import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

@GwtCompatible
@NullMarked
public class Helpers {
  // Clone of Objects.equals
  static boolean equal(@Nullable Object a, @Nullable Object b) {
    return a == b || (a != null && a.equals(b));
  }

  // Clone of Lists.newArrayList

  public static Method getSpliteratorNotImmutableCollectionAllowsAddMethod() {
    return Helpers.getMethod(
        CollectionSpliteratorTester.class, "testSpliteratorNotImmutable_collectionAllowsAdd");
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getSpliteratorNotImmutableCollectionAllowsRemoveMethod() {
    return Helpers.getMethod(

import static com.google.common.collect.testing.Helpers.NullsBeforeB;
import static com.google.common.collect.testing.Helpers.assertContains;
import static com.google.common.collect.testing.Helpers.assertContainsAllOf;
import static com.google.common.collect.testing.Helpers.assertContentsInOrder;
import static com.google.common.collect.testing.Helpers.assertEmpty;
import static com.google.common.collect.testing.Helpers.assertEqualInOrder;

import static com.google.common.collect.testing.Helpers.NullsBeforeB;
import static com.google.common.collect.testing.Helpers.assertContains;
import static com.google.common.collect.testing.Helpers.assertContainsAllOf;
import static com.google.common.collect.testing.Helpers.assertContentsInOrder;
import static com.google.common.collect.testing.Helpers.assertEmpty;
import static com.google.common.collect.testing.Helpers.assertEqualInOrder;

 * limitations under the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.assertContentsAnyOrder;
import static com.google.common.collect.testing.Helpers.copyToList;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS;

 * limitations under the License.
 */

package com.google.common.collect.testing;

import static com.google.common.collect.testing.Helpers.assertEqualIgnoringOrder;
import static com.google.common.collect.testing.Helpers.copyToList;
import static com.google.common.collect.testing.Helpers.copyToSet;
import static java.lang.System.arraycopy;
import static java.util.Arrays.asList;
import static java.util.Collections.frequency;

        throw PermittedMetaException.ISE;
      }
    }

    private List<E> getElements() {
      List<E> elements = new ArrayList<>();
      Helpers.addAll(elements, previousElements);
      Helpers.addAll(elements, Helpers.reverse(nextElements));
      return elements;
    }
  }

  public enum KnownOrder {
    KNOWN_ORDER,
    UNKNOWN_ORDER
  }

 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.assertEqualIgnoringOrder;
import static com.google.common.collect.testing.Helpers.assertEqualInOrder;
import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER;

 * limitations under the License.
 */

package com.google.common.collect.testing.testers;

import static com.google.common.collect.testing.Helpers.assertEqualIgnoringOrder;
import static com.google.common.collect.testing.Helpers.copyToList;
import static com.google.common.collect.testing.Helpers.mapEntry;
import static com.google.common.collect.testing.IteratorFeature.MODIFIABLE;

import junit.framework.TestCase;

import org.codelibs.core.io.ResourceUtil;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * {@link SAXParserFactoryUtil}のテストです。
 *
 * @author koichik
 */
public class SAXParserFactoryUtilTest extends TestCase {

    boolean included;

    /**