1 Reply Latest reply on Oct 29, 2005 5:19 PM by sventura

    dynamic axis serializer generation fails on 4.0.2+EJB3RC2

    sventura
    sventura Oct 27, 2005 12:11 AM

      I am experimenting a very peculiar issue with axis webservices on jboss 4.0.2.

      This is my interface

      package test;

import java.rmi.Remote;
import java.rmi.RemoteException;

import java.util.*;

public interface Test
 extends Remote
{
 TestPojo[] test(TestPojo[] pojos)
 throws RemoteException;
}


      This is the implementation 
      package test;

import java.rmi.RemoteException;
import javax.xml.rpc.*;
import javax.xml.rpc.server.ServiceLifecycle;

import java.util.*;

public class TestImpl
 implements Test, ServiceLifecycle
{
 public TestPojo[] test(TestPojo[] pojos)
 {
 return pojos;
 }

 ////////////////////////////////////////////////////////////////////////////
 // AUTOGENERATED STUB
 ////////////////////////////////////////////////////////////////////////////
 public void init(Object arg0) throws ServiceException
 {
 }

 public void destroy()
 {
 }
}


      This is ant task used to generate wsdl 

      <axis-java2wsdl
 classname="test.Test"
 style="RPC"
 serviceportname="TestPort"
 namespace="http://test"
 location="http://localhost:8080/test/Test"
 output="${build.dir}/wsdl/TestService.wsdl">
 <classpath>
 <pathelement path="${build.dir}/classes"/>
 </classpath>
 </axis-java2wsdl>


      This is my jaxrpc-mapping.xml 

      <package-mapping>
 <package-type>test</package-type>
 <namespaceURI>http://test</namespaceURI>
 </package-mapping>


      web.xml and webservices.xml are not show but are ok because it deploys.

      I donot explicitly declare a serializar for TestPojo.

      I get this exception when method is invoked : 

      2005-10-26 22:09:41,632 ERROR [org.jboss.axis.providers.java.RPCInvocation] org.xml.sax.SAXException: No deserializer defined for array type {http://test}TestPojo
org.xml.sax.SAXException: No deserializer defined for array type {http://test}TestPojo
 at org.jboss.axis.encoding.ser.ArrayDeserializer.onStartElement(ArrayDeserializer.java:331)
 at org.jboss.axis.encoding.DeserializerImpl.startElement(DeserializerImpl.java:466)
 at org.jboss.axis.encoding.DeserializationContextImpl.startElement(DeserializationContextImpl.java:1182)
 at org.jboss.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:244)
 at org.jboss.axis.message.SOAPElementAxisImpl.publishToHandler(SOAPElementAxisImpl.java:1386)
 at org.jboss.axis.encoding.DeserializerImpl.startElement(DeserializerImpl.java:436)
 at org.jboss.axis.encoding.DeserializationContextImpl.startElement(DeserializationContextImpl.java:1182)
 at org.jboss.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:244)
 at org.jboss.axis.message.SOAPElementAxisImpl.publishToHandler(SOAPElementAxisImpl.java:1386)
 at org.jboss.axis.message.RPCElement.deserialize(RPCElement.java:262)
 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:905)
 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:153)
 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)
2005-10-26 22:09:41,654 ERROR [org.jboss.webservice.server.ServerEngine] Server error: AxisFault
 faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Client
 faultSubcode:
 faultString: No deserializer defined for array type {http://test}TestPojo
 faultActor:
 faultNode:
 faultDetail:
 {http://xml.apache.org/axis/}stackTrace: org.xml.sax.SAXException: No deserializer defined for array type {http://test}TestPojo
 at org.jboss.axis.encoding.ser.ArrayDeserializer.onStartElement(ArrayDeserializer.java:331)
 at org.jboss.axis.encoding.DeserializerImpl.startElement(DeserializerImpl.java:466)
 at org.jboss.axis.encoding.DeserializationContextImpl.startElement(DeserializationContextImpl.java:1182)
 at org.jboss.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:244)
 at org.jboss.axis.message.SOAPElementAxisImpl.publishToHandler(SOAPElementAxisImpl.java:1386)
 at org.jboss.axis.encoding.DeserializerImpl.startElement(DeserializerImpl.java:436)
 at org.jboss.axis.encoding.DeserializationContextImpl.startElement(DeserializationContextImpl.java:1182)
 at org.jboss.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:244)
 at org.jboss.axis.message.SOAPElementAxisImpl.publishToHandler(SOAPElementAxisImpl.java:1386)
 at org.jboss.axis.message.RPCElement.deserialize(RPCElement.java:262)
 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:905)
 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:153)
 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

2005-10-26 22:09:41,656 INFO [org.jboss.axis.transport.http.AxisServlet] org.xml.sax.SAXException: No deserializer defined for array type {http://test}TestPojo



      My surprise it that if test method is changed to (array operator removed from either parameter or return type, it does not matter): 

      TestPojo test(TestPojo[] pojos)
 throws RemoteException;


      then it works!!!

      My conclusion is that TestPojo must be explicitly referenced on the given interface so that axis auto generates a serializer/deserializer for it. Arrays does not seem to count as explicit references.

      Is this a bug?

      Any comments will be apreciated since I donot want to put explicit references of all involved pojos (with dummy methods) just to workaround this.

      Regards






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        • 1. Re: dynamic axis serializer generation fails on 4.0.2+EJB3RC
          sventura
          sventura Oct 29, 2005 5:19 PM (in response to sventura)

          By the way, axis fails to properly serialize agregated arrays on server side if POJO is declared with field access level.

          For example, it serializes an String[] as if it were a single String object but multiple times (multiplicitly is coincident)

          If POJO is declared with method level access (private fields), then it works as expected.


          This works

          public class POJO
{
 String[] strings;
 public String[] getStrings()
 {
 return strings;
 public void setStrings(String[] strings)
 {
 this.strings = strings;
 }
}


          This does NOT work           

          public class POJO
{
 public String[] strings;
}


          @REMEBERNOTE
          Update this post with the tcpmon captured packages for both cases.

          Looks like a punishment for lazy people like my self :-).

          It is also interesting to note that auto generated client code(axis-wsdl2java) does not explicitly fails on this behavior, it just deserializes wrongly.

          This problem was first dicovered when testing with a .net client.



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