private final CountDownLatch returned = new CountDownLatch(1);
    private Object proxy;

    @SuppressWarnings("unchecked") // proxy for a generic class
    <V> Callable<V> waitFor(Callable<V> callable) {
      return waitFor(callable, Callable.class);
    }

    @SuppressWarnings("unchecked") // proxy for a generic class
    <V> ClosingCallable<V> waitFor(ClosingCallable<V> closingCallable) {

          mapEntry("foo", 5),
          mapEntry("bar", 3),
          mapEntry("baz", 17),
          mapEntry("quux", 1),
          mapEntry("toaster", -2));
    }

    @SuppressWarnings("unchecked")
    @Override
    public Entry<String, Integer>[] createArray(int length) {
      return (Entry<String, Integer>[]) new Entry<?, ?>[length];
    }

    @Override

          mapEntry("foo", 5),
          mapEntry("bar", 3),
          mapEntry("baz", 17),
          mapEntry("quux", 1),
          mapEntry("toaster", -2));
    }

    @SuppressWarnings("unchecked")
    @Override
    public Entry<String, Integer>[] createArray(int length) {
      return (Entry<String, Integer>[]) new Entry<?, ?>[length];
    }

    @Override

 */
package org.codelibs.fess.exception;

import jakarta.servlet.ServletException;

/**
 * Runtime exception wrapper for ServletException.
 *
 * This exception is used to wrap checked ServletExceptions and convert them
 * into unchecked RuntimeExceptions, allowing them to be thrown from methods
 * that don't declare ServletException in their throws clause.
 */
public class ServletRuntimeException extends RuntimeException {

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> of(E... contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> of(E... contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]

   *       exceptions).
   * </ul>
   *
   * <p>The overall principle is to continue to treat every checked exception as a checked
   * exception, every unchecked exception as an unchecked exception, and every error as an error. In
   * addition, the cause of any {@code ExecutionException} is wrapped in order to ensure that the

           * requireNonNull is safe because the first `2*(size+keyOffset)` elements have been filled
           * in.
           */
          @SuppressWarnings("unchecked")
          K key = (K) requireNonNull(alternatingKeysAndValues[2 * index + keyOffset]);
          @SuppressWarnings("unchecked")
          V value = (V) requireNonNull(alternatingKeysAndValues[2 * index + (keyOffset ^ 1)]);

    return new TreeRangeMap<>();
  }

  /**
   * Returns a new {@link TreeRangeMap} containing the same ranges as the given {@code RangeMap}.
   *
   * @since 33.4.0
   */
  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> TreeRangeMap<K, V> copyOf(
      RangeMap<K, ? extends V> rangeMap) {
    if (rangeMap instanceof TreeRangeMap) {

        assertEquals("value1", result.get("test_key"));
        assertEquals("value2", result.get("another_test_key"));

        @SuppressWarnings("unchecked")
        Map<String, Object> nestedResult = (Map<String, Object>) result.get("nested_map");
        assertEquals("nestedValue", nestedResult.get("nested_key"));
    }

    public void test_toLowerHyphen_emptyMap() {