we use standard ones (no customization) org.apache.commons.httpclient.methods.PostMethod org.apache.commons.httpclient.methods.InputStreamRequestEntity (we buffer the serialized java object and pass ByteArrayInputStream to InputStreamRequestEntity).
As recommended we re-use HttpClient object and create PostMethod object every time by passing url. Also use default params and its values. Thanks Valli -----Original Message----- From: raykroe...@gmail.com [mailto:raykroe...@gmail.com] On Behalf Of Raymond Kroeker Sent: Wednesday, January 21, 2009 10:32 AM To: HttpClient User Discussion Subject: Re: stream corruption What about the http methods themselves. Are you using the vanilla versions that come with http client; are you extending them in any way; are you using a request entity for either post/put? Raymond On Wed, Jan 21, 2009 at 10:20, <natarajan_va...@emc.com> wrote: > Raymond, > > Thanks for reply. > > 1. Yes & no. The problem re-occurs but things work fine when we resend > failed request. So, there is no testcase or data that reproduce the > problem as needed. > 2. I tried to buffer & dump content on server side before calling > ObjectInputStream and readObject in order to see content of malformed > stream. Unfortunately, the problem did not occur or at least the problem > is delayed for hours... > > Additional information is, we use MultiThreadedHttpConnectionManager on > client side. > > Thanks > Valli > > -----Original Message----- > From: raykroe...@gmail.com [mailto:raykroe...@gmail.com] On Behalf Of > Raymond Kroeker > Sent: Wednesday, January 21, 2009 10:07 AM > To: HttpClient User Discussion > Subject: Re: stream corruption > > Hi Natarajan, > I've been using hc 3.0.1 for a long while and have never noticed > this issue. I have a couple of questions. > > 1. Can you reproduce the event that causes the error? > 2. Can you see what the content of the malformed stream is? > > If neither of these is true I would suggest that you persist the > request content such that when the error occurs you can troubleshoot > the problem and ask better questions. > > Raymond > > On Wed, Jan 21, 2009 at 09:02, <natarajan_va...@emc.com> wrote: >> We use HttpClient version 3.0.1 and recently noticed stream > corruption. >> The corruption is noticed on server side when the server (webapp > running >> in Jboss server) receives those requests. We believe that at some > point >> content of 2 requests are mixed. Is that possible? The problem is very >> intermittent but happens very often. >> >> >> >> Here is the code snippet that receives the stream on server side >> >> >> >> ObjectInputStream reqStream = new >> ObjectInputStream(httpServletReq.getInputStream()); >> >> return (IRequest) reqStream.readObject(); >> >> >> >> >> >> exception returned by this when problem occurs >> >> >> >> java.lang.NullPointerException >> >> at >> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1820) >> >> at >> > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719 >> ) >> >> at >> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) >> >> at >> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908) >> >> at >> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832) >> >> at >> > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719 >> ) >> >> at >> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) >> >> at >> java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) >> >> >> >> Any idea to resolve this problem is highly appreciated! >> >> >> >> Thanks >> >> Valli >> >> >> >> > > > > -- > --------------------------------------------------------- > Raymond Kroeker > > --------------------------------------------------------------------- > To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org > For additional commands, e-mail: httpclient-users-h...@hc.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org > For additional commands, e-mail: httpclient-users-h...@hc.apache.org > > -- --------------------------------------------------------- Raymond Kroeker --------------------------------------------------------------------- To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org For additional commands, e-mail: httpclient-users-h...@hc.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org For additional commands, e-mail: httpclient-users-h...@hc.apache.org
