### Question:
ClassPathHelper { @Nonnull @ReturnsMutableCopy public static ICommonsList <String> getAllClassPathEntries () { final ICommonsList <String> ret = new CommonsArrayList <> (); forAllClassPathEntries (ret::add); return ret; } private  ClassPathHelper(); @Nonnull @ReturnsMutableCopy static ICommonsList <String> getAllClassPathEntries(); static void forAllClassPathEntries(@Nonnull final Consumer <? super String> aConsumer); static void printClassPathEntries(@Nonnull final PrintStream aPS); static void printClassPathEntries(@Nonnull final PrintStream aPS, @Nonnull final String sItemSeparator);  }### Answer:
@Test public void testGetAllClassPathEntries () { final List <String> l = ClassPathHelper.getAllClassPathEntries (); assertNotNull (l); for (final String sItem : l) assertNotNull (sItem); }