ADT_NO_CHANGE
public static final int ADT_NO_CHANGE = -2;
if (ruid == ADT_NO_CHANGE || euid == ADT_NO_CHANGE ||
rgid == ADT_NO_CHANGE || egid == ADT_NO_CHANGE) {
if (ruid != ADT_NO_CHANGE)
if (ruid != ADT_NO_CHANGE)
if (euid != ADT_NO_CHANGE)
if (rgid != ADT_NO_CHANGE)
if (egid != ADT_NO_CHANGE)