import static org.codelibs.core.misc.AssertionUtil.assertState;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.lang.reflect.Array;
import java.util.AbstractMap;
import java.util.AbstractSet;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;

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/// tip

import static com.google.common.math.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.math.TestPlatform.intsCanGoOutOfRange;
import static java.lang.Math.min;
import static java.math.BigInteger.valueOf;
import static java.math.RoundingMode.FLOOR;
import static java.math.RoundingMode.UNNECESSARY;

import com.google.common.annotations.GwtCompatible;

import org.codelibs.core.beans.PropertyDesc;
import org.codelibs.core.beans.factory.BeanDescFactory;
import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.security.MessageDigestUtil;
import org.codelibs.fess.crawler.client.FesenClient;
import org.codelibs.fess.crawler.entity.OpenSearchAccessResult;

import static com.google.common.math.MathPreconditions.checkPositive;
import static com.google.common.math.MathPreconditions.checkRoundingUnnecessary;
import static java.lang.Math.abs;
import static java.lang.Math.min;
import static java.math.RoundingMode.HALF_EVEN;
import static java.math.RoundingMode.HALF_UP;

import com.google.common.annotations.GwtCompatible;

import com.google.errorprone.annotations.concurrent.GuardedBy;
import com.google.j2objc.annotations.J2ObjCIncompatible;
import com.google.j2objc.annotations.WeakOuter;
import java.lang.ref.WeakReference;
import java.time.Duration;
import java.util.Collections;
import java.util.EnumSet;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map.Entry;

    // they have been left as independent tests for clarity.

    if (part.length() < 1 || part.length() > MAX_DOMAIN_PART_LENGTH) {
      return false;
    }

    /*
     * GWT claims to support java.lang.Character's char-classification methods, but it actually only
     * works for ASCII. So for now, assume any non-ASCII characters are valid. The only place this
     * seems to be documented is here:

import com.google.errorprone.annotations.concurrent.GuardedBy;
import com.google.j2objc.annotations.J2ObjCIncompatible;
import com.google.j2objc.annotations.WeakOuter;
import java.lang.ref.WeakReference;
import java.time.Duration;
import java.util.Collections;
import java.util.EnumSet;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map.Entry;

    /**
     * <p>Unescapes any Java literals found in the <code>String</code> to a
     * <code>Writer</code>.</p> This is a slightly modified version of the
     * StringEscapeUtils.unescapeJava() function in commons-lang that doesn't
     * drop escaped separators (i.e '\,').
     *
     * @param str  the <code>String</code> to unescape, may be null
     * @return the processed string

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.CollectPreconditions.checkEntryNotNull;
import static com.google.common.collect.CollectPreconditions.checkNonnegative;
import static java.lang.System.arraycopy;
import static java.util.Objects.requireNonNull;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;