### Question:
XMLTransformerFactory { @Nonnull public static TransformerFactory getDefaultTransformerFactory () { return s_aDefaultFactory; } private  XMLTransformerFactory(); @Nonnull static TransformerFactory createTransformerFactory(@Nullable final ErrorListener aErrorListener,
                                                             @Nullable final URIResolver aURIResolver); static void makeTransformerFactorySecure(@Nonnull final TransformerFactory aFactory,
                                                   @Nullable final String... aAllowedExternalSchemes); @Nonnull static TransformerFactory getDefaultTransformerFactory(); @Nullable static Transformer newTransformer(); @Nullable static Transformer newTransformer(@Nonnull final TransformerFactory aTransformerFactory); @Nullable static Transformer newTransformer(@Nonnull final IReadableResource aResource); @Nullable static Transformer newTransformer(@Nonnull final TransformerFactory aTransformerFactory,
                                            @Nonnull final IReadableResource aResource); @Nullable static Transformer newTransformer(@Nonnull final Source aSource); @Nullable static Transformer newTransformer(@Nonnull final TransformerFactory aTransformerFactory, @Nonnull final Source aSource); @Nullable static Templates newTemplates(@Nonnull final IReadableResource aResource); @Nullable static Templates newTemplates(@Nonnull final Source aSource); @Nullable static Templates newTemplates(@Nonnull final TransformerFactory aFactory, @Nonnull final IReadableResource aResource); @Nullable static Templates newTemplates(@Nonnull final TransformerFactory aTransformerFactory, @Nonnull final Source aSource);  }### Answer:
@Test public void testGetDefaultTransformerFactory () { final TransformerFactory fac = XMLTransformerFactory.getDefaultTransformerFactory (); assertNotNull (fac); assertSame (fac, XMLTransformerFactory.getDefaultTransformerFactory ()); }