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From Filip Hanik - Dev Lists <devli...@hanik.com>
Subject Re: NullPointerExceptions on startup with NIO connector
Date Wed, 29 Oct 2008 14:15:01 GMT
thanks for the report, looks  it was fixed in trunk
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java?view=diff&r1=618058&r2=618059
I just forgot to backport it

Filip
 

Alex Talis wrote:
> Hi,
>  
> My Tomcat 6.0.18 throws NPEs if there are incoming connections to an NIO connector before
the connector had a chance to initialize.  The behavior that I would expect is for Tomcat
to simply refuse incoming connections until the connector is ready.
>  
> I found a similar post on this mailing list (http://mail-archives.apache.org/mod_mbox/tomcat-users/200802.mbox/%3c47A5F469.40201@apache.org%3e),
which links to Bug 43701 (https://issues.apache.org/bugzilla/show_bug.cgi?id=43701).  The
bug report describes the behavior that I'm seeing with 6.0.18, but says that it's fixed in
6.0.15 onwards.  Is it back?  Below is my config and how I reproduce the problem.  Exceptions
are the same as in the bug report above, but with different line numbers.  Thanks in advance
for your help.
>  
>  
> Tomcat version info (from running version.bat)
> -----------------------------------------------
> Server version: Apache Tomcat/6.0.18
> Server built:   Jul 22 2008 02:00:36
> Server number:  6.0.18.0
> OS Name:        Windows 2003
> OS Version:     5.2
> Architecture:   x86
> JVM Version:    1.5.0_05-b05
> JVM Vendor:     Sun Microsystems Inc.
>  
>  
> Steps to reproduce
> --------------------
> 1. Add an NIO connector to server.xml, like this
>  
>  <Connector port="8081" protocol="org.apache.coyote.http11.Http11NioProtocol" maxThreads="150"
>                connectionTimeout="20000" acceptorThreadCount="1" redirectPort="8444"
socket.directBuffer="false"/>
>  
> 2. Open browser and point it to http://localhost:8081/.  It's easier to reproduce with
Firefox for some reason.
> 3. Start Tomcat by double-clicking startup.bat
> 4. As Tomcat is starting, keep refreshing the browser by quickly clicking the refresh
button as fast as you can. It may not work the first time.
>
> You should see some NullPointerExceptions in Tomcat log, like this:
>  
> Oct 28, 2008 11:10:22 AM org.apache.tomcat.util.net.NioEndpoint setSocketOptions
> SEVERE:
> java.lang.NullPointerException
>         at org.apache.tomcat.util.net.NioEndpoint.setSocketOptions(NioEndpoint.java:1011)
>         at org.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:1204)
>         at java.lang.Thread.run(Unknown Source)
> Oct 28, 2008 11:10:22 AM org.apache.tomcat.util.net.NioEndpoint setSocketOptions
> SEVERE:
> java.lang.NullPointerException
>         at org.apache.tomcat.util.net.NioEndpoint.setSocketOptions(NioEndpoint.java:1011)
>         at org.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:1204)
>         at java.lang.Thread.run(Unknown Source)
> Oct 28, 2008 11:10:22 AM org.apache.coyote.http11.Http11NioProtocol start
> INFO: Starting Coyote HTTP/1.1 on http-8080
> Oct 28, 2008 11:10:22 AM org.apache.catalina.startup.Catalina start
> INFO: Server startup in 831 ms
>
>   


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