src/java.base/share/classes/jdk/internal/misc/VM.java

*** 162,172 ****
       * @see java.lang.System#initPhase3
       */
      public static void initLevel(int value) {
          synchronized (lock) {
              if (value <= initLevel || value > SYSTEM_BOOTED)
!                 throw new InternalError();
              initLevel = value;
              lock.notifyAll();
          }
      }
  
--- 162,172 ----
       * @see java.lang.System#initPhase3
       */
      public static void initLevel(int value) {
          synchronized (lock) {
              if (value <= initLevel || value > SYSTEM_BOOTED)
!                 throw new InternalError("Bad level: " + value);
              initLevel = value;
              lock.notifyAll();
          }
      }