### Question:
ClassFileProviderFactory implements Closeable { @NonNull public ClassFileResourceProvider getOrderedProvider() { return orderedClassFileResourceProvider; } ClassFileProviderFactory(@NonNull Collection<Path> paths); long getId(); @Override void close(); @NonNull ClassFileResourceProvider getOrderedProvider();  }### Answer:
@Test public void testResourceCachingAndOrdering() throws Exception { int nbJars = 10; List<Path> classpathEntries = Lists.newArrayListWithExpectedSize(nbJars); Collection<String> classes = Arrays.asList("A", "B", "C"); for (int i = 0; i < nbJars; i++) { classpathEntries.add(temporaryFolder.getRoot().toPath().resolve("input" + i + ".jar")); if (i < nbJars - 1) { DexArchiveTestUtil.createClasses(classpathEntries.get(i), classes); } else { DexArchiveTestUtil.createClasses(classpathEntries.get(i), ImmutableList.of("D")); } } try (ClassFileProviderFactory factory = new ClassFileProviderFactory(classpathEntries)) { assertThat(factory.getOrderedProvider().getClassDescriptors()) .hasSize(classes.size() + 1); for (String klass : DexArchiveTestUtil.getTestClassesDescriptors(classes)) { String desc = "L" + klass + ";"; ProgramResource fst = factory.getOrderedProvider().getProgramResource(desc); ProgramResource snd = factory.getOrderedProvider().getProgramResource(desc); assertThat(fst).isSameAs(snd); PathOrigin pathOrigin = (PathOrigin) fst.getOrigin().parent(); assertThat(pathOrigin.getPath().getFileName().toString()).isEqualTo("input0.jar"); } ProgramResource programResource = factory.getOrderedProvider().getProgramResource("Ltest/D;"); assertThat(programResource).isNotNull(); PathOrigin parent = (PathOrigin) programResource.getOrigin().parent(); assertThat(parent.getPath().getFileName().toString()) .isEqualTo("input" + (nbJars - 1) + ".jar"); } }