RFR: 8299325: java/net/httpclient/CancelRequestTest.java fails "test CancelRequestTest.testGetSendAsync("https://localhost:46509/https1/x/same/interrupt", true, true)" [v2]

[Daniel Fuchs]

> The CancelRequestTest has been observed failing (rare and intermittent, but at least twice) in our CI.
> This fix increases the timeout waiting for resources to be released after cancelling the request, and add more diagnosis to the test code.

Daniel Fuchs has updated the pull request incrementally with one additional commit since the last revision:

  Update test/jdk/java/net/httpclient/CancelRequestTest.java

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Changes:
  - all: https://git.openjdk.org/jdk/pull/12233/files
  - new: https://git.openjdk.org/jdk/pull/12233/files/9847f7bc..2196dd9b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12233&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12233&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/12233.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12233/head:pull/12233

PR: https://git.openjdk.org/jdk/pull/12233