void (String[] args) { long mask = <warning descr="Negative int hexadecimal constant in long context">0xFFFF_FFFF</warning>; long mask1 = <warning descr="Negative int hexadecimal constant in long context">0X8000_0000</warning>; long mask2 = 0x7FFF_FFFF; long mask3 = 0xFFFF_FFFFL; long mask4 = -1; long mask5 = <warning descr="Negative int hexadecimal constant in long context">MASK</warning>; }