@Override
      public <T> T[] toArray(T[] a) {
        toArrayCalled = true;
        return super.toArray(a);
      }
    }

    // Test that toArray() is used to make a defensive copy in copyOf(), so concurrently modified
    // synchronized collections can be safely copied.
    TestArrayList<String> toCopy = new TestArrayList<>();
    ImmutableSortedMultiset<String> unused =

            } else {
                System.clearProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
            }
        }
    }

    @Test
    public void test_thread_safety() {
        // Test concurrent access to the method
        String originalValue = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);

        try {
            System.setProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS, "thread-test");

 * limitations under the License.
 */
package okhttp3.internal.http

import java.io.IOException
import java.net.Proxy
import java.net.ProxySelector
import java.util.concurrent.TimeUnit
import javax.net.SocketFactory
import javax.net.ssl.HostnameVerifier
import javax.net.ssl.SSLSocketFactory
import javax.net.ssl.X509TrustManager
import okhttp3.Address
import okhttp3.Authenticator

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

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;

import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;

import java.nio.file.attribute.PosixFileAttributeView;
import java.nio.file.attribute.UserPrincipal;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.CloseableUtil;
import org.codelibs.core.io.InputStreamUtil;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.request.suggest;

import java.util.ArrayList;
import java.util.List;

import org.codelibs.fess.suggest.concurrent.Deferred;
import org.codelibs.fess.suggest.constants.FieldNames;
import org.codelibs.fess.suggest.constants.SuggestConstants;
import org.codelibs.fess.suggest.converter.ReadingConverter;

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import java.util.concurrent.TimeUnit
import kotlin.time.Duration
import okhttp3.internal.commonBuild
import okhttp3.internal.commonClampToInt
import okhttp3.internal.commonForceCache
import okhttp3.internal.commonForceNetwork

import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.Predicate;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.Nullable;

/**

import static com.google.common.collect.BoundType.OPEN;
import static com.google.common.collect.NullnessCasts.uncheckedCastNullableTToT;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.concurrent.LazyInit;
import java.io.Serializable;
import java.util.Comparator;
import java.util.Objects;
import org.jspecify.annotations.Nullable;

/**

        assertEquals(0, transPeekNamedPipe.writeParametersWireFormat(buffer, 10));
        assertEquals(0, transPeekNamedPipe.writeDataWireFormat(buffer, 20));
    }

    @Test
    @DisplayName("Should handle concurrent access to toString")
    void testToStringConcurrency() throws InterruptedException {
        // Arrange
        transPeekNamedPipe = new TransPeekNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_FID);