[jdk17u-dev] RFR: 8295944: Move the Http2TestServer and related classes into a package of its own

[Goetz Lindenmaier]

I backport this to simplify further backports. It's a refactoring of test infra.

I had to do resolves of Copyright, imports, and @test descriptions. A row of tests are not in 17.
In detail:


test/jdk/java/net/httpclient/AsFileDownloadTest.java
Needs resolve because earlier changes were al

test/jdk/java/net/httpclient/AsyncExecutorShutdown.java
Introduced in 19 by "8277969: HttpClient SelectorManager shuts down when custom Executor rejects a task"
This is a bug fix one wants to have in 17 at first sight, but it is a big change
and it had several follow ups. So better don't backport as prerequisite.

test/jdk/java/net/httpclient/CancelRequestTest.java
Resolved Copyright.

test/jdk/java/net/httpclient/CancelStreamedBodyTest.java
Introduced in 20 by "294916: Cancelling a request must eventually cause its response body subscriber to be unregistered"
This fix has many prereqs that would need to be backported. Omit.

test/jdk/java/net/httpclient/DigestEchoClient.java
Resolved Copyright.

test/jdk/java/net/httpclient/ExecutorShutdown.java
As above introduced by "8277969: HttpClient SelectorManager shuts down when custom Executor rejects a task". Omit.

test/jdk/java/net/httpclient/ExpectContinueTest.java
Introduced in 20 by "8286171: HttpClient/2 : Expect:100-Continue blocks indefinitely when response is not 100"

test/jdk/java/net/httpclient/HeadTest.java
Resolved Copyright and imports.
"8276559: (httpclient) Consider adding an HttpRequest.Builder.HEAD method to build a HEAD request." which came in 18
is a new feature with CSR that changed the imports.

test/jdk/java/net/httpclient/HttpClientLocalAddrTest.java
Introduced in 19 by "8209137: Add ability to bind to specific local address to HTTP client". A new
feature. Omit.

test/jdk/java/net/httpclient/ISO_8859_1_Test.java
Resolved Copyright

test/jdk/java/net/httpclient/MappingResponseSubscriber.java
Resolved imports.

test/jdk/java/net/httpclient/Response1xxTest.java
Introduced in 20 by 8292044: HttpClient doesn't handle 102 or 103 properly. Omit.


test/jdk/java/net/httpclient/SpecialHeadersTest.java
Resolved due to context.

test/jdk/java/net/httpclient/http2/IdleConnectionTimeoutTest.java
Was added by 8288717: Add a means to close idle connections in HTTP/2 connection pool in 20. Omit.

test/jdk/java/net/httpclient/http2/PushPromiseContinuation.java
Was added by 8263031: HttpClient throws Exception if it receives a Push Promise that is too large in 19. Omit.

test/jdk/java/net/httpclient/http2/UserInfoTest.java
Was added by 8292876: Do not include the deprecated userinfo component of the URI in HTTP/2 headers in 20. Omit.

test/jdk/java/net/httpclient/httpclient-localaddr-security.policy
Was added by 8209137: Add ability to bind to specific local address to HTTP client in 19. Omit.

test/jdk/java/net/httpclient/lib/jdk/httpclient/test/lib/common/HttpServerAdapters.java
Omitted Copyright, was already updated.

test/jdk/java/net/httpclient/lib/jdk/httpclient/test/lib/http2/Http2TestExchangeImpl.java
test/jdk/java/net/httpclient/lib/jdk/httpclient/test/lib/http2/Http2TestServer.java
test/jdk/java/net/httpclient/lib/jdk/httpclient/test/lib/http2/Http2TestServerConnection.java
test/jdk/java/net/httpclient/lib/jdk/httpclient/test/lib/http2/OutgoingPushPromise.java
Resolved Copyritht and in some the package statement.

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Commit messages:
 - Backport 8a47429dc065ad7645a40fa2350d043ef4606d92

Changes: https://git.openjdk.org/jdk17u-dev/pull/2311/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2311&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295944
  Stats: 4602 lines in 125 files changed: 209 ins; 3982 del; 411 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2311.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2311/head:pull/2311

PR: https://git.openjdk.org/jdk17u-dev/pull/2311