src/java.base/share/classes/sun/security/util/ArrayUtil.java

rev 52526 : Moving some code around

*** 30,40 ****
  import java.security.*;
  import jdk.internal.util.Preconditions;
  
  
  /**
!  * This class holds the various utility methods for array range checks.
   */
  
  public final class ArrayUtil {
  
      private static final BiFunction<String, List<Integer>,
--- 30,40 ----
  import java.security.*;
  import jdk.internal.util.Preconditions;
  
  
  /**
!  * This class holds the various utility methods for arrays.
   */
  
  public final class ArrayUtil {
  
      private static final BiFunction<String, List<Integer>,
*** 50,55 ****
--- 50,73 ----
  
      public static void nullAndBoundsCheck(byte[] array, int offset, int len) {
          // NPE is thrown when array is null
          Preconditions.checkFromIndexSize(offset, len, array.length, AIOOBE_SUPPLIER);
      }
+ 
+ 
+     private static void swap(byte[] arr, int i, int j) {
+         byte tmp = arr[i];
+         arr[i] = arr[j];
+         arr[j] = tmp;
+     }
+ 
+     public static void reverse(byte [] arr) {
+         int i = 0;
+         int j = arr.length - 1;
+ 
+         while (i < j) {
+             swap(arr, i, j);
+             i++;
+             j--;
+         }
+     }
  }