// #pending hashCode(), equals()
    @Override
    public int instanceHash() {
        return super.hashCode();
    }

    @Override
    public String toString() {
        return getClass().getSimpleName() + ":" + doBuildColumnString(", ") + "@" + Integer.toHexString(hashCode());
    }

    protected abstract String doBuildColumnString(String dm);

    @Override

        final StackTraceElement topElement = exception.getStackTrace()[0];
        assertEquals("test_stackTrace", topElement.getMethodName());
        assertEquals(this.getClass().getName(), topElement.getClassName());
    }

    @Test
    public void test_serialization() {
        // Test that serialVersionUID is properly defined

        }
        Throwable target = t;
        if (target.getCause() == null) {
            return target.getClass().getSimpleName() + "[" + target.getMessage() + "]";
        }
        final StringBuilder sb = new StringBuilder();
        while (target != null) {
            sb.append(target.getClass().getSimpleName());
            if (target.getMessage() != null) {
                sb.append("[");

  }

  private static void assertValueAndTypeEquals(Object expected, Object actual) {
    assertEquals(expected, actual);
    assertEquals(expected.getClass(), actual.getClass());
  }

        // The first element should be from this test method
        StackTraceElement firstElement = stackTrace[0];
        assertEquals("test_stackTrace", firstElement.getMethodName());
        assertEquals(this.getClass().getName(), firstElement.getClassName());
    }

    @Test
    public void test_serialization() {
        // Test that the exception is serializable
        String message = "Serialization test";

        // Verify that the first stack trace element is from this test method
        StackTraceElement firstElement = exception.getStackTrace()[0];
        assertEquals(this.getClass().getName(), firstElement.getClassName());
        assertEquals("test_stackTrace", firstElement.getMethodName());
    }

    @Test
    public void test_serialVersionUID() {

      return (c == other.c) && (d == other.d) && (k0 == other.k0) && (k1 == other.k1);
    }
    return false;
  }

  @Override
  public int hashCode() {
    return (int) (getClass().hashCode() ^ c ^ d ^ k0 ^ k1);
  }

  private static final class SipHasher extends AbstractStreamingHasher {
    private static final int CHUNK_SIZE = 8;

    // The number of compression rounds.

    return result;
  }

  private List<Class<?>> loadClassesInPackage() throws IOException {
    List<Class<?>> classes = new ArrayList<>();
    String packageName = getClass().getPackage().getName();
    for (ClassPath.ClassInfo classInfo :
        ClassPath.from(getClass().getClassLoader()).getTopLevelClasses(packageName)) {
      Class<?> cls;
      try {
        cls = classInfo.load();
      } catch (NoClassDefFoundError e) {

        Field field = obj.getClass().getDeclaredField(fieldName);
        field.setAccessible(true);
        field.set(obj, value);
    }

    /**
     * Helper method to get private field value using reflection
     */
    private Object getPrivateField(Object obj, String fieldName) throws Exception {
        Field field = obj.getClass().getDeclaredField(fieldName);
        field.setAccessible(true);

    }

    private void assertQueryBuilder(String field, String value, Class<?> clazz) {
        QueryBuilder queryBuilder = queryCommand.buildMatchPhraseQuery(field, value);
        assertEquals(clazz, queryBuilder.getClass());
    }