JNI with AXIS - InvocationTargetException

[Sai pradeep]

Hi All!
I came to know from the mailing list that many people used Jni
with Axis. My task was to develop a web service which can invoke a JNI.
Whenever I try to invoke jni from my service I get an Exception
"InvocationTargetException". When i try to run this jni application
without deploying it on the Axis, everything seems to work fine. I would
be grateful to you, if anyone of you could be able to get me out of this
Exception.

Cheers
Sai.

[Lasse Koskela]

It would be helpful if you would provide more details than just the exception class... Maybe a bit of code around the exception-throwing line?

[Sai pradeep]

This is the Exception i get whenever i try to invoke my JNI method from AXIS Service.

java.lang.reflect.InvocationTargetException
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.lang.reflect.InvocationTargetException
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:AxisFault faultCode: \
{http://schemas.xmlsoap.org/soap/envelope/}
Server.userException
faultSubcode:
faultString: java.lang.reflect.InvocationTargetException
faultActor:
faultNode:
faultDetail:
java.lang.reflect.InvocationTargetException at \
org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:260) &# \
x9;at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:169)&# \
xa; at org.apache.axis.encoding.DeserializationContextImpl.endElement(Deserializat \
ionContextImpl.java:1083) at \
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) at \
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown \
Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentCont \
entDispatcher.dispatch(Unknown Source) at \
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown \
Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown \
Source) at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown \
Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown \
Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown \
Source) at javax.xml.parsers.SAXParser.parse(Unknown Source) at \
org.apache.axis.encoding.DeserializationContextImpl.parse(DeserializationContextImpl.j \
ava:252) at \
org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:553) at \
org.apache.axis.Message.getSOAPEnvelope(Message.java:378) at \
org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:675) \
;at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128) at \
org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71) &# \
x9;at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150) at \
org.apache.axis.SimpleChain.invoke(SimpleChain.java:120) at \
org.apache.axis.client.AxisClient.invoke(AxisClient.java:180) at \
org.apache.axis.client.Call.invokeEngine(Call.java:2564) at \
org.apache.axis.client.Call.invoke(Call.java:2553) at \
org.apache.axis.client.Call.invoke(Call.java:2248) at \
org.apache.axis.client.Call.invoke(Call.java:2171) at \
org.apache.axis.client.Call.invoke(Call.java:1691) at \
IncidentClient.main(IncidentClient.java:22)
java.lang.reflect.InvocationTargetException
at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java: \
260)
at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:1 \
69)
at org.apache.axis.encoding.DeserializationContextImpl.endElement(Deserializat \
ionContextImpl.java:1083)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown \
Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispat \
cher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown \
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.apache.axis.encoding.DeserializationContextImpl.parse(DeserializationCo \
ntextImpl.java:252) at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:553)
at org.apache.axis.Message.getSOAPEnvelope(Message.java:378)
at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:67 \
5)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java \
:71) at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)
at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
at org.apache.axis.client.Call.invoke(Call.java:2553)
at org.apache.axis.client.Call.invoke(Call.java:2248)
at org.apache.axis.client.Call.invoke(Call.java:2171)
at org.apache.axis.client.Call.invoke(Call.java:1691)
at IncidentClient.main(IncidentClient.java:22)

[Lasse Koskela]

The stack trace would indicate that your web service call never reaches your service class -- maybe you should check whether that's the case by, for example, the good old System.out.println()?

[JeanLouis Marechaux]

Just like Lasse, I think the faultString: java.lang.reflect.InvocationTargetException means the Axis client is unable to reach the Webservice you have specified.
Double check the service name exists and is properly deployed onto you server.