public void testToOptionalNull() {
    Stream<@Nullable Object> stream = Stream.of((Object) null);
    assertThrows(NullPointerException.class, () -> stream.collect(toOptional()));
  }

  public void testToOptionalMultiple() {
    IllegalArgumentException expected =
        assertThrows(IllegalArgumentException.class, () -> Stream.of(1, 2).collect(toOptional()));
    assertThat(expected.getMessage()).contains("1, 2");
  }

/**
 * @author koichik
 */
public class ClassLoaderUtilTest {

    /**
     * @throws Exception
     */
    @Test
    public void testGetClassLoader() throws Exception {
        assertThat(ClassLoaderUtil.getClassLoader(Object.class), is(sameInstance(ClassLoaderUtil.class.getClassLoader())));

        assertThat(ClassLoaderUtil.getClassLoader(TestCase.class), is(sameInstance(TestCase.class.getClassLoader())));

	<component name="invokerAssistant" class="org.codelibs.fess.es.common.ImplementedInvokerAssistant"/>
	<component name="behaviorCommandInvoker" class="org.dbflute.bhv.core.BehaviorCommandInvoker"/>

	<!-- The components of Behavior. -->
	<component name="clickLogBhv" class="org.codelibs.fess.es.log.exbhv.ClickLogBhv"/>
	<component name="favoriteLogBhv" class="org.codelibs.fess.es.log.exbhv.FavoriteLogBhv"/>

    return new ClassSanityTester()
        .setDefault(byte[].class, new byte[] {1, 2, 3, 4})
        .setDistinctValues(byte[].class, new byte[] {1, 2, 3, 4}, new byte[] {5, 6, 7, 8})
        .setDistinctValues(String.class, "7f8005ff0e", "7f8005ff0f")
        .forAllPublicStaticMethods(HashCode.class);
  }

  private static void assertExpectedHashCode(ExpectedHashCode expectedHashCode, HashCode hash) {

    - tutorial/path-operation-configuration.md
    - tutorial/encoder.md
    - tutorial/body-updates.md
    - Dependencies:
      - tutorial/dependencies/index.md
      - tutorial/dependencies/classes-as-dependencies.md
      - tutorial/dependencies/sub-dependencies.md
      - tutorial/dependencies/dependencies-in-path-operation-decorators.md
      - tutorial/dependencies/global-dependencies.md

import org.dbflute.dbway.DBDef;
import org.dbflute.util.DfTypeUtil;

/**
 * @author ESFlute (using FreeGen)
 */
public class ThumbnailQueueDbm extends AbstractDBMeta {

    protected static final Class<?> suppressUnusedImportLocalDateTime = LocalDateTime.class;

    // ===================================================================================

    result = 31 * result + extensions.hashCode()
    return result
  }
}

internal data class AlgorithmIdentifier(
  /** An OID string like "1.2.840.113549.1.1.11" for sha256WithRSAEncryption. */
  val algorithm: String,
  /** Parameters of a type implied by [algorithm]. */
  val parameters: Any?,
)

internal data class AttributeTypeAndValue(
  /** An OID string like "2.5.4.11" for organizationalUnitName. */

            })
        }

        @Throws(IOException::class)
        private
        fun processEntry(zipEntry: ZipEntry, builder: Trie.Builder) {
            val name = zipEntry.name
            if (name.endsWith(".class")) {
                processClassFile(zipEntry, builder)
            }
        }

        @Throws(IOException::class)
        private

    } catch (AssertionFailedError error) {
      // expected
      assertContains("expected:<class ", error.getMessage());
    }
    assertFalse(errorNotThrown);
  }

  private static class ClassWhichDoesNotImplementEquals implements Serializable {
    private static final long serialVersionUID = 1L;
  }

  private static class ClassWhichIsAlwaysEqualButHasDifferentHashcodes implements Serializable {

    } catch (AssertionFailedError error) {
      // expected
      assertContains("expected:<class ", error.getMessage());
    }
    assertFalse(errorNotThrown);
  }

  private static class ClassWhichDoesNotImplementEquals implements Serializable {
    private static final long serialVersionUID = 1L;
  }

  private static class ClassWhichIsAlwaysEqualButHasDifferentHashcodes implements Serializable {