### Question:
JsonCnd { @SuppressWarnings("WeakerAccess") public static List<QNodeTypeDefinition> getQTypesFromJson(final @NotNull JsonObject json, final @NotNull NamespaceMapping mapping) { return JavaxJson.mapObjectValues(json, uncheck2(qDefinitionMapper(mapping)), true); } private  JsonCnd(); @SuppressWarnings("WeakerAccess") static List<QNodeTypeDefinition> getQTypesFromJson(final @NotNull JsonObject json,
                      final @NotNull NamespaceMapping mapping); @SuppressWarnings("WeakerAccess") static List<PrivilegeDefinition> getPrivilegesFromJson(final @NotNull JsonValue json,
                          final @NotNull NamespaceMapping mapping); static JsonObject toJson(final @NotNull List<QNodeTypeDefinition> ntDefs,
                                    final @NotNull NamespaceMapping mapping); static JsonValue privilegesToJson(final @NotNull List<PrivilegeDefinition> privDefs,
                                             final @NotNull NamespaceMapping mapping); static List<JcrNs> toJcrNsList(final @NotNull NamespaceMapping mapping,
                                          final @NotNull NamespaceMappingRequest request); static Function<NodeTypeDefinition, QNodeTypeDefinition> adaptToQ(final @NotNull Session session); static Stream<Name> namedBy(final @NotNull QNodeTypeDefinition def); static Stream<Name> namedBy(final @NotNull PrivilegeDefinition def); static NamespaceMapping toNamespaceMapping(final List<JcrNs> jcrNsList); static @NotNull Stream<String> streamNsPrefix(final @NotNull String name); static List<Result<NodeTypeSet>> readNodeTypes(final @NotNull NamespaceMapping mapping,
                                                          final @NotNull List<URL> cndUrls); static NodeTypeSet aggregateNodeTypes(final @NotNull NamespaceMapping mapping,
                                                 final @NotNull List<NodeTypeSet> nodeTypeSets); static final NamespaceMapping BUILTIN_MAPPINGS; static final List<String> BUILTIN_NODETYPES; static final List<String> BUILTIN_PRIVILEGES; }### Answer:
@Test public void testGetQNodeTypesFromJson() { List<QNodeTypeDefinition> nts = JsonCnd.getQTypesFromJson( key("nt:foo", key("attributes", arr("mixin"))).get(), JsonCnd.BUILTIN_MAPPINGS); assertEquals("size is ", 1, nts.size()); assertEquals("name is", "foo", nts.get(0).getName().getLocalName()); assertEquals("uri is", Name.NS_NT_URI, nts.get(0).getName().getNamespaceURI()); }