8058643: (str) Re-examine hashCode implementation

Reviewed-by: martin, alanb, sherman, redestad
2014-09-24 09:43:10 -07:00 · 2014-09-24 09:43:10 -07:00 · e3bda3bd0a
commit e3bda3bd0a
parent f07521a354
1 changed files with 3 additions and 5 deletions
--- a/jdk/src/java.base/share/classes/java/lang/String.java
+++ b/jdk/src/java.base/share/classes/java/lang/String.java
@ -1451,11 +1451,9 @@ public final class String
     */
    public int hashCode() {
        int h = hash;
-        if (h == 0 && value.length > 0) {
-            char val[] = value;
-
-            for (int i = 0; i < value.length; i++) {
-                h = 31 * h + val[i];
+        if (h == 0) {
+            for (char v : value) {
+                h = 31 * h + v;
            }
            hash = h;
        }