import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

/**
 * Unit tests for {@link TransWaitNamedPipeResponse}.
 *

import static org.junit.jupiter.api.Assertions.assertTrue;

import java.lang.reflect.Field;
import java.nio.charset.StandardCharsets;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.junit.jupiter.MockitoExtension;

/**

## Theme

 - [Simple](https://github.com/codelibs/fess-theme-simple)
 - [Classic](https://github.com/codelibs/fess-theme-classic)

## Ingest

 - [Logger](https://github.com/codelibs/fess-ingest-logger)
 - [NDJSON](https://github.com/codelibs/fess-ingest-ndjson)

## Script

 - [Groovy](https://github.com/codelibs/fess-script-groovy)
 - [OGNL](https://github.com/codelibs/fess-script-ognl)

				relValue = joinSchema.ReflectValueOf(db.Statement.Context, currentReflectValue)
				if relValue.Kind() == reflect.Ptr {
					fullRelsName := utils.JoinNestedRelationNames(fullRels)
					// same nested structure
					if _, ok := joinedNestedSchemaMap[fullRelsName]; !ok {
						if value := reflect.ValueOf(values[idx]).Elem(); value.Kind() == reflect.Ptr && value.IsNil() {
							isNilPtrValue = true
							break
						}

This way, its schema will show up in the API docs user interface:

<img src="/img/tutorial/dataclasses/image01.png">

## Dataclasses in Nested Data Structures { #dataclasses-in-nested-data-structures }

You can also combine `dataclasses` with other type annotations to make nested data structures.

import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

import java.net.MalformedURLException;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

import static org.junit.jupiter.api.Assertions.assertTrue;

import java.net.MalformedURLException;
import java.net.URL;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

/**

    /** Injected search engine client for OpenSearch operations. */
    @Resource
    protected SearchEngineClient searchEngineClient;

    /** Injected helper for web and file system indexing operations. */
    @Resource
    protected WebFsIndexHelper webFsIndexHelper;

    /** Injected helper for data store indexing operations. */
    @Resource

        assertEquals(3.14, result.get("double"));
        assertEquals(false, result.get("boolean"));
        assertNull(result.get("null_value"));
        assertNotNull(result.get("nested"));
        assertEquals("nested_value", ((Map<String, Object>) result.get("nested")).get("nested_key"));
    }

    // Test interface contract consistency
    public void test_interfaceContract() {

        assertEquals(withCauseException.getCause(), withCauseException.getRootCause());

        // Test with nested causes
        RuntimeException middleCause = new RuntimeException("Middle", rootCause);
        TransportException nestedCauseException = new TransportException("Nested", middleCause);
        assertEquals(middleCause, nestedCauseException.getRootCause());