Trying to find out why one of those two SOAP requests does not work (java.lang.IllegalArgumentException)

Question

I have a running JAX-WS webservice which already has some working endpoints. Now I'm having the following issue:

I'm having two different SOAP Requests here and I don't understand why the first one works but the second one does not.

The only obvious difference in the requests is that the first one specifies a namespace in the <Envelope> tag while the second one specifies it when calling the method <getMoldDataHistory>.

SOAP Request 1 - Not Working (Namespace is specified at the method call)

<s:Envelope
    xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"
>
    <s:Body
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    >
        <getMoldDataHistory
            xmlns="http://history.production.soap.webservices.product.company.at/">
            <machineId>92623-15853588</machineId>
            <start>0</start>
            <end>0</end>
        </getMoldDataHistory>
    </s:Body>
</s:Envelope>

SOAP Request 2 - Working (Namespace is specified in the <Envelope> tag)

<soapenv:Envelope 
    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
    xmlns:his="http://history.production.soap.webservices.product.company.at/">

   <soapenv:Header/>

   <soapenv:Body>
      <his:getMoldDataHistory>
         <machineId>92623-15853588</machineId>
         <start>0</start>
         <end>0</end>
      </his:getMoldDataHistory>
   </soapenv:Body>
</soapenv:Envelope>

The SOAP error message I'm getting when making the first (Not working) request.

<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.IllegalArgumentException</faultstring>
      </S:Fault>
   </S:Body>
</S:Envelope>

The stacktrace of the exception thrown from the Server when receiving the first SOAP request.

java.lang.IllegalArgumentException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at sun.reflect.misc.Trampoline.invoke(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at sun.reflect.misc.MethodUtil.invoke(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.sun.xml.internal.ws.api.server.MethodUtil.invoke(Unknown Source)
    at com.sun.xml.internal.ws.api.server.InstanceResolver$1.invoke(Unknown Source)
    at com.sun.xml.internal.ws.server.InvokerTube$2.invoke(Unknown Source)
    at com.sun.xml.internal.ws.server.sei.EndpointMethodHandler.invoke(Unknown Source)
    at com.sun.xml.internal.ws.server.sei.SEIInvokerTube.processRequest(Unknown Source)
    at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Unknown Source)
    at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Unknown Source)
    at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Unknown Source)
    at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Unknown Source)
    at com.sun.xml.internal.ws.server.WSEndpointImpl$2.process(Unknown Source)
    at com.sun.xml.internal.ws.transport.http.HttpAdapter$HttpToolkit.handle(Unknown Source)
    at com.sun.xml.internal.ws.transport.http.HttpAdapter.handle(Unknown Source)
    at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handleExchange(Unknown Source)
    at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handle(Unknown Source)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
    at sun.net.httpserver.AuthFilter.doFilter(Unknown Source)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
    at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(Unknown Source)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
    at sun.net.httpserver.ServerImpl$Exchange.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

So I'm basically trying to figure out why the first request is not working despite it being a valid SOAP request. Is there anything I need to configure at my server to allow such requests?

EDIT:

After doing some more testing I found out that the position of the namespace declaration does NOT matter IF the method I call has 0 parameters. As soon as parameter is required it stops working.

EDIT 2:

Now I stumpled upon this thread here . I have the same issue. My C# Client who makes the requests does not use the namespace int the method TAG. After I add it it works.

Still how can I tell JAX-WS to deal with this.

Does not work:

<getMoldDataHistory xmlns="http://history.production.soap.webservices.product.company.at/">

Works:

<his:getMoldDataHistory xmlns:his="http://history.production.soap.webservices.product.company.at/">

Seelenvirtuose · Answer 1 · 2017-07-27T11:12:04.617

When using a prefix bound to a namespace like in

<his:getMoldDataHistory xmlns:his="http://history.production.soap.webservices.product.company.at/">
    <machineId>92623-15853588</machineId>
    <start>0</start>
    <end>0</end>
</his:getMoldDataHistory>

then only the element getMoldDataHistory is put into the specified namespace. The reason is that the syntax xmlns:his="..." only declares the prefix. This then must used at all elements that you want to be in the specified namespace. In this code snippet, the only element is getMoldDataHistory.

Using the xmlns="..." syntax like in

<getMoldDataHistory xmlns="http://history.production.soap.webservices.product.company.at/">
    <machineId>92623-15853588</machineId>
    <start>0</start>
    <end>0</end>
</getMoldDataHistory>

not only declares the namespace, but also puts the associated element and all child elements into this namespace.

Conclusion: These two XML snippets are not semantically equivalent.

If there was such a thing as an "expanded element name" syntax, then these XML snippets would look like ...

First one:

<{http://history.production.soap.webservices.product.company.at/}getMoldDataHistory>
    <{}machineId>92623-15853588</{}machineId>
    <{}start>0</{}start>
    <{}end>0</{}end>
</{http://history.production.soap.webservices.product.company.at/}getMoldDataHistory>

Second one:

<{http://history.production.soap.webservices.product.company.at/}getMoldDataHistory>
    <{http://history.production.soap.webservices.product.company.at/}machineId>92623-15853588</{http://history.production.soap.webservices.product.company.at/}machineId>
    <{http://history.production.soap.webservices.product.company.at/}start>0</{http://history.production.soap.webservices.product.company.at/}start>
    <{http://history.production.soap.webservices.product.company.at/}end>0<{/http://history.production.soap.webservices.product.company.at/}end>
</{http://history.production.soap.webservices.product.company.at/}getMoldDataHistory>

Trying to find out why one of those two SOAP requests does not work (java.lang.IllegalArgumentException)

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