I got a similar issue some time ago, then I found out that cleanup
call on the stub closed the connection and is the cause of this error.
Don't call cleanup untill you read the XML completely.
On Dec 13, 2007, at 7:00 AM, Lositski Vadim <[EMAIL PROTECTED]
> wrote:
Hello,
I've done additional research on this topic, and it seems that the
problem is in the size of the response XML envelope.
When I am trying to print out the resulted OMElement:
result.serializeAndConsume(System.out);
Only first 4000 characters are printed and then following exception
is thrown: java.lang.RuntimeException: [was class
java.io.IOException] Attempted read on closed stream
Stange is that when the operation returns XML which length is less
than 4000 characters everything works fine.
Also when I use this operation in async mode, everything is also
fine, response size irrespectively.
Do you know about this limitation?
Thanks in advance,
Vadim
-----Original Message-----
From: Lositski Vadim
Sent: Wednesday, December 12, 2007 5:19 PM
To: axis-user@ws.apache.org
Subject: [Axis2] Unable to deserialize OMElement
Hi everybody,
I am sending a request to the service which combines its response
from various sources, then creates an OMElement and sends it back.
The databinding and deserialization is made with Castor and Stax
APIs basically as it is described in the "databinding" example from
Axis2 distribution.
When I am trying to create an object from an OMElement received from
the service
StAXSource staxSource = new StAXSource(result.getXMLStreamReader());
Unmarshaller unmarshaller = new Unmarshaller(TargetClass.class);
UnmarshalHandler unmarshalHandler = unmarshaller.createHandler();
try {
ContentHandler contentHandler = (ContentHandler)
Unmarshaller.getContentHandler(unmarshalHandler);
TransformerFactory.newInstance().newTransformer().transform
(staxSource, new SAXResult(contentHandler));
}
catch (Exception ex) {
ex.printStackTrace();
}
TargetClass response = (TargetClass) unmarshalHandler.getObject();
I receive a NullPointerException exception:
java.lang.NullPointerException
at javanet.staxutils.StAXSource$1.parse(StAXSource.java:196)
at javanet.staxutils.StAXSource$1.parse(StAXSource.java:181)
at org.apache.xalan.transformer.TransformerIdentityImpl.transform
(TransformerIdentityImpl.java:484)
at
com.profitsoftware.webservices.central.CentralWebServiceTester.main
(CentralWebServiceTester.java:85)
The object is serialized, but partially some data fields are null
I have also tried to just print out the OMElement, but received:
Exception in thread "main" java.lang.StackOverflowError
at org.apache.axiom.om.impl.llom.OMNodeImpl.setComplete
(OMNodeImpl.java:174)
at org.apache.axiom.om.impl.llom.OMNodeImpl.setComplete
(OMNodeImpl.java:174)
at org.apache.axiom.om.impl.llom.OMNodeImpl.setComplete
(OMNodeImpl.java:174)
When I use OMElement.toStringWithConsume() I have the following
exception:
java.lang.RuntimeException: [was class java.io.IOException]
Attempted read on closed stream.
at com.ctc.wstx.util.ExceptionUtil.throwRuntimeException
(ExceptionUtil.java:18)
at com.ctc.wstx.sr.StreamScanner.throwLazyError
(StreamScanner.java:706)
at com.ctc.wstx.sr.BasicStreamReader.safeFinishToken
(BasicStreamReader.java:3655)
at com.ctc.wstx.sr.BasicStreamReader.getText
(BasicStreamReader.java:809)
at org.apache.axiom.om.impl.llom.OMStAXWrapper.getText
(OMStAXWrapper.java:364)
at
org.
apache.axiom.om.impl.serialize.StreamingOMSerializer.serializeText
(StreamingOMSerializer.java:339)
at
org.
apache.axiom.om.impl.serialize.StreamingOMSerializer.serializeNode
(StreamingOMSerializer.java:79)
at
org.apache.axiom.om.impl.serialize.StreamingOMSerializer.serialize
(StreamingOMSerializer.java:57)
at
org.apache.axiom.om.impl.util.OMSerializerUtil.serializeByPullStream
(OMSerializerUtil.java:525)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize
(OMElementImpl.java:795)
at
org.
apache.axiom.om.impl.llom.OMElementImpl.internalSerializeAndConsume
(OMElementImpl.java:814)
at
org.apache.axiom.om.impl.llom.OMNodeImpl.serializeAndConsume
(OMNodeImpl.java:358)
at
org.apache.axiom.om.impl.llom.OMElementImpl.toStringWithConsume
(OMElementImpl.java:904)
at
com.profitsoftware.webservices.central.CentralWebServiceTester.main
(CentralWebServiceTester.java:79)
Caused by: java.io.IOException: Attempted read on closed stream.
at
org.apache.commons.httpclient.AutoCloseInputStream.isReadAllowed
(AutoCloseInputStream.java:165)
at org.apache.commons.httpclient.AutoCloseInputStream.read
(AutoCloseInputStream.java:106)
at java.io.FilterInputStream.read(FilterInputStream.java:111)
at java.io.PushbackInputStream.read(PushbackInputStream.java:
161)
at java.io.FilterInputStream.read(FilterInputStream.java:90)
at com.ctc.wstx.io.UTF8Reader.loadMore(UTF8Reader.java:362)
at com.ctc.wstx.io.UTF8Reader.read(UTF8Reader.java:110)
at com.ctc.wstx.io.MergedReader.read(MergedReader.java:101)
at com.ctc.wstx.io.ReaderSource.readInto(ReaderSource.java:84)
at com.ctc.wstx.io.BranchingReaderSource.readInto
(BranchingReaderSource.java:57)
at com.ctc.wstx.sr.StreamScanner.loadMore(StreamScanner.java:
967)
at com.ctc.wstx.sr.BasicStreamReader.readTextSecondary
(BasicStreamReader.java:4626)
at com.ctc.wstx.sr.BasicStreamReader.readCoalescedText
(BasicStreamReader.java:4124)
at com.ctc.wstx.sr.BasicStreamReader.finishToken
(BasicStreamReader.java:3699)
at com.ctc.wstx.sr.BasicStreamReader.safeFinishToken
(BasicStreamReader.java:3647)
What I have noticed is that when the size of response is 3980 bytes
everything is just fine, no exceptions, deserialization is also
correct. But when the response is 4606 bytes, it fails. Perhaps some
buffer or cache issue?
Another interesting thing is that when I copy the response (which
fails) from SOAP monitor to the file, and the create an OMElement
and print it out everything is also fine:
StAXOMBuilder sab = new StAXOMBuilder("c:\\test.xml");
OMElement result = sab.getDocument().getOMDocumentElement();
System.out.println(result);
Please give me a hint how to solve this problem. I am using latest
stable Axis2 version which is currently 1.3
Best regards,
Vadim
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