diff --git a/jdk/test/java/nio/channels/Selector/lots_of_updates.sh b/jdk/test/java/nio/channels/Selector/lots_of_updates.sh
index 5054f18cc32..7b3bf0ee0e2 100644
--- a/jdk/test/java/nio/channels/Selector/lots_of_updates.sh
+++ b/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
         ;;
diff --git a/jdk/test/java/nio/channels/spi/AsynchronousChannelProvider/custom_provider.sh b/jdk/test/java/nio/channels/spi/AsynchronousChannelProvider/custom_provider.sh
index 13fb2a2fae0..5d12f532d3d 100644
--- a/jdk/test/java/nio/channels/spi/AsynchronousChannelProvider/custom_provider.sh
+++ b/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}"
         ;;
     * )
diff --git a/jdk/test/java/nio/file/Files/walk_file_tree.sh b/jdk/test/java/nio/file/Files/walk_file_tree.sh
index 73022d31d58..897625d46ac 100644
--- a/jdk/test/java/nio/file/Files/walk_file_tree.sh
+++ b/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
         ;;
diff --git a/jdk/test/java/nio/file/Path/delete_on_close.sh b/jdk/test/java/nio/file/Path/delete_on_close.sh
index 198e99d7201..c7f3299e144 100644
--- a/jdk/test/java/nio/file/Path/delete_on_close.sh
+++ b/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}"
         ;;
     * )