src/java.base/share/classes/java/lang/Byte.java

rev 13019 : 8141678: sun.invoke.util.Wrapper eagerly initializes all integral type caches
Reviewed-by: TBD

*** 63,72 ****
--- 63,77 ----
       */
      @SuppressWarnings("unchecked")
      public static final Class<Byte>     TYPE = (Class<Byte>) Class.getPrimitiveClass("byte");
  
      /**
+      * Zero {@code Byte} constant.
+      */
+     private static final Byte ZERO = new Byte((byte)0);
+ 
+     /**
       * Returns a new {@code String} object representing the
       * specified {@code byte}. The radix is assumed to be 10.
       *
       * @param b the {@code byte} to be converted
       * @return the string representation of the specified {@code byte}
*** 80,91 ****
          private ByteCache(){}
  
          static final Byte cache[] = new Byte[-(-128) + 127 + 1];
  
          static {
!             for(int i = 0; i < cache.length; i++)
!                 cache[i] = new Byte((byte)(i - 128));
          }
      }
  
      /**
       * Returns a {@code Byte} instance representing the specified
--- 85,98 ----
          private ByteCache(){}
  
          static final Byte cache[] = new Byte[-(-128) + 127 + 1];
  
          static {
!             for(int i = 0; i < cache.length; i++) {
!                 int val = i - 128;
!                 cache[i] = (val == 0) ? ZERO : new Byte((byte)val);
!             }
          }
      }
  
      /**
       * Returns a {@code Byte} instance representing the specified