this._config.parent\n          }\n\n          return elem.classList.contains(CLASS_NAME_COLLAPSE)\n        })\n\n      if (actives.length === 0) {\n        actives = null\n      }\n    }\n\n    if (actives) {\n      activesData = $(actives).not(this._selector).data(DATA_KEY)\n      if (activesData && activesData._isTransitioning) {\n        return\n      }\n    }\n\n    const startEvent = $.Event(EVENT_SHOW)\n    $(this._element).trigger(startEvent)\n    if (startEvent.isDefaultPrevented()) {\n      return\n...

      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.

      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright {yyyy} {name of copyright owner}

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.

      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright {yyyy} {name of copyright owner}

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.

      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.

      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.

      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.

/// note | Technical Details

This works thanks to Python's <a href="https://docs.python.org/3/library/contextlib.html" class="external-link" target="_blank">Context Managers</a>.

**FastAPI** uses them internally to achieve this.

///

## Dependencies with `yield` and `HTTPException` { #dependencies-with-yield-and-httpexception }

You saw that you can use dependencies with `yield` and have `try` blocks that catch exceptions.

    public void destroy() {
    }

    /**
     * This method simply calls {@code negotiate( req, resp, false )}
     * and then {@code chain.doFilter}. You can override and call
     * negotiate manually to achive a variety of different behavior.
     */
    @Override
    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
            throws IOException, ServletException {

     *   <li>If {@link #CLASSES} path type is also set, then the dependency should be placed on the
     *       module path, but is also compatible with placement on the class path. Compatibility can
     *       be achieved, for example, by repeating in the {@code META-INF/services/} directory the services
     *       that are declared in the {@code module-info.class} file. In that case, the path type can be chosen
     *       by the plugin.</li>