CLONE -Exception in XML serialization causes malformed/corrupted response
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Key: AXIS2-4124
URL: https://issues.apache.org/jira/browse/AXIS2-4124
Project: Axis 2.0 (Axis2)
Issue Type: Bug
Components: kernel
Affects Versions: 1.2, 1.1.1
Environment: Windows Vista, Tomcat 5.5.20, JDK 1.5.0_10
Reporter: Peter Storch
Assignee: Glen Daniels
Priority: Blocker
Fix For: 1.3
Hi there,
We have a simple SOAP layer that returns data pulled from the DB using Axis.
Nothing special here.
In our testing, one of the objects happened to have an invalid XML 1.0
character (0x10) in its description field. As it's not an application Fault
(our application currently doesn't check for it. It no doubt should,
obviously), Axis2 wasn't aware of it until it's notified by the Woodstox
BufferingXMLWriter of an invalid character (through IOException). Axis2 caught
the exception (at , and raised an AxisFault. It then proceeded to send the
Fault as its own message (envelope) back to the client. All is well, except
that Axis2 was in the middle of writing out response provided by the business
application. That led to a corrupted byte stream that contained a partial, not
well-formed envelope, followed immediately by the Fault envelope. Something to
the effect of a purging (not flushing) to clear the output stream before
sending out the Fault message would seem desirable.
It may not be so bad if the client receives such a corrupted stream, and throws
some sort of error. The Fault message becomes meaningless, obviously, which
isn't great either. But, what's worse is that the Axis2 client
(ServiceClient.sendReceive) actually was able to parse the corrupted byte
stream, and somehow considered the Fault message be the content of the last XML
element that contained the invalid character. Now, that's really bad.
This may have been logged in JIRA, but I couldn't seem to find it.
-Alan
Stack track of the exception caught by Axis2 during serialization:
com.ctc.wstx.exc.WstxIOException: Invalid white space character (0x10) in text
to output
at
com.ctc.wstx.sw.BaseStreamWriter.writeCharacters(BaseStreamWriter.java:520)
at
org.apache.axiom.om.impl.llom.OMTextImpl.writeOutput(OMTextImpl.java:209)
at
org.apache.axiom.om.impl.llom.OMTextImpl.internalSerializeLocal(OMTextImpl.java:368)
at
org.apache.axiom.om.impl.llom.OMTextImpl.internalSerialize(OMTextImpl.java:197)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:766)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:750)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:766)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:750)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:766)
at
org.apache.axiom.om.impl.llom.OMSourcedElementImpl.internalSerialize(OMSourcedElementImpl.java:564)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:750)
at
org.apache.axiom.om.impl.llom.OMSourcedElementImpl.internalSerialize(OMSourcedElementImpl.java:551)
at
org.apache.axiom.om.impl.llom.OMSourcedElementImpl.serialize(OMSourcedElementImpl.java:592)
at
org.apache.axiom.om.impl.llom.OMElementImpl.toString(OMElementImpl.java:907)
... 30 more
Caused by: java.io.IOException: Invalid white space character (0x10) in text to
output
at com.ctc.wstx.sw.XmlWriter.throwInvalidChar(XmlWriter.java:545)
at
com.ctc.wstx.sw.BufferingXmlWriter.writeCharacters(BufferingXmlWriter.java:453)
at
com.ctc.wstx.sw.BaseStreamWriter.writeCharacters(BaseStreamWriter.java:518)
... 43 more
This is the call stack from Eclipse debugger:
CoyoteOutputStream.write(byte[], int, int) line: 88
UTF8Writer.flush() line: 96
BufferingXmlWriter.flush() line: 214
SimpleNsStreamWriter(BaseStreamWriter).flush() line: 311
MTOMXMLStreamWriter.flush() line: 115
SOAPEnvelopeImpl(OMNodeImpl).serializeAndConsume(OutputStream, OMOutputFormat)
line: 419
SOAPMessageFormatter.writeTo(MessageContext, OMOutputFormat, OutputStream,
boolean) line: 55
CommonsHTTPTransportSender.sendUsingOutputStream(MessageContext,
OMOutputFormat) line: 275
CommonsHTTPTransportSender.invoke(MessageContext) line: 203
AxisEngine.sendFault(MessageContext) line: 533
AxisServlet.handleFault(MessageContext, OutputStream, AxisFault) line: 393
AxisServlet.processAxisFault(MessageContext, HttpServletResponse, OutputStream,
AxisFault) line: 355
AxisServlet.doPost(HttpServletRequest, HttpServletResponse) line: 152
AxisServlet(HttpServlet).service(HttpServletRequest, HttpServletResponse) line:
709
AxisServlet(HttpServlet).service(ServletRequest, ServletResponse) line: 802
ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
252
ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
HibernateFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 95
ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
StandardWrapperValve.invoke(Request, Response) line: 213
StandardContextValve.invoke(Request, Response) line: 178
StandardHostValve.invoke(Request, Response) line: 126
ErrorReportValve.invoke(Request, Response) line: 105
FastCommonAccessLogValve.invoke(Request, Response) line: 495
StandardEngineValve.invoke(Request, Response) line: 107
CoyoteAdapter.service(Request, Response) line: 148
Http11Processor.process(InputStream, OutputStream) line: 869
Http11Protocol$JmxHttp11ConnectionHandler(Http11BaseProtocol$Http11ConnectionHandler).processConnection(TcpConnection,
Object[]) line: 664
PoolTcpEndpoint.processSocket(Socket, TcpConnection, Object[]) line: 527
LeaderFollowerWorkerThread.runIt(Object[]) line: 80
ThreadPool$ControlRunnable.run() line: 684
ThreadWithAttributes(Thread).run() line: 595
What got sent over the wire back to the client:
<soapenv:Body
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";><ns2:getSKUListResponse
xmlns:ns2="http://mds.adserver.massive.com/xsd";><ns2:record><s41:createdOn
xmlns:s41="http://types.mds.adserver.massive.com/";>2005-09-20T19:56:21.000Z</s41:createdOn><s42:description
xmlns:s42="http://types.mds.adserver.massive.com/";>x</s42:description><s43:id
xmlns:s43="http://types.mds.adserver.massive.com/";>51</s43:id><s44:modifiedOn
xmlns:s44="http://types.mds.adserver.massive.com/";>2005-09-23T17:51:37.000Z</s44:modifiedOn><s45:name
xmlns:s45="http://types.mds.adserver.massive.com/";>EveryoneSKU</s45:name><s46:enabled
xmlns:s46="http://types.mds.adserver.massive.com/";>true</s46:enabled></ns2:record><ns2:record><s47:createdOn
xmlns:s47="http://types.mds.adserver.massive.com/";>2005-09-20T19:55:23.000Z</s47:createdOn><s48:description
xmlns:s48="http://types.mds.adserver.massive.com/";><xml version='1.0'
encoding='UTF-8'?><soapenv:Envelope><soapenv:Body><soapenv:Fault><faultcode>soapenv:Client</faultcode><faultstring>Invalid
white space character (0x10) in text to output</faultstring><detail
/></soapenv:Fault></soapenv:Body></soapenv:Envelope>
What the client (Axis2 ServiceClient) thought it was getting:
<soapenv:Body
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";><ns2:getSKUListResponse
xmlns:ns2="http://mds.adserver.massive.com/xsd";><ns2:record><s41:createdOn
xmlns:s41="http://types.mds.adserver.massive.com/";>2005-09-20T19:56:21.000Z</s41:createdOn><s42:description
xmlns:s42="http://types.mds.adserver.massive.com/";>x</s42:description><s43:id
xmlns:s43="http://types.mds.adserver.massive.com/";>51</s43:id><s44:modifiedOn
xmlns:s44="http://types.mds.adserver.massive.com/";>2005-09-23T17:51:37.000Z</s44:modifiedOn><s45:name
xmlns:s45="http://types.mds.adserver.massive.com/";>EveryoneSKU</s45:name><s46:enabled
xmlns:s46="http://types.mds.adserver.massive.com/";>true</s46:enabled></ns2:record><ns2:record><s47:createdOn
xmlns:s47="http://types.mds.adserver.massive.com/";>2005-09-20T19:55:23.000Z</s47:createdOn><s48:description
xmlns:s48="http://types.mds.adserver.massive.com/";> version='1.0'
encoding='UTF-8'?><soapenv:Envelope><soapenv:Body><soapenv:Fault><faultcode>soapenv:Client</faultcode><faultstring>Invalid
white space character (0x10) in text to output</faultstring><detail
/></soapenv:Fault></soapenv:Body></soapenv:Envelope></s48:description></ns2:record></ns2:getSKUListResponse></soapenv:Body>
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