethodHandler.java" line="257" method="invoke" />
<ns2:frame class="com.sun.xml.ws.server.sei.SEIInvokerTube" file="SEIInvokerTube.java" line="93" method="processRequest" />
<ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="598" method="__doRun" />
<ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="557" method="_doRun" />
<ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="542" method="doRun" />
<ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="439" method="runSync" />
<ns2:frame class="com.sun.xml.ws.server.WSEndpointImpl$2" file="WSEndpointImpl.java" line="243" method="process" />
<ns2:frame class="com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit" file="HttpAdapter.java" line="444" method="handle" />
<ns2:frame class="com.sun.xml.ws.transport.http.HttpAdapter" file="HttpAdapter.java" line="244" method="handle" />
<ns2:frame class="com.sun.xml.ws.transport.http.servlet.ServletAdapter" file="ServletAdapter.java" line="135" method="handle" />
<ns2:frame class="weblogic.wsee.jaxws.HttpServletAdapter$AuthorizedInvoke" file="HttpServletAdapter.java" line="273" method="run" />
<ns2:frame class="weblogic.wsee.jaxws.HttpServletAdapter" file="HttpServletAdapter.java" line="185" method="post" />
<ns2:frame class="weblogic.wsee.jaxws.JAXWSServlet" file="JAXWSServlet.java" line="181" method="doPost" />
<ns2:frame class="javax.servlet.http.HttpServlet" file="HttpServlet.java" line="727" method="service" />
<ns2:frame class="weblogic.wsee.jaxws.JAXWSServlet" file="JAXWSServlet.java" line="64" method="service" />
<ns2:frame class="javax.servlet.http.HttpServlet" file="HttpServlet.java" line="821" method="service" />
<ns2:frame class="weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction" file="StubSecurityHelper.java" line="227" method="run" />
<ns2:frame class="weblogic.servlet.internal.ServletStubImpl" file="ServletStubImpl.java" line="292" method="execute" />
<ns2:frame class="weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction" file="WebAppServletContext.java" line="3498" method="run" />
<ns2:frame class="weblogic.security.acl.internal.AuthenticatedSubject" file="AuthenticatedSubject.java" line="321" method="doAs" />
<ns2:frame class="weblogic.security.service.SecurityManager" line="unknown" method="runAs" />
<ns2:frame class="weblogic.servlet.internal.WebAppServletContext" file="WebAppServletContext.java" line="2180" method="securedExecute" />
<ns2:frame class="weblogic.servlet.internal.WebAppServletContext" file="WebAppServletContext.java" line="2086" method="execute" />
<ns2:frame class="weblogic.servlet.internal.ServletRequestImpl" file="ServletRequestImpl.java" line="1406" method="run" />
<ns2:frame class="weblogic.work.ExecuteThread" file="ExecuteThread.java" line="201" method="execute" />
<ns2:frame class="weblogic.work.ExecuteThread" file="ExecuteThread.java" line="173" method="run" />
</ns2:stackTrace>
</ns2:exception>
</detail>
</S:Fault>
</S:Body>
</S:Envelope>

Quelqu'un a-t-il déjà rencontré le même problème
Merci d'avance pour toute intervention

Cordialement,