throws VM_PragmaUninterruptible {
throws VM_PragmaInterruptible {
  public static void initializeHeader(BootImageInterface bootImage, int ref,                                      Object[] tib, int size, boolean isScalar)    throws VM_PragmaUninterruptible {    //    int status = VM_JavaHeader.readAvailableBitsWord(bootImage, ref);    int status = getBootTimeAvailableBits(ref, tib, size, isScalar, 0);    VM_JavaHeader.writeAvailableBitsWord(bootImage, ref, status);  }