It seems attachments are disabled.
Here are the stacktraces:

Jan 29, 2010 1:13:20 AM com.sun.xml.ws.transport.http.servlet.WSServletDelegate 
doGet
SEVERE: caught throwable
java.lang.NullPointerException
        at 
org.apache.tomcat.util.http.MimeHeaders.setValue(MimeHeaders.java:269)
        at 
org.apache.coyote.http11.Http11Processor.prepareResponse(Http11Processor.java:1521)
        at 
org.apache.coyote.http11.Http11Processor.action(Http11Processor.java:934)
        at org.apache.coyote.Response.action(Response.java:183)
        at org.apache.coyote.Response.sendHeaders(Response.java:379)
        at 
org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:305)
        at 
org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:288)
        at 
org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:98)
        at 
com.sun.xml.stream.writers.UTF8OutputStreamWriter.flush(UTF8OutputStreamWriter.java:162)
        at 
com.sun.xml.stream.writers.XMLStreamWriterImpl.flush(XMLStreamWriterImpl.java:401)
        at 
com.sun.xml.stream.writers.XMLStreamWriterImpl.get(XMLStreamWriterImpl.java:2117)
        at 
com.sun.xml.ws.streaming.XMLStreamWriterUtil.getOutputStream(XMLStreamWriterUtil.java:69)
        at 
com.sun.xml.ws.message.jaxb.JAXBMessage.writePayloadTo(JAXBMessage.java:313)
        at 
com.sun.xml.ws.message.AbstractMessageImpl.writeTo(AbstractMessageImpl.java:142)
        at 
com.sun.xml.ws.encoding.StreamSOAPCodec.encode(StreamSOAPCodec.java:108)
        at 
com.sun.xml.ws.encoding.SOAPBindingCodec.encode(SOAPBindingCodec.java:258)
        at 
com.sun.xml.ws.transport.http.HttpAdapter.encodePacket(HttpAdapter.java:320)
        at 
com.sun.xml.ws.transport.http.HttpAdapter.access$100(HttpAdapter.java:93)
        at 
com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:454)
        at 
com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244)
        at 
com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:135)
        at 
com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:129)
        at 
com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:160)
        at 
com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:75)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
com.dnaO2.openspace.client.filter.MetadataRequestSynchFilter.doFilter(MetadataRequestSynchFilter.java:54)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:354)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:595)

Jan 29, 2010 1:13:20 AM com.sun.xml.ws.transport.http.servlet.WSServletDelegate 
doGet
SEVERE: caught throwable
java.lang.NullPointerException
        at 
org.apache.tomcat.util.http.MimeHeaders.setValue(MimeHeaders.java:267)
        at 
org.apache.coyote.http11.Http11Processor.prepareResponse(Http11Processor.java:1521)
        at 
org.apache.coyote.http11.Http11Processor.action(Http11Processor.java:934)
        at org.apache.coyote.Response.action(Response.java:183)
        at org.apache.coyote.Response.sendHeaders(Response.java:379)
        at 
org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:305)
        at 
org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:288)
        at 
org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:98)
        at 
com.sun.xml.stream.writers.UTF8OutputStreamWriter.flush(UTF8OutputStreamWriter.java:162)
        at 
com.sun.xml.stream.writers.XMLStreamWriterImpl.flush(XMLStreamWriterImpl.java:401)
        at 
com.sun.xml.stream.writers.XMLStreamWriterImpl.get(XMLStreamWriterImpl.java:2117)
        at 
com.sun.xml.ws.streaming.XMLStreamWriterUtil.getOutputStream(XMLStreamWriterUtil.java:69)
        at 
com.sun.xml.ws.message.jaxb.JAXBMessage.writePayloadTo(JAXBMessage.java:313)
        at 
com.sun.xml.ws.message.AbstractMessageImpl.writeTo(AbstractMessageImpl.java:142)
        at 
com.sun.xml.ws.encoding.StreamSOAPCodec.encode(StreamSOAPCodec.java:108)
        at 
com.sun.xml.ws.encoding.SOAPBindingCodec.encode(SOAPBindingCodec.java:258)
        at 
com.sun.xml.ws.transport.http.HttpAdapter.encodePacket(HttpAdapter.java:320)
        at 
com.sun.xml.ws.transport.http.HttpAdapter.access$100(HttpAdapter.java:93)
        at 
com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:454)
        at 
com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244)
        at 
com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:135)
        at 
com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:129)
        at 
com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:160)
        at 
com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:75)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
com.dnaO2.openspace.client.filter.MetadataRequestSynchFilter.doFilter(MetadataRequestSynchFilter.java:54)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:354)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:595)

Jan 29, 2010 1:13:20 AM 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler process
SEVERE: Error reading request, ignored
java.lang.NullPointerException
        at org.apache.tomcat.util.http.MimeHeaders.clear(MimeHeaders.java:130)
        at org.apache.coyote.Response.recycle(Response.java:579)
        at 
org.apache.coyote.http11.InternalOutputBuffer.nextRequest(InternalOutputBuffer.java:349)
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:901)
        at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:354)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:595)

Bertalan Kis 

-----Original Message-----
From: Bertalan Kis 
Sent: 02 February 2010 12:25
To: users@tomcat.apache.org
Subject: NullPointerException in MimeHeaders

Hi,

At my company we can see NullPointerExceptions in the catalina.out files (see 
the attachments). We use Tomcat 6.0.14 on our 4 servers to handle web service 
calls from another tier of the application. The errors occur when the soap call 
was processed and ready to send the prepared response back to the clients. The 
errors force the web services client framework to resend the same soap request 
to the Tomcats when they are processed again. Some of our web services treat 
this as a business logic failure.

We can't reproduce the issue on our test and development environments, it is 
appearing only on the production environment. The errors are seen usually 1-2 
servers. When we restart the tomcats the errors can disappear from a server, 
but it may appear on another. The first errors were appeared after a restart of 
the platform, there were no new application deployed or configuration change 
made. Before the errors the same version of the application was running more 
than one and half month without problem. Different versions of the application 
was running fine for more than a half year.

Tomcat developers gave me a hint to try the 
org.apache.catalina.connector.RECYCLE_FACADES=true system property to avoid 
reuse of request and response objects, but it was not working.

We have no idea what can cause this. Can the clients cause the error?
I hope someone can help me find a solution for this issue.

Bertalan Kis




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