ShutdownListener listener1 = new ShutdownListener() {
            @Override
            public void onShutdown() {
                callCount.incrementAndGet();
            }
        };

        ShutdownListener listener2 = new ShutdownListener() {
            @Override
            public void onShutdown() {
                callCount.addAndGet(10);
            }
        };

        // Add first listener

    /**
     * Initiates shutdown of the job executor.
     * This method notifies the shutdown listener to perform cleanup operations.
     */
    public void shutdown() {
        shutdownListener.onShutdown();
    }

    /**
     * Adds a shutdown listener to be notified when the executor is shutting down.
     *
     * @param listener the shutdown listener to add
     */

        }
    }

    private static class TestShutdownListener implements JobExecutor.ShutdownListener {
        private boolean shutdownCalled = false;

        @Override
        public void onShutdown() {
            shutdownCalled = true;
        }

        public boolean wasShutdownCalled() {
            return shutdownCalled;
        }
    }

        boolean shutdownListenerAdded = false;

        @Override
        public void addShutdownListener(ShutdownListener listener) {
            shutdownListenerAdded = true;
            listener.onShutdown();
        }

        @Override
        public Object execute(String scriptType, String script) {
            return null;
        }
    }

        @Override
        public void addShutdownListener(ShutdownListener listener) {
            shutdownListenerAdded = true;
            // Optionally execute the listener to test its behavior
            listener.onShutdown();
        }

        @Override
        public Object execute(String scriptType, String script) {
            return null;
        }
    }