http2

When sending a request body that decodes a Content type. If the request is sent as multipart with the right header set, but the body is empty, a 500 error is returned. This can cause problems with apps that have automatic reporting for internal server errors as it should be reported as a bad request

Checklist

• Dependencies installed
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• Searched existing issues and docs

Issue Description

When using the RateLimiter Middleware with a rate between 0 and 1 all events will be rejected instead of applying the specified rate. E.g.: e.Use(middleware.RateLimiter(middleware.NewRateLimiterMemoryStore(0.5)))

I am not saying that it is a common use case to have

The MinSendBackupAfterMs is now set to 1 ms. Unfortunately this causes backup requests to be send when there is low load. It would be useful if we could set the minimum a little bit higher for certain endpoints.

Latest Sofa Hessian version is 3.3.13, we can update it in Sofa rpc

JSON is the dominant exchange format for REST API.
However, Armeria's WebClient does not provide any JSON-specific APIs.
I believe it should be useful additions if we provide:

WebClient client = WebClient.of();
// Send a serialized JSON object with "applicaiton/json"
HttpResponse response = client.postJson("/items", new MyItem()); 
HttpResponse response = client.putJson("/items"

Currently we have a mix of:

• Out of memory error.
• Out of memory error
• out of memory error
• out of memory
• out of memory.
• out of memory [some context]

All these should be adjusted to use the same wording for consistency and it should also make the executable a little bit smaller 😄