protected void extractAnnotations(final PDDocument doc, final StringWriter writer) {
        for (final PDPage page : doc.getPages()) {
            try {
                for (final PDAnnotation annotation : page.getAnnotations()) {
                    if (annotation instanceof final PDAnnotationFileAttachment annotationFileAttachment) {
                        final PDFileSpecification fileSpec = annotationFileAttachment.getFile();

    ImmutableList<Parameter> parameters = delegate.getParameters();
    assertEquals(1, parameters.size());
    assertEquals(new TypeToken<Iterable<String>>() {}, parameters.get(0).getType());
    assertThat(parameters.get(0).getAnnotations()).isEmpty();
    new EqualsTester().addEqualityGroup(parameters.get(0)).testEquals();
  }

  public void testInstanceMethod_call() throws Exception {