SingletonImmutableBiMap(K key, V value) {
    super(singletonMap(checkNotNull(key), checkNotNull(value)));
    this.singleKey = key;
    this.singleValue = value;
  }

  private SingletonImmutableBiMap(K key, V value, SingletonImmutableBiMap<V, K> inverse) {
    super(singletonMap(checkNotNull(key), checkNotNull(value)));
    this.singleKey = key;
    this.singleValue = value;

        final String k = "q";
        assertEquals("", getAsQuery(Collections.singletonMap(k, new String[] { "" })));
        assertEquals("aaa", getAsQuery(Collections.singletonMap(k, new String[] { "aaa" })));
        assertEquals("aaa bbb", getAsQuery(Collections.singletonMap(k, new String[] { "aaa bbb" })));
        assertEquals("aaa bbb ccc", getAsQuery(Collections.singletonMap(k, new String[] { "aaa bbb", "ccc" })));

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import java.nio.charset.Charset
import java.util.Collections.singletonMap
import java.util.Locale.US
import kotlin.text.Charsets.ISO_8859_1
import okhttp3.internal.unmodifiable

/**
 * An [RFC 7235][rfc_7235] challenge.
 *
 * [rfc_7235]: https://tools.ietf.org/html/rfc7235
 */

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static java.util.Collections.singletonMap;

import com.google.common.annotations.GwtCompatible;
import java.util.Map.Entry;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**

                    return singletonMap(entry.getKey(), entry.getValue());
                default:
                    return new MapN<>(map);
            }
        }
    }

    @SuppressWarnings("unchecked")
    static <K, V> Map<K, V> emptyMap() {
        return (Map<K, V>) EMPTY_MAP;
    }

    static <K, V> Map<K, V> singletonMap(K key, V value) {
        return new Map1<>(key, value);
    }

            .addValue(Arrays.asList("C"))
            .addValue(Arrays.asList())
            .add(SHORT_NAME, Collections.singletonMap("k1", "v1"))
            .add(LONG_NAME, Collections.singletonMap("k2", "v2"))
            .addValue(Collections.singletonMap("k3", "v3"))
            .addValue(Collections.emptyMap())
            .addValue(null)
            .add(SHORT_NAME, Optional.of("1"))

 * governing permissions and limitations under the License.
 */
package org.codelibs.opensearch.extension.kuromoji.index.analysis;

import static java.util.Collections.singletonMap;

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

import org.apache.lucene.analysis.CharArraySet;
import org.apache.lucene.analysis.StopFilter;
import org.apache.lucene.analysis.TokenStream;

  }

  public void testCopyOf_map_nulls() {
    Map<Class<? extends Number>, Number> nullKey = singletonMap(null, (Number) 1.0);
    assertThrows(NullPointerException.class, () -> ImmutableClassToInstanceMap.copyOf(nullKey));

    Map<? extends Class<? extends Number>, Number> nullValue = singletonMap(Number.class, null);
    assertThrows(NullPointerException.class, () -> ImmutableClassToInstanceMap.copyOf(nullValue));
  }

 */
public class StandardCrawlerContainer implements CrawlerContainer {

    private static final Logger logger = LogManager.getLogger(StandardCrawlerContainer.class);

    private final Map<String, ComponentHolder<?>> singletonMap = new ConcurrentHashMap<>();

    private final Map<String, ComponentDef<?>> prototypeMap = new ConcurrentHashMap<>();

    private boolean available = true;

    /**

        ToolchainModel model = new ToolchainModel();
        model.setType("TYPE");
        DefaultToolchain toolchain = newDefaultToolchain(model);

        assertFalse(toolchain.matchesRequirements(Collections.singletonMap("name", "John Doe")));
        verify(logger).debug("Toolchain {} is missing required property: {}", toolchain, "name");
    }

    @Test
    void testNonMatchingRequirementProperty() {