}

            exitCode = process(options);
        } catch (final ContainerNotAvailableException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("SuggestCreator is stopped.", e);
            } else if (logger.isInfoEnabled()) {
                logger.info("SuggestCreator is stopped.");
            }
            exitCode = Constants.EXIT_FAIL;

        ExecResult r = exec(cmd);
        if (r.exitCode != 0) {
            throw new AssertionError(String.join(" ", cmd) + " failed: " + r);
        }
        return r.stdout;
    }

    private static final class ExecResult {
        final int exitCode;
        final String stdout;
        final String stderr;

        ExecResult(int exitCode, String stdout, String stderr) {

        }
        return r.stdout();
    }

    private record ExecResult(
        int exitCode,
        String stdout,
        String stderr
    ) {
        @Override
        public String toString() {
            return "exitCode=" + exitCode + ", stdout=" + summarize(stdout) + ", stderr=" + summarize(stderr);
        }

        private static String summarize(String s) {

            }
            exitCode = 0;
        } catch (final ContainerNotAvailableException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("ThumbnailGenerator is stopped.", e);
            } else if (logger.isInfoEnabled()) {
                logger.info("ThumbnailGenerator is stopped.");
            }
            exitCode = Constants.EXIT_FAIL;
        } catch (final Throwable t) {

            }

            exitCode = process(options);
        } catch (final ContainerNotAvailableException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Crawler is stopped.", e);
            } else if (logger.isInfoEnabled()) {
                logger.info("Crawler is stopped.");
            }
            exitCode = Constants.EXIT_FAIL;
        } catch (final Throwable t) {

            // Destroy the process
            int exitCode = processHelper.destroyProcess(sessionId);
            assertFalse(processHelper.isProcessRunning(sessionId));

            // Exit code should be non-zero for forcibly destroyed process, or -1
            assertTrue(exitCode != 0 || exitCode == -1);
        } catch (Exception e) {
            fail("Unexpected exception: " + e.getMessage());

                    if (exitValue != 0) {
                        logger.warn("{} failed: exitCode={}, command={}", getName(), exitValue, commandList);
                    }

                    if (logger.isDebugEnabled()) {
                        logger.debug("{} finished: exitCode={}", getName(), exitValue);
                    }
                    return exitValue;
                }

            }

            final int exitValue = currentProcess.exitValue();

            if (logger.isInfoEnabled()) {
                logger.info("Command execution completed for user: username={}, exitCode={}", username, exitValue);
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Process output:\n{}", it.getOutput());
            }