.put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)
          .put(NoSuchElementException.class, e -> e instanceof NoSuchElementException)
          .put(NullPointerException.class, e -> e instanceof NullPointerException)

        // Test that FessUserNotFoundException is an instance of FessSystemException
        FessUserNotFoundException exception = new FessUserNotFoundException("testuser");

        assertTrue(exception instanceof FessSystemException);
        assertTrue(exception instanceof RuntimeException);
        assertTrue(exception instanceof Exception);
        assertTrue(exception instanceof Throwable);
    }

          .put(IllegalArgumentException.class, e -> e instanceof IllegalArgumentException)
          .put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)
          .put(NoSuchElementException.class, e -> e instanceof NoSuchElementException)

          .put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)
          .put(NoSuchElementException.class, e -> e instanceof NoSuchElementException)
          .put(NullPointerException.class, e -> e instanceof NullPointerException)

          .put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)
          .put(NoSuchElementException.class, e -> e instanceof NoSuchElementException)
          .put(NullPointerException.class, e -> e instanceof NullPointerException)

        // Verify inheritance chain
        assertTrue(queryParseException instanceof QueryParseException);
        assertTrue(queryParseException instanceof FessSystemException);
        assertTrue(queryParseException instanceof RuntimeException);
        assertTrue(queryParseException instanceof Exception);
        assertTrue(queryParseException instanceof Throwable);
    }

    public void test_nullHandling() {

        } catch (Exception e) {
            // Expected - utility classes should have private constructors
            assertTrue(e instanceof IllegalAccessException || e.getCause() instanceof IllegalAccessException
                    || e instanceof InstantiationException);
        }
    }

    public void test_constants_and_static_methods() {
        // Verify all public static methods exist

        if (o == null) {
            return null;
        } else if (o instanceof Float) {
            return (Float) o;
        } else if (o instanceof Number) {
            return Float.valueOf(((Number) o).floatValue());
        } else if (o instanceof String) {
            return toFloat((String) o);
        } else if (o instanceof java.util.Date) {
            if (pattern != null) {

        QueryBuilder builder = queryProcessor.execute(context, prefixQuery, 1.0f);

        assertNotNull(builder);
        assertTrue(builder instanceof DefaultQueryBuilder);

        // Query was processed successfully
    }

    public void test_convertPrefixQuery_withDefaultField_dismax() throws Exception {

        assertNotNull(result);
        assertTrue(result instanceof List);
        @SuppressWarnings("unchecked")
        List<Object> resultList = (List<Object>) result;
        assertEquals(3, resultList.size());

        // First element should be converted to Map since it's an Entity
        assertTrue(resultList.get(0) instanceof Map);