cleanup: remove redundant cast

src/main/java/tools/BCrypt.java

@@ -423,7 +423,7 @@ public class BCrypt {
         if ((int) x < 0 || (int) x > index_64.length) {
             return -1;
         }
-        return index_64[(int) x];
+        return index_64[x];
     }
 
     /**
@@ -566,8 +566,8 @@ public class BCrypt {
      * Initialise the Blowfish key schedule
      */
     private void init_key() {
-        P = (int[]) P_orig.clone();
-        S = (int[]) S_orig.clone();
+        P = P_orig.clone();
+        S = S_orig.clone();
     }
 
     /**
@@ -797,7 +797,7 @@ public class BCrypt {
         hashed = B.crypt_raw(passwordb, saltb, rounds,
                 minor == 'x',  // true for sign extension bug ('2x')
                 minor == 'a' ? 0x10000 : 0, // safety factor for '2a'
-                (int[])bf_crypt_ciphertext.clone());
+                bf_crypt_ciphertext.clone());
 
         rs.append("$2");
         if (minor >= 'a') {