いつのことからかわかりませんが、GlassFish v2上でMaven2プロジェクトを起動すると、

致命的: I/O error in channel Channel to Maven [/opt/sun-jdk-1.6.0.11/bin/java,
-Xmx512M, -cp,
/home/sogabe/share/glassfish/domains/domain1/applications/j2ee-modules/hudson/WEB-INF/lib/maven-agent-1.279-SNAPSHOT.jar:/usr/share/maven-bin-2.0/boot/classworlds-1.1.jar,
hudson.maven.agent.Main, /usr/share/maven-bin-2.0,
/home/sogabe/share/glassfish/domains/domain1/applications/j2ee-modules/hudson/WEB-INF/lib/remoting-1.279-SNAPSHOT.jar,
/home/sogabe/share/glassfish/domains/domain1/applications/j2ee-modules/hudson/WEB-INF/lib/maven-interceptor-1.279-SNAPSHOT.jar,
14723]
java.net.SocketException: Transport endpoint is not connected
at sun.nio.ch.SocketChannelImpl.shutdown(Native Method)
at sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:640)
at sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)
at
com.sun.enterprise.server.ss.provider.ASClientSocketImpl.shutdownInput(ASClientSocketImpl.java:172)
at java.net.Socket.shutdownInput(Socket.java:1362)
at hudson.remoting.SocketInputStream.close(SocketInputStream.java:28)
at java.io.BufferedInputStream.close(BufferedInputStream.java:451)
at java.io.ObjectInputStream$PeekInputStream.close(ObjectInputStream.java:2305)
at
java.io.ObjectInputStream$BlockDataInputStream.close(ObjectInputStream.java:2643)
at java.io.ObjectInputStream.close(ObjectInputStream.java:873)
at hudson.remoting.Channel$ReaderThread.run(Channel.java:653)

がログにはかれてる。ObjectInputStram#closeで発生しているようだけど、Tomcatでは発
生しない。運用には影響ないけどなんだろう。