WL5.1 InternalImageServlet exceptions

[Henry Cooper]

hello,
have WL 5.1 running on my NT4.0 SP6a box and testing it out by hitting
http://localhost/index.html (set listenPort to 80). The page displays
correctly but the console shows:
Tue Apr 25 12:15:52 CDT 2000:<E> <ServletContext-General> Servlet failed
with Exception
java.lang.NoSuchMethodError: javax.servlet.ServletResponse: method
isCommitted()Z not found
at
weblogic.servlet.internal.InternalImageServlet.service(InternalImageServlet.
java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:105)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:742)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:686)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
Manager.java:247)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled
Code)

Tue Apr 25 12:15:52 CDT 2000:<E> <HTTP> Connection failure
java.net.SocketException: ReadFile on fd=624 failed with err=64
at weblogic.socket.NTSocketMuxer.initiateIO(Native Method)
at weblogic.socket.NTSocketMuxer.read(NTSocketMuxer.java:254)
at
weblogic.socket.MuxableSocketHTTP.requeue(MuxableSocketHTTP.java:157)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:267)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled
Code)

Hitting refresh generates more of the same. Any ideas on what the problem
is?

thanx-
Henry