Tracked the problem down to the class org.apache.axis.Message
public void writeTo(java.io.OutputStream os) throws SOAPException,
IOException {
//Do it the old fashion way.
if (getSendType() == Attachments.SEND_TYPE_NONE || mAttachments ==
null || 0 == mAttachments.getAttachmentCount()) {
try {
String charEncoding = XMLUtils.getEncoding(this,
msgContext);;
mSOAPPart.setEncoding(charEncoding);
mSOAPPart.writeTo(os);
} catch (java.io.IOException e) {
log.error(Messages.getMessage("javaIOException00"), e);
}
} else {
try {
mAttachments.writeContentToStream(os);
} catch (java.lang.Exception e) {
????---> log.error(Messages.getMessage("exception00"), e);
}
}
}
I always don't know why the method call sometimes work and sometimes not.
I don't know why axis wants to write to a attachement in case of a simple
method (boolean existsStorageObject(String). (more about my mapping in my
first mail.)
I also don't know how to interpret the catch clouse without a throw.
Did my call work or not? Can I ignore the Execption????
When I can't ignore it why is the Exception not send up the call stack??
Really confused about this.
Greetings Martin
-----Ursprüngliche Nachricht-----
Von: Martin Grüneberg [mailto:[EMAIL PROTECTED]
Gesendet: Montag, 19. September 2005 10:22
An: [email protected]
Betreff: [axis 1.2.1] Trouble with randomly occuring Errors
Hi,
I'm stuck here with a problem. I use axis 1.2.1 on a tomcat5.5 server (jdk
1.5) and on the client side (jdk 1.4.2). The client and the server transmit
large objects over some methods (up to 30MB) which I serialize and transport
attachements (DataHandler). Most of the method calls work quite good but I
get randomly error messages on calling a simple method which takes a string
and results in a boolean. The method works or works not which I can not
understand.
Here is a part of the stacktrace on the client side.
On the server side everything seems to be ok (nothing in the logs).
19-09-2005 09:33:51,156 ERROR (Message.writeTo() 536) - Exception:
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.lang.NullPointerException
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:java.lang.NullPointerException
at
org.apache.axis.attachments.AttachmentsImpl.writeContentToStream(Attachments
Impl.java:473)
at org.apache.axis.Message.writeTo(Message.java:534)
at
org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:511)
at
org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
at
org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:
32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
at org.apache.axis.client.Call.invokeEngine(Call.java:2765)
at org.apache.axis.client.Call.invoke(Call.java:2748)
at org.apache.axis.client.Call.invoke(Call.java:2424)
at org.apache.axis.client.Call.invoke(Call.java:2347)
at org.apache.axis.client.Call.invoke(Call.java:1804)
at
activegroup.dba.webservice.DBA_WS_BindingStub.existsStorageObject(DBA_WS_Bin
dingStub.java:682)
at
activegroup.dba.webservice.WebserviceClientAccessWrapper.existsStorageObject
(WebserviceClientAccessWrapper.java:108)
....
Here the defining parts of the wedl which I usewd to generate the
stubs/skelletons (wsdl2java
<wsdl:definitions xmlns:apachesoap="http://xml.apache.org/xml-soap";
xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/";
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/";
xmlns:soapencoding="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:tns="urn:webservice" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/";
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; name="dba"
targetNamespace="urn:webservice">
<wsdl:types>
<xsd:schema
targetNamespace="http://xml.apache.org/xml-soap";>
<xsd:import
namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
.... More ...
</xsd:schema>
</wsdl:types>
<!-- Messages -->
<wsdl:message name="emptyMsg"/>
<wsdl:message name="booleanMsg">
<wsdl:part name="boolean" type="xsd:boolean"/>
</wsdl:message>
<wsdl:message name="stringMsg">
<wsdl:part name="string" type="xsd:string"/>
</wsdl:message>
.... More ...
<wsdl:portType name="dbaPT">
<wsdl:operation name="existsStorageObject">
<wsdl:input message="tns:stringMsg"
name="existsStorageObjectInMsg"/>
<wsdl:output message="tns:booleanMsg"
name="existsStorageObjectResponse"/>
</wsdl:operation>
.... More ...
</wsdl:portType>
<wsdl:binding name="DBA_WS_Binding" type="tns:dbaPT">
<soap:binding style="rpc"
transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="existsStorageObject">
<wsdl:input name="existsStorageObjectInMsg">
<soap:body namespace="urn:webservice"
use="literal"/>
</wsdl:input>
<wsdl:output name="existsStorageObjectResponse">
<soap:body namespace="urn:webservice"
use="literal"/>
</wsdl:output>
</wsdl:operation>
.... More ...
</wsdl:binding>
<wsdl:service name="DBAService">
<wsdl:port binding="tns:DBA_WS_Binding" name="DBAService">
<soap:address
location="http://localhost/dba/services/DBAService"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
I hope someone can give me a hint why this non deterministic behaviour
happens!
Kind regards
Martin Grüneberg
____________
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____________
Virus checked by G DATA AntiVirusKit
Version: AVK 16.534 from 19.09.2005
Virus news: www.antiviruslab.com
