I have one simple operation in my web service. Wsdl file looks fine, I can verify it through web page.

Then I try to invoke this method using WSIF. And i get

16:33:02,953 ERROR [RPCInvocation] org.jboss.axis.AxisFault: No such operation 'simpleOperation'
org.jboss.axis.AxisFault: No such operation 'simpleOperation'
 at org.jboss.axis.message.RPCElement.deserialize(RPCElement.java:345)
 at org.jboss.axis.message.RPCElement.getParams(RPCElement.java:396)
 at org.jboss.axis.providers.java.RPCInvocation.prepareFromRequestEnvelope(RPCInvocation.java:235)
 at org.jboss.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:103)
 at org.jboss.axis.providers.java.JavaProvider.invoke(JavaProvider.java:358)
 at org.jboss.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:73)
 at org.jboss.axis.SimpleChain.doVisiting(SimpleChain.java:160)
 at org.jboss.axis.SimpleChain.invoke(SimpleChain.java:123)
 at org.jboss.axis.handlers.soap.SOAPService.invoke(SOAPService.java:560)
 at org.jboss.webservice.server.ServerEngine.invokeInternal(ServerEngine.java:200)
 at org.jboss.webservice.server.ServerEngine.invoke(ServerEngine.java:89)
 at org.jboss.axis.transport.http.AxisServlet.doPost(AxisServlet.java:911)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 at org.jboss.axis.transport.http.AxisServletBase.service(AxisServletBase.java:370)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 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.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
 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.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
 at java.lang.Thread.run(Thread.java:595)
16:33:03,031 ERROR [ServerEngine] Server error: AxisFault
 faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Client
 faultSubcode:
 faultString: No such operation 'simpleOperation'
 faultActor:
 faultNode:
 faultDetail:
 {http://xml.apache.org/axis/}stackTrace: org.jboss.axis.AxisFault: No such operation 'simpleOperation'
 at org.jboss.axis.message.RPCElement.deserialize(RPCElement.java:345)
 at org.jboss.axis.message.RPCElement.getParams(RPCElement.java:396)
 at org.jboss.axis.providers.java.RPCInvocation.prepareFromRequestEnvelope(RPCInvocation.java:235)
 at org.jboss.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:103)
 at org.jboss.axis.providers.java.JavaProvider.invoke(JavaProvider.java:358)
 at org.jboss.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:73)
 at org.jboss.axis.SimpleChain.doVisiting(SimpleChain.java:160)
 at org.jboss.axis.SimpleChain.invoke(SimpleChain.java:123)
 at org.jboss.axis.handlers.soap.SOAPService.invoke(SOAPService.java:560)
 at org.jboss.webservice.server.ServerEngine.invokeInternal(ServerEngine.java:200)
 at org.jboss.webservice.server.ServerEngine.invoke(ServerEngine.java:89)
 at org.jboss.axis.transport.http.AxisServlet.doPost(AxisServlet.java:911)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 at org.jboss.axis.transport.http.AxisServletBase.service(AxisServletBase.java:370)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 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.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
 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.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
 at java.lang.Thread.run(Thread.java:595)

 {http://xml.apache.org/axis/}isRuntimeException: true