--- old/common/autoconf/boot-jdk.m4	2013-12-19 14:29:03.046734962 +0100
+++ new/common/autoconf/boot-jdk.m4	2013-12-19 14:29:02.962731514 +0100
@@ -54,10 +54,10 @@
             BOOT_JDK_VERSION=`"$BOOT_JDK/bin/java" -version 2>&1 | head -n 1`
 
             # Extra M4 quote needed to protect [] in grep expression.
-            [FOUND_VERSION_78=`echo $BOOT_JDK_VERSION | grep  '\"1\.[78]\.'`]
-            if test "x$FOUND_VERSION_78" = x; then
+            [FOUND_VERSION_89=`echo $BOOT_JDK_VERSION | grep  '\"1\.[89]\.'`]
+            if test "x$FOUND_VERSION_89" = x; then
               AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK is incorrect JDK version ($BOOT_JDK_VERSION); ignoring])
-              AC_MSG_NOTICE([(Your Boot JDK must be version 7 or 8)])
+              AC_MSG_NOTICE([(Your Boot JDK must be version 8 or 9)])
               BOOT_JDK_FOUND=no
             else
               # We're done! :-)