From 21d0cffb5485a1c725425119dfa5aaa1ab3615be Mon Sep 17 00:00:00 2001
From: hns <hannesw@gmail.com>
Date: Tue, 1 Mar 2005 12:15:51 +0000
Subject: [PATCH] Check for empty tag stack, fixing bug 414
 http://helma.org/bugs/show_bug.cgi?id=414

---
 src/helma/util/HtmlEncoder.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/helma/util/HtmlEncoder.java b/src/helma/util/HtmlEncoder.java
index 2358f4a7..c23307d1 100644
--- a/src/helma/util/HtmlEncoder.java
+++ b/src/helma/util/HtmlEncoder.java
@@ -714,7 +714,8 @@ public final class HtmlEncoder {
                         if (str.charAt(i - 1) == '/') {
                             // this is to avoid misinterpreting tags like
                             // <a href=http://foo/> as empty
-                            if (htmlTagMode != TAG_ATT_VAL && htmlTagMode != TAG_ATT_NAME) {
+                            if (!openTags.empty() && htmlTagMode != TAG_ATT_VAL &&
+                                                     htmlTagMode != TAG_ATT_NAME) {
                                 openTags.pop();
                             }
                         }