Fix #213 (name collision for long names, 12+ characters)

Author: cowtowncoder

release-notes/CREDITS

@@ -66,3 +66,7 @@ Ruediger Moeller (RuedigerMoeller@github)
 Florian Schoppmann (fschopp@github@github)
   * Reported #207: `ArrayIndexOutOfBoundsException` in `ByteQuadsCanonicalizer`
    (2.6.1)
+
+Iskren Ivov Chernev (ichernev@github)
+  * Reported #213: Parser is sometimes wrong when using CANONICALIZE_FIELD_NAMES
+   (2.6.2)

release-notes/VERSION

@@ -14,6 +14,11 @@ JSON library.
 === Releases ===
 ------------------------------------------------------------------------
 
+2.6.2 (not yet released)
+
+#213: Parser is sometimes wrong when using CANONICALIZE_FIELD_NAMES
+ (reported by ichernev@github)
+
 2.6.1 (09-Aug-2015)
 
 #207: `ArrayIndexOutOfBoundsException` in `ByteQuadsCanonicalizer`

src/main/java/com/fasterxml/jackson/core/sym/ByteQuadsCanonicalizer.java

@@ -702,7 +702,9 @@ private String _findSecondary(int origOffset, int hash, int[] q, int qlen)
         for (int end = offset + bucketSize; offset < end; offset += 4) {
             int len = hashArea[offset+3];
             if ((hash == hashArea[offset]) && (qlen == len)) {
-                return _names[offset >> 2];
+                if (_verifyLongName(q, qlen, hashArea[offset+1])) {
+                    return _names[offset >> 2];
+                }
             }
             if (len == 0) {
                 return null;