6911113: These tests do not work with CYGWIN: java/nio

Reviewed-by: tbell, alanb

jdk/test/java/nio/channels/Selector/lots_of_updates.sh

@@ -30,7 +30,7 @@
 
 OS=`uname -s`
 case "$OS" in
-    Windows_* )
+    Windows_* | CYGWIN* )
         echo "ulimit not on Windows"
         exit 0
         ;;

jdk/test/java/nio/channels/spi/AsynchronousChannelProvider/custom_provider.sh

@@ -38,7 +38,7 @@ fi
 
 OS=`uname -s`
 case "$OS" in
-    Windows_* )
+    Windows_* | CYGWIN* )
         CLASSPATH="${TESTCLASSES};${TESTSRC}"
         ;;
     * )

jdk/test/java/nio/file/Files/walk_file_tree.sh

@@ -39,7 +39,7 @@ fi
 
 OS=`uname -s`
 case "$OS" in
-    Windows_* )
+    Windows_* | CYGWIN* )
         echo "This test does not run on Windows" 
         exit 0
         ;;

jdk/test/java/nio/file/Path/delete_on_close.sh

@@ -40,7 +40,7 @@ fi
 
 OS=`uname -s`
 case "$OS" in
-    Windows_* )
+    Windows_* | CYGWIN* )
         CLASSPATH="${TESTCLASSES};${TESTSRC}"
         ;;
     * )