PrivilegeBits implements PrivilegeConstants { @NotNull public PrivilegeBits modifiable() { if (d instanceof ModifiableData) { return this; } else { return getInstance(this); } } 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 testModifiable() { assertNotSame(PrivilegeBits.EMPTY, PrivilegeBits.EMPTY.modifiable()); PrivilegeBits mod = PrivilegeBits.getInstance(READ_NODES_PRIVILEGE_BITS); assertSame(mod, mod.modifiable()); assertNotSame(mod, mod.unmodifiable()); assertNotEquals(mod, mod.unmodifiable()); }