public abstract UnmodifiableIterator<E> iterator();

  @Override
  @IgnoreJRERequirement // used only from APIs with Java 8 types in them
  // (not used within guava-android as of this writing, but we include it in the jar as a test)
  public Spliterator<E> spliterator() {
    return Spliterators.spliterator(this, SPLITERATOR_CHARACTERISTICS);
  }

  private static final Object[] EMPTY_ARRAY = {};

  @Override

```

### Code Quality and Formatting
```bash
# Format code according to project standards
mvn formatter:format

# Apply license headers to source files
mvn license:format

# Build JAR with all verifications
mvn clean package

# Generate test coverage report
mvn verify
# Coverage report available at: target/site/jacoco/index.html
```

### Project Structure
```
corelib/

import java.io.InputStream;
import java.net.URL;
import java.util.Properties;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.exception.ResourceNotFoundRuntimeException;
import org.codelibs.core.jar.JarFileUtil;
import org.codelibs.core.net.URLUtil;

/**
 * Utility class for resource handling.
 *
 * @author higa
 */
public abstract class ResourceUtil {

    /**
     * Do not instantiate.
     */

labels.plugin_type=Type
labels.plugin_name=Name
labels.plugin_version=Version
labels.plugin_delete=Delete
labels.plugin_install=Install
labels.plugin_install_title=Install Plugin
labels.plugin_jar_file=Jar File
labels.plugin_local_install=Local
labels.plugin_remote_install=Remote
labels.crud_button_install=Install
labels.storage_configuration=Storage
labels.storage_name=Name
labels.storage_size=Size

labels.plugin_list_name=外掛程式列表
labels.plugin_type=類型
labels.plugin_name=名稱
labels.plugin_version=版本
labels.plugin_delete=刪除
labels.plugin_install=安裝
labels.plugin_install_title=安裝外掛程式
labels.plugin_jar_file=Jar檔案
labels.plugin_local_install=本地
labels.plugin_remote_install=遠端
labels.crud_button_install=安裝
labels.storage_configuration=儲存
labels.storage_name=名稱
labels.storage_size=大小

labels.plugin_type=Typ
labels.plugin_name=Nazwa
labels.plugin_version=Wersja
labels.plugin_delete=Usuń
labels.plugin_install=Zainstaluj
labels.plugin_install_title=Zainstaluj wtyczkę
labels.plugin_jar_file=Plik Jar
labels.plugin_local_install=Lokalnie
labels.plugin_remote_install=Zdalnie
labels.crud_button_install=Zainstaluj
labels.storage_configuration=Przechowywanie
labels.storage_name=Nazwa
labels.storage_size=Rozmiar

labels.plugin_type=Type
labels.plugin_name=Name
labels.plugin_version=Version
labels.plugin_delete=Delete
labels.plugin_install=Install
labels.plugin_install_title=Install Plugin
labels.plugin_jar_file=Jar File
labels.plugin_local_install=Local
labels.plugin_remote_install=Remote
labels.crud_button_install=Install
labels.storage_configuration=Storage
labels.storage_name=Name
labels.storage_size=Size

    request itself.
 *  New: `Headers.Builder.addAll(Headers)`.
 *  New: `ResponseBody.create(MediaType, ByteString)`.
 *  New: Embed R8/ProGuard rules in the jar. These will be applied automatically by R8.
 *  Fix: Release the connection if `Authenticator` throws an exception.
 *  Fix: Change the declaration of `OkHttpClient.cache()` to return a `@Nullable Cache`. The return

labels.plugin_type=Tipo
labels.plugin_name=Nombre
labels.plugin_version=Versión
labels.plugin_delete=Eliminar
labels.plugin_install=Instalar
labels.plugin_install_title=Instalar plugin
labels.plugin_jar_file=Archivo Jar
labels.plugin_local_install=Local
labels.plugin_remote_install=Remoto
labels.crud_button_install=Instalar
labels.storage_configuration=Almacenamiento
labels.storage_name=Nombre
labels.storage_size=Tamaño

labels.plugin_list_name=플러그인 목록
labels.plugin_type=종류
labels.plugin_name=이름
labels.plugin_version=버전
labels.plugin_delete=삭제
labels.plugin_install=설치
labels.plugin_install_title=플러그인 설치
labels.plugin_jar_file=Jar 파일
labels.plugin_local_install=로컬
labels.plugin_remote_install=원격
labels.crud_button_install=설치
labels.storage_configuration=스토리지
labels.storage_name=이름
labels.storage_size=크기