assertThrows(NullPointerException.class, () -> keys.toArray((Object[]) null));
      checkEmpty(cache);
    }
  }

  public void testKeySet_addNotSupported() {
    for (LoadingCache<Object, Object> cache : caches()) {
      assertThrows(UnsupportedOperationException.class, () -> cache.asMap().keySet().add(1));

      assertThrows(

    checkResult(J, ITERABLE_123, "1-2-3");

    assertThrows(NullPointerException.class, () -> J.join(ITERABLE_NULL));
    assertThrows(NullPointerException.class, () -> J.join(ITERABLE_1_NULL_2));

    assertThrows(NullPointerException.class, () -> J.join(ITERABLE_NULL.iterator()));
    assertThrows(NullPointerException.class, () -> J.join(ITERABLE_1_NULL_2.iterator()));
  }

  public void testOnCharOverride() {

  private final ImmutableList<Subscriber> integerSubscribers =
      ImmutableList.of(
          subscriber(bus, i1, "handleInteger", Integer.class),
          subscriber(bus, i2, "handleInteger", Integer.class),
          subscriber(bus, i3, "handleInteger", Integer.class));

  private final StringSubscriber s1 = new StringSubscriber("s1");
  private final StringSubscriber s2 = new StringSubscriber("s2");

    Iterable<String> iterable = asList("foo", "bar");
    assertThrows(IllegalArgumentException.class, () -> getOnlyElement(iterable, "x"));
  }

  @GwtIncompatible // Iterables.toArray(Iterable, Class)
  public void testToArrayEmpty() {
    Iterable<String> iterable = emptyList();
    String[] array = Iterables.toArray(iterable, String.class);
    assertTrue(Arrays.equals(new String[0], array));
  }

import org.gradle.test.sub2.GroovyInterface

class GroovyClassWithInnerTypes implements GroovyInterface {
    /**
     * This is an inner enum.
     */
    enum InnerEnum {}

    /**
     * This is an inner class.
     */
    static class InnerClass {
        InnerEnum enumProp

        /**
         * This is an inner inner class.
         */
        class AnotherInner {
            InnerClass outer
        }

import org.codelibs.core.beans.ParameterizedClassDesc;

/**
 * {@link ParameterizedClassDesc}の実装クラスです。
 *
 * @author koichik
 */
public class ParameterizedClassDescImpl implements ParameterizedClassDesc {

    /** 原型となるクラス */
    protected Class<?> rawClass;

    /** 型引数を表す{@link ParameterizedClassDesc}の配列 */
    protected ParameterizedClassDesc[] arguments;

    /**
     * インスタンスを構築します。
     *

    override fun getAstVisitorClass(): Class<*> = IntegrationTestFixtureVisitor::class.java
}


class IntegrationTestFixtureVisitor : AbstractAstVisitor() {

    /**
     * Determines if the class is an integration test. It's a bit weak, but we cannot
     * rely on the class node analysis since it doesn't give the right superclass because

    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(0));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(-1));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(0, 1, SECONDS));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(-1, 1, SECONDS));
  }

  public void testSimpleWithWait() {

      return ImmutableMap.copyOf(introspector.mappings);
    }

    @Override
    void visitClass(Class<?> clazz) {
      visit(clazz.getGenericSuperclass());
      visit(clazz.getGenericInterfaces());
    }

    @Override
    void visitParameterizedType(ParameterizedType parameterizedType) {
      Class<?> rawClass = (Class<?>) parameterizedType.getRawType();
      TypeVariable<?>[] vars = rawClass.getTypeParameters();

    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(0));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(-1));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(0, 1, SECONDS));
    assertThrows(IllegalArgumentException.class, () -> limiter.tryAcquire(-1, 1, SECONDS));
  }

  public void testSimpleWithWait() {