PrivilegeBits implements PrivilegeConstants { @NotNull public PrivilegeBits nextBits() { if (this == EMPTY) { return EMPTY; } else { return new PrivilegeBits(d.next()); } } private  PrivilegeBits(Data d); static PrivilegeBits getInstance(); @NotNull static PrivilegeBits getInstance(@NotNull PrivilegeBits... base); @NotNull static PrivilegeBits getInstance(@Nullable PropertyState property); @NotNull static PrivilegeBits getInstance(@Nullable Tree tree); static long calculatePermissions(@NotNull PrivilegeBits bits,
                                            @NotNull PrivilegeBits parentBits,
                                            boolean isAllow); boolean isEmpty(); @NotNull PrivilegeBits unmodifiable(); @NotNull PrivilegeBits modifiable(); boolean includes(@NotNull PrivilegeBits otherBits); boolean isBuiltin(); @NotNull PrivilegeBits add(@NotNull PrivilegeBits other); @NotNull PrivilegeBits diff(@NotNull PrivilegeBits other); @NotNull PrivilegeBits addDifference(@NotNull PrivilegeBits a, @NotNull PrivilegeBits b); @NotNull PrivilegeBits retain(@NotNull PrivilegeBits other); @NotNull PropertyState asPropertyState(@NotNull String name); @NotNull PrivilegeBits nextBits(); void writeTo(@NotNull Tree tree); @Override int hashCode(); @Override boolean equals(Object o); @Override String toString(); static final PrivilegeBits EMPTY; static final Map<String, PrivilegeBits> BUILT_IN; static final PrivilegeBits NEXT_AFTER_BUILT_INS; }
@Test public void testNextBits() { PrivilegeBits pb = READ_NODES_PRIVILEGE_BITS; long l = getLongValue(pb); while (l < Long.MAX_VALUE / 2) { l = l << 1; pb = pb.nextBits(); assertEquals(l, getLongValue(pb)); } for (int i = 0; i < 10; i++) { PrivilegeBits nxt = pb.nextBits(); assertEquals(nxt, pb.nextBits()); assertNotEquals(pb, nxt); pb = nxt; } pb = READ_NODES_PRIVILEGE_BITS; for (int i = 0; i < 100; i++) { PrivilegeBits modifiable = PrivilegeBits.getInstance(pb); try { modifiable.nextBits(); fail("UnsupportedOperation expected"); } catch (UnsupportedOperationException e) { } pb = pb.nextBits(); } }