Added missing hashCode method.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1620923 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/java/org/apache/jasper/xmlparser/XMLString.java b/java/org/apache/jasper/xmlparser/XMLString.java
index b0c7f1d..d035aae 100644
--- a/java/org/apache/jasper/xmlparser/XMLString.java
+++ b/java/org/apache/jasper/xmlparser/XMLString.java
@@ -25,6 +25,8 @@
 
 package org.apache.jasper.xmlparser;
 
+import java.util.Arrays;
+
 /**
  * This class is used as a structure to pass text contained in the underlying
  * character buffer of the scanner. The offset and length fields allow the
@@ -138,6 +140,11 @@
     //
     // Object methods
     //
+    @Override
+    public int hashCode()
+    {
+        return Arrays.hashCode(ch);
+    }
 
     /** Returns a string representation of this object. */
     @Override