As of the last chapter, the received request ended with the
invoke() method being called on the
StandardHostValve. That valve extracts the context being targeted from the request and sets that context's class loader as the current thread's context class loader.
The context's pipeline is then invoked to process the request, which results in the
invoke() method of the
StandardContextValve being called. This method first checks whether a protected resource is being requested. Any request for a resource within the
/META-INF folders results in an HTTP response status code of 404, which indicates that the requested resource is not available.
This method also implements a busy wait, if it senses that the context is in the ...