Tomcat 9.0 async read becomes blocking

[Javateck]

Hi,

With NIO connector with Servlet 3.1 support, I’m registering with a 
ReadListener, while it got the first read signal from tomcat container (I tried 
9.0.19 and 9.0.53), the read call is blocked after isReady returns true

  if (ServletInputStream.isReady()) {
       ServletInputStream.read(buffer);  // this becomes blocking
  }

I tried with jetty, it’s working fine

When I did the test, I was holding the sending packet from client side

Not sure whether anyone has tried this

Thanks,
Andrew


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