case DEFAULT_SPACE:   return true; case IMMORTAL_SPACE:  return true; case BOOT_SPACE:	    return true; case META_SPACE:	    return true; default:              if (VM_Interface.VerifyAssertions) { Log.write("Plan.isLive: unknown space"); Log.writeln(space); VM_Interface.sysFail("Plan.isLive: unknown space"); } return false;
case DEFAULT_SPACE:   return true; case IMMORTAL_SPACE:  return true; case BOOT_SPACE:	  return true; case META_SPACE:	  return true; default: if (VM_Interface.VerifyAssertions) spaceFailure(obj, space, "Plan.isLive()"); return false;
  public static final boolean isLive(VM_Address obj) {    if (obj.isZero()) return false;    VM_Address addr = VM_Interface.refToAddress(obj);    byte space = VMResource.getSpace(addr);    switch (space) {      case DEFAULT_SPACE:   return true;      case IMMORTAL_SPACE:  return true;      case BOOT_SPACE:	    return true;      case META_SPACE:	    return true;      default:              if (VM_Interface.VerifyAssertions) {	                      Log.write("Plan.isLive: unknown space"); Log.writeln(space);			      VM_Interface.sysFail("Plan.isLive: unknown space");                            }			    return false;    }  }