assertThat(union(newHashSet(1, 2), newHashSet(2, 3)).copyInto(new HashSet<>()))
        .containsExactly(1, 2, 3);
    assertThat(intersection(newHashSet(1, 2), newHashSet(2, 3)).copyInto(new HashSet<>()))
        .containsExactly(2);
    assertThat(difference(newHashSet(1, 2), newHashSet(2, 3)).copyInto(new HashSet<>()))
        .containsExactly(1);

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Stream;

        String targetModelVersion = determineTargetModelVersion(context);

        Set<Path> processedPoms = new HashSet<>();
        Set<Path> modifiedPoms = new HashSet<>();
        Set<Path> errorPoms = new HashSet<>();

        for (Map.Entry<Path, Document> entry : pomMap.entrySet()) {
            Path pomPath = entry.getKey();
            Document pomDocument = entry.getValue();

 */
package org.codelibs.fess.entity;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Consumer;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.service;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;

import org.gradle.internal.UncheckedException;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * Resolves partial type names into fully qualified type names.
 */
public class TypeNameResolver {
    private final Set<String> primitiveTypes = new HashSet<String>();
    private final List<String> groovyImplicitImportPackages = new ArrayList<String>();

/* HMACT64 keyed hashing algorithm
 * Copyright (C) 2003 "Eric Glass" <jcifs at samba dot org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,

/* HMACT64 keyed hashing algorithm
 * Copyright (C) 2003 "Eric Glass" <jcifs at samba dot org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,

        private final Pattern pattern = Pattern.compile("package\\s*([^;\\s]+)\\s*;");

        private final Set<String> packagesSeenBefore = new HashSet<>();
        private final Set<File> canonicalPackageInfos = new HashSet<>();

        @Override
        public boolean isSatisfiedBy(File file) {
            try {
                if (file.getName().equals("package-info.java")) {

 */
package org.codelibs.fess.app.web.base.login;

import static org.codelibs.core.stream.StreamUtil.split;
import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.entity.FessUser;
import org.codelibs.fess.helper.SystemHelper;