@Deprecated
    public InputStreamThread(final InputStream is, final String charset) {
        this(is, Charset.forName(charset), MAX_BUFFER_SIZE, null);
    }

    public InputStreamThread(final InputStream is, final Charset charset, final int bufferSize, final Consumer<String> outputCallback) {
        super("InputStreamThread");
        this.bufferSize = bufferSize;

    protected Process process;

    protected InputStreamThread inputStreamThread;

    public JobProcess(final Process process) {
        this(process, InputStreamThread.MAX_BUFFER_SIZE, null);
    }

    public JobProcess(final Process process, final int bufferSize, final Consumer<String> outputCallback) {
        this.process = process;

            if (logger.isDebugEnabled()) {
                logger.debug("Thumbnail Command: {}", cmdList);
            }

            final Process p = pb.start();

            final InputStreamThread ist = new InputStreamThread(p.getInputStream(), Charset.defaultCharset(), 0, s -> {
                if (logger.isDebugEnabled()) {
                    logger.debug(s);
                }
            });

            currentProcess = pb.start();

            // monitoring
            mt = new MonitorThread(currentProcess, executionTimeout);
            mt.start();

            final InputStreamThread it = new InputStreamThread(currentProcess.getInputStream(), commandOutputEncoding, maxOutputLine);
            it.start();

            currentProcess.waitFor();
            it.join(5000);

import org.codelibs.core.io.CloseableUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.exception.JobNotFoundException;
import org.codelibs.fess.exception.JobProcessingException;
import org.codelibs.fess.util.InputStreamThread;
import org.codelibs.fess.util.JobProcess;

import jakarta.annotation.PreDestroy;

public class ProcessHelper {
    private static final Logger logger = LogManager.getLogger(ProcessHelper.class);

import org.codelibs.fess.helper.ProcessHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.InputStreamThread;
import org.codelibs.fess.util.JobProcess;
import org.codelibs.fess.util.SystemUtil;

import jakarta.servlet.ServletContext;

public class PythonJob extends ExecJob {