import org.jspecify.annotations.Nullable;

/**
 * Tests for {@code ForwardingSortedSet}.
 *
 * @author Louis Wasserman
 */
@NullUnmarked
public class ForwardingSortedSetTest extends TestCase {
  static class StandardImplForwardingSortedSet<T> extends ForwardingSortedSet<T> {
    private final SortedSet<T> backingSortedSet;

    StandardImplForwardingSortedSet(SortedSet<T> backingSortedSet) {

import org.jspecify.annotations.Nullable;

/**
 * Tests for {@code ForwardingSet}.
 *
 * @author Robert Konigsberg
 * @author Louis Wasserman
 */
@NullUnmarked
public class ForwardingSetTest extends TestCase {
  static class StandardImplForwardingSet<T> extends ForwardingSet<T> {
    private final Set<T> backingSet;

    StandardImplForwardingSet(Set<T> backingSet) {
      this.backingSet = backingSet;
    }

import java.util.Optional;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * This class provides a skeletal implementation of {@link ValueGraph}. It is recommended to extend
 * this class rather than implement {@link ValueGraph} directly.
 *
 * <p>The methods implemented in this class should not be overridden unless the subclass admits a
 * more efficient implementation.
 *
 * @author James Sexton

/**
 * UnsupportedExtractException is thrown when the content extraction is not supported.
 * It extends ExtractException and indicates that the requested extraction operation cannot be performed.
 *
 */
public class UnsupportedExtractException extends ExtractException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructor.
     * @param message The error message.
     */

 */
package org.codelibs.core.text;

import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;

import org.junit.Test;

/**
 * @author shinsuke
 *
 */
public class JsonUtilTest {
    @Test
    public void escape() {
        assertThat(JsonUtil.escape("abc123あア亜"), is("abc123あア亜"));
        assertThat(JsonUtil.escape("\\\"/\b\t\n\f\r\0"), is("\\\\\\\"\\/\\b\\t\\n\\f\\r\\u0000"));
    }

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.junit.Assert.assertThat;

import org.junit.Test;

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

    /**
     *
     */
    @Test
    public void test() {
        final SingleValueIterator<String> it = new SingleValueIterator<String>("Foo");

import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

/**
 * Exception that wraps {@link NoSuchAlgorithmException}.
 *
 * @author shinsuke
 */
public class InvalidKeyRuntimeException extends ClRuntimeException {

    private static final long serialVersionUID = -3176447530746274091L;

    /**
     * Creates a {@link InvalidKeyRuntimeException}.
     *
     * @param cause

import java.util.regex.Pattern;

import org.codelibs.fess.opensearch.config.bsbhv.BsBoostDocumentRuleBhv;
import org.codelibs.fess.util.ComponentUtil;

/**
 * @author FreeGen
 */
public class BoostDocumentRuleBhv extends BsBoostDocumentRuleBhv {
    private String indexName = null;

    @Override
    protected String asEsIndex() {
        if (indexName == null) {

import java.util.regex.Pattern;

import org.codelibs.fess.opensearch.config.bsbhv.BsFileConfigBhv;
import org.codelibs.fess.util.ComponentUtil;

/**
 * @author FreeGen
 */
public class FileConfigBhv extends BsFileConfigBhv {
    private String indexName = null;

    @Override
    protected String asEsIndex() {
        if (indexName == null) {

import java.util.regex.Pattern;

import org.codelibs.fess.opensearch.config.bsbhv.BsJobLogBhv;
import org.codelibs.fess.util.ComponentUtil;

/**
 * @author FreeGen
 */
public class JobLogBhv extends BsJobLogBhv {
    private String indexName = null;

    @Override
    protected String asEsIndex() {
        if (indexName == null) {