JDK/JRE tested: 6u18b02
OS/architecture: generic
Reproducible: Always
Reproducible on machine:
kendo.russia, adidas.ireland, stt-18.russia, stt-36.russia
Is it a platform specific regression: N
Is it a Regression: N
Test result on FCS: Fail
Test run log location:
Steps to reproduce:

cp from regression workspace files
cp /net/vice.russia/export/home0/regression/workspaces/1.6.0/1.6.0_18b02_j4b/j2se/test/java/nio/channels/SocketChannel/AdaptSocket.java .

cp /net/vice.russia/export/home0/regression/workspaces/1.6.0/1.6.0_18b02_j4b/j2se/test/java/nio/channels/TestUtil.java .

ik217385@ik217385-desktop:/export/jqa/regression/160u18b02/AdaptSocket$ /export/jdk/jdk1.6.0/bin/javac *.java
ik217385@ik217385-desktop:/export/jqa/regression/160u18b02/AdaptSocket$ /export/jdk/jdk1.6.0/bin/java AdaptSocket

opened: Socket[unconnected]
        java.nio.channels.SocketChannel[unconnected]
connected: Socket[addr=javaweb.sfbay.sun.com/10.5.31.43,port=13,localport=52652]
           java.nio.channels.SocketChannel[connected local=/10.16.32.162:52652 remote=javaweb.sfbay.sun.com/10.5.31.43:13]
javaweb.sfbay.sun.com/10.5.31.43:13 says: "Wed Sep 23 01:11:49 2009"
ishut: java.nio.channels.SocketChannel[connected ishut local=/10.16.32.162:52652 remote=javaweb.sfbay.sun.com/10.5.31.43:13]
oshut: java.nio.channels.SocketChannel[connected ishut oshut local=/10.16.32.162:52652 remote=javaweb.sfbay.sun.com/10.5.31.43:13]
closed: Socket[unconnected]
        java.nio.channels.SocketChannel[closed]

opened: Socket[unconnected]
        java.nio.channels.SocketChannel[unconnected]
connected: Socket[addr=javaweb.sfbay.sun.com/10.5.31.43,port=13,localport=52653]
           java.nio.channels.SocketChannel[connected local=/10.16.32.162:52653 remote=javaweb.sfbay.sun.com/10.5.31.43:13]
javaweb.sfbay.sun.com/10.5.31.43:13 says: "Wed Sep 23 01:11:50 2009"
ishut: java.nio.channels.SocketChannel[connected ishut local=/10.16.32.162:52653 remote=javaweb.sfbay.sun.com/10.5.31.43:13]
oshut: java.nio.channels.SocketChannel[connected ishut oshut local=/10.16.32.162:52653 remote=javaweb.sfbay.sun.com/10.5.31.43:13]
closed: Socket[unconnected]
        java.nio.channels.SocketChannel[closed]

opened: Socket[unconnected]
        java.nio.channels.SocketChannel[unconnected]
Connection timed out, as expected

connected: Socket[addr=javaweb.sfbay.sun.com/10.5.31.43,port=7,localport=36464]
           java.nio.channels.SocketChannel[connected local=/10.16.32.162:36464 remote=javaweb.sfbay.sun.com/10.5.31.43:7]
timeout: 0

connected: Socket[addr=javaweb.sfbay.sun.com/10.5.31.43,port=7,localport=36465]
           java.nio.channels.SocketChannel[connected local=/10.16.32.162:36465 remote=javaweb.sfbay.sun.com/10.5.31.43:7]
timeout: 8000

Exception in thread "main" java.net.ConnectException: Connection timed out
at sun.nio.ch.Net.connect(Native Method)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:507)
at AdaptSocket.testRead(AdaptSocket.java:110)
at AdaptSocket.main(AdaptSocket.java:135)


I think this is the test problem on irrelevant hosts, that hardcoded in TestUtil.java, because AdaptSocket try to connect on some ports different hosts.

   public static final String HOST = "javaweb.sfbay.sun.com";
   public static final String REFUSING_HOST = "jano.sfbay.sun.com";
   public static final String FAR_HOST = "theclub.ireland.sun.com";
   public static final String UNRESOLVABLE_HOST = "blah-blah.blah-blah.blah";

Test also fails with the same reason in Dublin (Ireland), so it's not misconfiguration in russia.
Ping is OK.
ik217385@ik217385-desktop:/export/jqa/regression/160u18b02/AdaptSocket$ ping javaweb.sfbay.sun.com
PING javaweb.sfbay.sun.com (10.5.31.43) 56(84) bytes of data.
64 bytes from javaweb.SFBay.Sun.COM (10.5.31.43): icmp_seq=1 ttl=244 time=190 ms
64 bytes from javaweb.SFBay.Sun.COM (10.5.31.43): icmp_seq=2 ttl=244 time=198 ms

So it may be closed ports on this hosts or another.