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Posted to java-dev@axis.apache.org by bu...@apache.org on 2002/08/14 17:47:34 UTC
DO NOT REPLY [Bug 11695] New: -
java message provider return serialization error
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=11695
java message provider return serialization error
Summary: java message provider return serialization error
Product: Axis
Version: beta-3
Platform: All
OS/Version: All
Status: NEW
Severity: Normal
Priority: Other
Component: Serialization/Deserialization
AssignedTo: axis-dev@xml.apache.org
ReportedBy: mark.sullivan@nav-international.com
using the following code with the message provider causes a
NullPointerException:
public Element[] SubmitInvoice(Vector elems) {
Element[] response = new Element[2];
try {
response[0] = new
SOAPBodyElement(XMLUtils.StringToElement("","Status",
"ACCEPTED!")).getAsDOM();
} catch (Exception e){
log.error(e.getMessage());
// throw AxisFault.makeFault(e);
}
return response;
}
notice that response is being declared as a vector of size two, but i'm only
using the first position. This causes the following exception:
<?xml version="1.0" encoding="UTF-8" ?>
- <SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
- <SOAP-ENV:Body>
- <SOAP-ENV:Fault>
<faultcode
xmlns:ns1="http://xml.apache.org/axis/">ns1:Server.userException</faultcode>
<faultstring>java.lang.NullPointerException</faultstring>
- <detail>
<ns2:stackTrace
xmlns:ns2="http://xml.apache.org/axis/">java.lang.NullPointerException at
org.apache.axis.message.MessageElement.<init>(MessageElement.java(Compiled
Code)) at
org.apache.axis.message.SOAPBodyElement.<init>(SOAPBodyElement.java(Compiled
Code)) at
org.apache.axis.providers.java.MsgProvider.processMessage(MsgProvider.java(C
ompiled Code)) at
org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:262) at
org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:
71) at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java(Compiled
Code)) at org.apache.axis.SimpleChain.invoke(SimpleChain.java:121) at
org.apache.axis.server.AxisServer.invoke(AxisServer.java:288) at
org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:576) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247) at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193) at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:243) at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66) at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:190) at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66) at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
) at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66) at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:170) at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64) at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
) at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64) at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468) at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64) at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174) at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66) at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java(
Compiled Code)) at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java(Comp
iled Code)) at java.lang.Thread.run(Thread.java:498)</ns2:stackTrace>
</detail>
</SOAP-ENV:Fault>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
which is pretty cryptic to debug considering there is no mention of the
actual service class in which that method is called. If you declare the
vector as only having one element, then there is no error. I realize that
this isn't necessarily a bug, but it maybe should check before it creates
the new SOAPBodyElement.
Here's a code snippet from
org.apache.axis.providers.java.MsgProvider.processMessage:
// We know we have one param. OK, is it a Vector?
if (params[0] == Vector.class) {
// Yes, invoke away!
argObjects[0] = bodies ;
Element[] result = (Element[]) method.invoke( obj,
argObjects );
if ( result != null ) {
for ( int i = 0 ; i < result.length ; i++ )
resEnv.addBodyElement( new
SOAPBodyElement(result[i]));
}
return ;
which should probably be changed to
if ( result != null ) {
for ( int i = 0 ; i < result.length ; i++ ){
** if(result[i] != null) **
resEnv.addBodyElement( new
SOAPBodyElement(result[i]));
}
}
return ;
or something along those lines.