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

rev 54260 : 8221430: StringBuffer(CharSequence) constructor truncates when -XX:-CompactStrings specified

@@ -132,11 +132,11 @@
      * {@code CharSequence} argument.
      *
      * @param      seq   the sequence to copy.
      */
     public StringBuilder(CharSequence seq) {
-        super(String.LATIN1, seq.length(), 16);
+        super(getCharSequenceCoder(seq), seq.length(), 16);
         append(seq);
     }
 
     /**
      * Compares two {@code StringBuilder} instances lexicographically. This method