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

*** 336,346 ****
       */
      private static String toUnsignedString0(int val, int shift) {
          // assert shift > 0 && shift <=5 : "Illegal shift value";
          int mag = Integer.SIZE - Integer.numberOfLeadingZeros(val);
          int chars = Math.max(((mag + (shift - 1)) / shift), 1);
- 
          if (COMPACT_STRINGS) {
              byte[] buf = new byte[chars];
              formatUnsignedInt(val, shift, buf, 0, chars);
              return new String(buf, LATIN1);
          } else {
--- 336,345 ----
*** 475,485 ****
       * @implNote This method converts positive inputs into negative
       * values, to cover the Integer.MIN_VALUE case. Converting otherwise
       * (negative to positive) will expose -Integer.MIN_VALUE that overflows
       * integer.
       */
!     static void getChars(int i, int index, byte[] buf) {
          int q, r;
          int charPos = index;
  
          boolean negative = i < 0;
          if (!negative) {
--- 474,484 ----
       * @implNote This method converts positive inputs into negative
       * values, to cover the Integer.MIN_VALUE case. Converting otherwise
       * (negative to positive) will expose -Integer.MIN_VALUE that overflows
       * integer.
       */
!     static int getChars(int i, int index, byte[] buf) {
          int q, r;
          int charPos = index;
  
          boolean negative = i < 0;
          if (!negative) {
*** 506,518 ****
          }
  
          if (negative) {
              buf[--charPos] = (byte)'-';
          }
      }
  
!     static void getCharsUTF16(int i, int index, byte[] buf) {
          int q, r;
          int charPos = index;
  
          boolean negative = (i < 0);
          if (!negative) {
--- 505,518 ----
          }
  
          if (negative) {
              buf[--charPos] = (byte)'-';
          }
+         return charPos;
      }
  
!     static int getCharsUTF16(int i, int index, byte[] buf) {
          int q, r;
          int charPos = index;
  
          boolean negative = (i < 0);
          if (!negative) {
*** 539,548 ****
--- 539,549 ----
          }
  
          if (negative) {
              StringUTF16.putChar(buf, --charPos, '-');
          }
+         return charPos;
      }
  
      // Left here for compatibility reasons, see JDK-8143900.
      static final int [] sizeTable = { 9, 99, 999, 9999, 99999, 999999, 9999999,
                                        99999999, 999999999, Integer.MAX_VALUE };