--- a/jdk/test/sun/jvmstat/testlibrary/utils.sh	Sun Jun 20 14:51:33 2010 -0700
+++ b/jdk/test/sun/jvmstat/testlibrary/utils.sh	Sun Jun 20 14:53:36 2010 -0700
@@ -189,3 +189,37 @@
         echo "Error sending term signal to ${kpid}!"
     fi
 }
+
+# check to see if a port is free
+checkPort() # port
+{
+    inuse=`netstat -a | egrep "\.$1"`
+    if [ "${inuse}" = "" ] ; then
+      echo "free"
+    else
+      echo "inuse"
+    fi
+}
+
+# Get a free port, where port+1 is also free, return 0 when giving up
+freePort()
+{
+  start=3000
+  while [ ${start} -lt 3030 ] ; do
+    port1=`expr ${start} '+' $$ '%' 1000`
+    port2=`expr ${port1} '+' 1`
+    if [ "`checkPort ${port1}`" = "inuse" \
+         -o "`checkPort ${port2}`" = "inuse" ] ; then
+      start=`expr ${start} '+' 1`
+    else
+      break
+    fi
+  done
+  if [ "`checkPort ${port1}`" = "inuse" \
+       -o "`checkPort ${port2}`" = "inuse" ] ; then
+    port1="0"
+  fi
+  echo "${port1}"
+}
+
+