Under some exceptional circumstances, reading from a SocketInputStream can cause an ArrayIndexOutOfBoundsException. We have seen this occur in many other places (non HttpClient related), and since including HttpClient a few bugs have been reported with it as well. The exact cause is unknown and not easily reproduced, and the exception actually occurs in native code (java.net.SocketInputStream.socketRead0). I suggest adding a wrapper input stream around the underlying inputstream that extends all read-style calls, catches ArrayIndexOutOfBoundsException and rethrows it as an IOException.
An example bug report demonstrating this bug can be at: http://bugs.limewire.com/bugs/searching.jsp?l=80&c=46&m=-1_-1&os=- 1&offset=15 . (Note that we're currently redoing the internals of the bug server, so if that link doesn't work, you can reach the bug reports yourself by going to http://bugs.limewire.com/bugs/search.jsp , choosing or typing "java.lang.ArrayIndexOutOfBoundsException" as the exception to search for, and choosing or typing "org.apache.commons.httpclient.HttpParser" as the class that the error occurs in.)
Thanks, Sam
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