--- old/src/java.desktop/share/classes/javax/swing/text/html/parser/Parser.java	2017-03-31 14:14:03.058560100 +0300
+++ new/src/java.desktop/share/classes/javax/swing/text/html/parser/Parser.java	2017-03-31 14:14:02.372973000 +0300
@@ -2119,8 +2119,11 @@
             }
 
             /* To account for extra read()'s that happened */
-            for (int j = 0; j < i; j++) {
-                addString(charsToAdd[j]);
+            if(i > 0) {
+                for (int j = 0; j < i; j++) {
+                    addString(charsToAdd[j]);
+                }
+                continue;
             }
             switch (ch) {
             case -1: