From 1ee730515423860d6010489a0f63b85b73667398 Mon Sep 17 00:00:00 2001
From: tomsellers <tomsellers@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Sun, 2 Oct 2011 22:44:21 +0000
Subject: [PATCH] Small patch to jdwp-version.nse to address a corner case
 false positive.

---
 scripts/jdwp-version.nse | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/jdwp-version.nse b/scripts/jdwp-version.nse
index f57e1be90..282a39901 100644
--- a/scripts/jdwp-version.nse
+++ b/scripts/jdwp-version.nse
@@ -37,7 +37,7 @@ action = function(host, port)
         end
         -- match jdwp m|JDWP-Handshake| p/$1/ v/$3/ i/$2\n$4/
         local match = {string.match(result, "^JDWP%-Handshake%z%z..%z%z%z\1\128%z%z%z%z..([^%z\n]*)\n([^%z]*)%z%z..%z%z..%z%z..([0-9._]+)%z%z..([^%z]*)")}
-        if match == nil then
+        if match == nil or #match == 0 then
                 -- if we have one \128 (reply marker), it is at least not echo because the request did not contain \128
                 if (string.match(result,"^JDWP%-Handshake%z.*\128") ~= nil) then
                     port.version.name="jdwp"