}

    /**
     * Check if storage has been destroyed
     */
    private void checkNotDestroyed() {
        if (destroyed) {
            throw new IllegalStateException("SecureCredentialStorage has been destroyed");
        }
    }

    @Override
    public void destroy() throws DestroyFailedException {
        if (!destroyed) {
            boolean failedToDestroy = false;

        private final int id;
        private boolean destroyed = false;

        public TestComponent() {
            this.id = instanceCounter.incrementAndGet();
        }

        public int getId() {
            return id;
        }

        public boolean isDestroyed() {
            return destroyed;
        }

        public void destroy() {
            this.destroyed = true;
        }

        }

        @Override
        public void destroy() {
            // Override to avoid null pointer issues with thread
            generating = false;
        }
    }

    @Override
    public void tearDown() throws Exception {
        if (thumbnailManager != null) {
            try {
                thumbnailManager.destroy();
            } catch (Exception e) {

        if (commandDestroyTimeoutStr != null) {
            commandDestroyTimeout = Long.parseLong(commandDestroyTimeoutStr);
        }
    }

    /**
     * Destroys the command generator and cleanup resources.
     */
    @Override
    public void destroy() {
        destoryTimer.cancel();
        destoryTimer = null;
    }

    }

    /**
     * Internal method to destroy a specific JobProcess.
     * Handles cleanup of streams, threads, and process termination.
     *
     * @param sessionId unique identifier for the process session
     * @param jobProcess the JobProcess to destroy
     * @return exit code of the destroyed process, or -1 if the process was null or could not be destroyed
     */

        byte[] encrypted = storage.encryptCredentials(plaintext);

        assertFalse(storage.isDestroyed(), "Storage should not be destroyed initially");

        // Destroy the storage - may throw DestroyFailedException if SecretKey doesn't support destroy
        try {
            storage.destroy();
        } catch (DestroyFailedException e) {
            // This is acceptable - not all JVM implementations support destroying SecretKey

        // Test availability check
        assertTrue(thumbnailGenerator.isAvailable());
    }

    public void test_destroy() {
        // Test destroy method - should not throw exception
        thumbnailGenerator.destroy();
        // After destroy, generator should not be available
        assertFalse(thumbnailGenerator.isAvailable());
    }

    public void test_createTask_withValidParams() {

        protected T instance;

        /**
         * The destroyer function to be called when the component is destroyed.
         */
        protected Consumer<T> destroyer;

        /**
         * Creates a new ComponentHolder with the specified instance and destroyer.
         * @param instance the component instance to hold
         * @param destroyer the destroyer function for cleanup (can be null)
         */

            assertTrue(processHelper.isProcessRunning());

            // Wait a bit for the processes to start
            Thread.sleep(50);

            // Destroy all processes
            processHelper.destroy();

            // Wait a bit for destruction to complete
            Thread.sleep(100);

            assertFalse(processHelper.isProcessRunning());
        } catch (Exception e) {

        if (rawKey != null) {
            Arrays.fill(rawKey, (byte) 0);
        }

        // Destroy the SecretKey if possible
        if (secretKey instanceof Destroyable) {
            try {
                ((Destroyable) secretKey).destroy();
            } catch (DestroyFailedException e) {
                log.warn("Failed to destroy SecretKey: {}", e.getMessage());
            }
        }

        // Remove from KeyStore