### Other (Cleanup or Flake)

- "Removed the ability to run `kubectl exec [POD] [COMMAND]` without a `--` separator.
  The `--` separator has been recommended since the Kubernetes v1.18 release, which also deprecated the legacy way of invoking `kubectl exec`.
  

                logger.error("IndexUpdater is terminated.", t);
                org.codelibs.fess.exec.Crawler.addError(t.getClass().getSimpleName());
            } else if (logger.isInfoEnabled()) {
                logger.info("IndexUpdater is terminated.");
                org.codelibs.fess.exec.Crawler.addError(t.getClass().getSimpleName());
            }
            forceStop();
        } finally {

 * 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 org.codelibs.fess.exec;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.PrintStream;
import java.lang.reflect.Method;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.atomic.AtomicInteger;

 * 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 org.codelibs.fess.exec;

import java.io.File;
import java.lang.management.ManagementFactory;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

 * 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 org.codelibs.fess.exec;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;

          <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>exec-maven-plugin</artifactId>
            <version>3.5.0</version>
            <executions>
              <execution>
                <id>print-java-11-home</id>
                <phase>initialize</phase>
                <goals>
                  <goal>exec</goal>
                </goals>
                <configuration>

          <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>exec-maven-plugin</artifactId>
            <version>3.5.0</version>
            <executions>
              <execution>
                <id>print-java-11-home</id>
                <phase>initialize</phase>
                <goals>
                  <goal>exec</goal>
                </goals>
                <configuration>

 * 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 org.codelibs.fess.exec;

import java.io.File;
import java.lang.management.ManagementFactory;
import java.time.LocalDateTime;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicInteger;

 * 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 org.codelibs.fess.exec;

import java.io.File;
import java.lang.reflect.Method;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.Constants;

 * 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 org.codelibs.fess.exec;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.PrintStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;