## Version 4.9.2

_2021-09-30_

 *  Fix: Don't include potentially-sensitive header values in `Headers.toString()` or exceptions.
    This applies to `Authorization`, `Cookie`, `Proxy-Authorization`, and `Set-Cookie` headers.
 *  Fix: Don't crash with an `InaccessibleObjectException` when running on JDK17+ with strong
    encapsulation enabled.

import org.codelibs.fess.app.service.RelatedContentService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.opensearch.config.exentity.RelatedContent;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.RenderDataUtil;
import org.dbflute.optional.OptionalEntity;

        List<FileNotifyInformation> notifications = response.getNotifyInformation();
        assertEquals(1, notifications.size());
        assertEquals("", notifications.get(0).getFileName());
    }

    /**
     * Helper method to create a buffer with a single notification
     */
    private byte[] createSingleNotificationBuffer(String fileName, int action) throws Exception {
        ByteBuffer buffer = ByteBuffer.allocate(1024);

import org.opensearch.core.xcontent.XContentHelper;
import org.opensearch.search.SearchHit;

/**
 * Utility class for search engine operations and content formatting.
 * Provides helper methods for working with XContent builders, scrolling through search results,
 * and converting XContent objects to different output formats.
 */
public final class SearchEngineUtil {

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.exception.FessSystemException;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.RenderDataUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.lastaflute.web.Execute;

import static com.google.common.math.MathPreconditions.checkRoundingUnnecessary;

import com.google.common.annotations.GwtIncompatible;
import java.math.RoundingMode;

/**
 * Helper type to implement rounding {@code X} to a representable {@code double} value according to
 * a {@link RoundingMode}.
 */
@GwtIncompatible
abstract class ToDoubleRounder<X extends Number & Comparable<X>> {
  /**

It might also help avoid confusion for new developers that see an unused parameter in your code and could think it's unnecessary.

///

/// info

In this example we use invented custom headers `X-Key` and `X-Token`.

But in real cases, when implementing security, you would get more benefits from using the integrated [Security utilities (the next chapter)](../security/index.md){.internal-link target=_blank}.

///

  fun headersAreRedacted() {
    val networkInterceptor =
      HttpLoggingInterceptor(networkLogs).setLevel(
        Level.HEADERS,
      )
    networkInterceptor.redactHeader("sEnSiTiVe")
    val applicationInterceptor =
      HttpLoggingInterceptor(applicationLogs).setLevel(
        Level.HEADERS,
      )
    applicationInterceptor.redactHeader("sEnSiTiVe")
    client =
      OkHttpClient
        .Builder()

      ImmutableList.of(0, 1, 2, 3, 4, 7, 10, 15, 20, 25, 40, 70);

  /* Helper function to make a Long value from an Integer. */
  private static final Function<Integer, Long> TO_LONG =
      new Function<Integer, Long>() {
        @Override
        public Long apply(Integer n) {
          return Long.valueOf(n);
        }
      };

  /* Helper function to make a BigInteger value from a Long. */

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.helper.PathMappingHelper;
import org.codelibs.fess.opensearch.config.bsentity.BsPathMapping;

/**
 * @author FreeGen
 */
public class PathMapping extends BsPathMapping {