src/java.base/share/classes/java/nio/charset/Charset.java

*** 279,289 ****
      implements Comparable<Charset>
  {
  
      /* -- Static methods -- */
  
!     private static volatile String bugLevel;
  
      static boolean atBugLevel(String bl) {              // package-private
          String level = bugLevel;
          if (level == null) {
              if (!VM.isBooted())
--- 279,289 ----
      implements Comparable<Charset>
  {
  
      /* -- Static methods -- */
  
!     private static String bugLevel;
  
      static boolean atBugLevel(String bl) {              // package-private
          String level = bugLevel;
          if (level == null) {
              if (!VM.isBooted())