Merge pull request #949 from swankjesse/jwilson_0926_exceptions

Report the offending substring when number parsing fails

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/databind/util/ISO8601Utils.java

@@ -311,14 +311,14 @@ private static int parseInt(String value, int beginIndex, int endIndex) throws N
         if (i < endIndex) {
             digit = Character.digit(value.charAt(i++), 10);
             if (digit < 0) {
-                throw new NumberFormatException("Invalid number: " + value);
+                throw new NumberFormatException("Invalid number: " + value.substring(beginIndex, endIndex));
             }
             result = -digit;
         }
         while (i < endIndex) {
             digit = Character.digit(value.charAt(i++), 10);
             if (digit < 0) {
-                throw new NumberFormatException("Invalid number: " + value);
+                throw new NumberFormatException("Invalid number: " + value.substring(beginIndex, endIndex));
             }
             result *= 10;
             result -= digit;