* Fix an issue where filesystems are not unmounted when a backend is not reachable and returns EIO. ([#67097](https://github.com/kubernetes/kubernetes/pull/67097), [@chakri-nelluri](https://github.com/chakri-nelluri))

Calls are executed in one of two ways:

 * **Synchronous:** your thread blocks until the response is readable.
 * **Asynchronous:** you enqueue the request on any thread, and get [called back](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-callback/) on another thread when the response is readable.

import org.codelibs.fess.opensearch.config.cbean.CrawlingInfoCB;
import org.codelibs.fess.opensearch.config.exentity.CrawlingInfo;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

import org.codelibs.fess.opensearch.config.cbean.ElevateWordCB;
import org.codelibs.fess.opensearch.config.exentity.ElevateWord;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

import org.codelibs.fess.opensearch.config.cbean.PathMappingCB;
import org.codelibs.fess.opensearch.config.exentity.PathMapping;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

    // If there was an interruption or timeout (SocketTimeoutException), don't recover.
    // For the socket connect timeout case we do not try the same host with a different
    // ConnectionSpec: we assume it is unreachable.
    e is InterruptedIOException -> false

    // If the problem was a CertificateException from the X509TrustManager, do not retry.
    e is SSLHandshakeException && e.cause is CertificateException -> false

import org.codelibs.fess.opensearch.config.cbean.ScheduledJobCB;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.InputStreamThread;
import org.codelibs.fess.util.JobProcess;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.cbean.result.PagingResultBean;

import jakarta.servlet.ServletContext;

import org.codelibs.fess.opensearch.config.cbean.FileAuthenticationCB;
import org.codelibs.fess.opensearch.config.exentity.FileAuthentication;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        return requestBody;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        fail(); // Unreachable
        return null;
    }

    @Test
    void crudTest() {
        testCreate();
        testRead();
        testDelete();
    }

import org.codelibs.fess.opensearch.config.cbean.AccessTokenCB;
import org.codelibs.fess.opensearch.config.exentity.AccessToken;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;