Reproduce MaxResetFramesTest.java test failure

[karthiknayak59]

Motivation:

we found that MaxResetFramesTest.java fails under the following conditions:

Total number of requests is in the range (0, 6)
http2MaxResetFramesPerWindow is set to 2
Assert connections opened: 2
Assert connections closed: 2

My understanding is that the 3rd request should close the first connection, while the 4th request should create a new connection. This second connection should then be closed by the 6th request. Therefore, the test should conclude with 2 opened and 2 closed connections. Is my understanding correct? But we noticed that only one connection is opened and closed.

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[ikhoon]

My understanding is that the 3rd request should close the first connection, while the 4th request should create a new connection.

If the requests were executed sequentially, your assumption would be correct.
However, the test sends requests in parallel. It first sends 11 headers over the HTTP/2 connection, which in turn triggers RST_STREAM frames.
As a result, one connection should be closed in the test.