Description Missing name 2011-11-16 12:29:06 EST

Build Identifier: 

class java.security.MessageDigest is not thread safe and DigestAuthenticator will randomly fail (stack trace below) because of this, when there are multiple concurrent request using digest authentication.

This is related to this old Jetty 6 bug:
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CCcQFjAC&url=http%3A%2F%2Fjira.codehaus.org%2Fbrowse%2FJETTY-714&ei=l-_DToLBPMrKsgaA5vD3Cw&usg=AFQjCNGIqYIdDyAgPVgPVUqfhuH0MtY97A

And also this 2004 Tomcat bug gives more explanation:
https://issues.apache.org/bugzilla/show_bug.cgi?id=32137

The fix would be to have a static java.security.MessageDigest instance and wrap its methods in synchronized functions.

[qtp6510044-356  ] WARNING  - 01:56:03.699 - JDK14LoggerAdapter          : Committed before 401 null
[qtp6510044-356  ] WARNING  - 01:56:03.699 - JDK14LoggerAdapter          : /stream/image/fa3392015fe478eb4a5dbf5fd3a5a458
java.lang.IllegalStateException: Committed
        at org.eclipse.jetty.server.Response.resetBuffer(SourceFile:1059)
        at org.eclipse.jetty.server.Response.sendError(SourceFile:276)
        at org.eclipse.jetty.server.Response.sendError(SourceFile:378)
        at org.eclipse.jetty.security.authentication.DigestAuthenticator.validateRequest(SourceFile:175)
        at org.eclipse.jetty.security.SecurityHandler.handle(SourceFile:442)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SourceFile:227)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(SourceFile:940)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(SourceFile:409)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SourceFile:186)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(SourceFile:874)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(SourceFile:117)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(SourceFile:149)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(SourceFile:110)
        at org.eclipse.jetty.server.Server.handleAsync(SourceFile:394)
        at org.eclipse.jetty.server.HttpConnection.handleRequest(SourceFile:446)
        at org.eclipse.jetty.server.HttpConnection$a.headerComplete(SourceFile:904)
        at org.eclipse.jetty.http.HttpParser.parseNext(SourceFile:565)
        at org.eclipse.jetty.http.HttpParser.parseAvailable(SourceFile:217)
        at org.eclipse.jetty.server.BlockingHttpConnection.handle(SourceFile:50)
        at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SourceFile:245)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(SourceFile:598)
        at org.eclipse.jetty.util.thread.c.run(SourceFile:533)
        at java.lang.Thread.run(Unknown Source)

Reproducible: Sometimes

Steps to Reproduce:
Make a lot of concurrent requests with digest authetication.