set_java_home() {
  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
  if [ -n "${JAVA_HOME-}" ]; then
    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
      # IBM's JDK on AIX uses strange locations for the executables
      JAVACMD="$JAVA_HOME/jre/sh/java"
      JAVACCMD="$JAVA_HOME/jre/sh/javac"
    else
      JAVACMD="$JAVA_HOME/bin/java"
      JAVACCMD="$JAVA_HOME/bin/javac"

CLASSPATH="\\\"\\\""


# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
        # IBM's JDK on AIX uses strange locations for the executables
        JAVACMD=$JAVA_HOME/jre/sh/java
    else
        JAVACMD=$JAVA_HOME/bin/java
    fi
    if [ ! -x "$JAVACMD" ] ; then
        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME

      export JAVA_HOME
    fi
  fi
fi

if [ -z "$JAVACMD" ]; then
  if [ -n "$JAVA_HOME" ]; then
    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
      # IBM's JDK on AIX uses strange locations for the executables
      JAVACMD="$JAVA_HOME/jre/sh/java"
    else
      JAVACMD="$JAVA_HOME/bin/java"
    fi
  else
    JAVACMD="$(
      \unset -f command 2>/dev/null
      \command -v java
    )"
  fi
fi

      // If the task crashed, start another thread to run the next task.
      if (!completedNormally) {
        startAnotherThread()
      }
    }
  }

  /**
   * Returns an immediately-executable task for the calling thread to execute, sleeping as necessary
   * until one is ready. If there are no ready queues, or if other threads have everything under

import org.opensearch.monitor.jvm.JvmInfo;
import org.opensearch.monitor.os.OsProbe;
import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * Executable class for generating thumbnails for indexed documents.
 * This class provides a command-line interface for thumbnail generation tasks.
 */
public class ThumbnailGenerator {

import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.lastaflute.job.LaJobRuntime;

/**
 * Abstract base class for executable jobs in the Fess search engine.
 * This class provides common functionality for job execution including process management,
 * logging configuration, JVM options, and timeout handling.
 *

                <phase>initialize</phase>
                <goals>
                  <goal>exec</goal>
                </goals>
                <configuration>
                  <executable>echo</executable>
                  <arguments>
                    <argument>${javaHome}</argument>
                  </arguments>
                  <outputFile>${project.build.directory}/java_11_home</outputFile>

                <phase>initialize</phase>
                <goals>
                  <goal>exec</goal>
                </goals>
                <configuration>
                  <executable>echo</executable>
                  <arguments>
                    <argument>${javaHome}</argument>
                  </arguments>
                  <outputFile>${project.build.directory}/java_11_home</outputFile>

import org.opensearch.monitor.jvm.JvmInfo;
import org.opensearch.monitor.os.OsProbe;
import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * Main executable class for running crawling operations in the Fess search engine.
 * This class serves as the entry point for crawling web content, file systems, and data stores.

   * delete the file and create a directory in its place, but this leads a race condition which can
   * be exploited to create security vulnerabilities, especially when executable files are to be
   * written into the directory.
   *
   * <p>This method assumes that the temporary volume is writable, has free inodes and free blocks,
   * and that it will not be called thousands of times per second.