7076644: TEST_BUG: test/java/io/File/Basic.java fails with cygwin

Reviewed-by: alanb
Contributed-by: NEric Wang <yiming.wang@oracle.com>

test/ProblemList.txt

@@ -228,9 +228,6 @@ java/net/URLClassLoader/closetest/CloseTest.java                macosx-all
 # 6962637
 java/io/File/MaxPathLength.java                                 windows-all
 
-# 7076644
-java/io/File/Basic.java                                         windows-all
-
 # 7145435 - Test needs AWT window server, does not work headless
 java/io/Serializable/resolveClass/deserializeButton/run.sh      macosx-all
 

test/java/io/File/basic.sh

@@ -33,7 +33,16 @@ fi
 rm -rf x.Basic.*
 rm -f x.Basic.non
 printf "%s" "xyzzyN" > x.Basic.rw
-touch x.Basic.ro; chmod ugo-w x.Basic.ro
+touch x.Basic.ro
+OS=`uname -s`
+case "$OS" in
+  Windows_* | CYGWIN*)
+    attrib +R x.Basic.ro
+    ;;
+  *)
+    chmod ugo-w x.Basic.ro
+    ;;
+esac
 mkdir x.Basic.dir
 if $TESTJAVA/bin/java $* -classpath "$TESTCLASSES" Basic; then
   [ -f x.Basic.rw ] && (echo "x.Basic.rw not deleted"; exit 1)