RFR: 8308995: Update Network IO JFR events to be static mirror events [v3]

[Tim Prinzing]

> The socket read/write JFR events currently use instrumentation of java.base code using templates in the jdk.jfr modules. This results in some java.base code residing in the jdk.jfr module which is undesirable.
> 
> JDK19 added static support for event classes. The old instrumentor classes should be replaced with mirror events using the static support.
> 
> In the java.base module:
> Added two new events, jdk.internal.event.SocketReadEvent and jdk.internal.event.SocketWriteEvent.
> java.net.Socket and sun.nio.ch.SocketChannelImpl were changed to make use of the new events.
> 
> In the jdk.jfr module:
> jdk.jfr.events.SocketReadEvent and jdk.jfr.events.SocketWriteEvent were changed to be mirror events.
> In the package jdk.jfr.internal.instrument, the classes SocketChannelImplInstrumentor, SocketInputStreamInstrumentor, and SocketOutputStreamInstrumentor were removed. The JDKEvents class was updated to reflect all of those changes.
> 
> The existing tests in test/jdk/jdk/jfr/event/io continue to pass with the new implementation:
> Passed: jdk/jfr/event/io/TestSocketChannelEvents.java
> Passed: jdk/jfr/event/io/TestSocketEvents.java
> 
> I added a micro benchmark which measures the overhead of handling the jfr socket events.
> test/micro/org/openjdk/bench/java/net/SocketEventOverhead.java.
> It needs access the jdk.internal.event package, which is done at runtime with annotations that add the extra arguments.
> At compile time the build arguments had to be augmented in make/test/BuildMicrobenchmark.gmk

Tim Prinzing has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains ten commits:

 - remove unused SOCKET_READ and SOCKET_WRITE configurations.
 - Merge branch 'master' into JDK-8308995
   
   # Conflicts:
   #	src/jdk.jfr/share/classes/jdk/jfr/events/EventConfigurations.java
 - Avoid exceptions getting address/timeout for jfr event. Remove unused
   EventConiguration fields SOCKET_READ and SOCKET_WRITE.  Remove spurious
   whitespace.
 - some changes from review.
   
   read0() to implRead()
   write0() to implWrite()
   trailing whitespace
 - fix copyright date
 - Added micro benchmark to measure socket event overhead.
 - Some changes from review.
   
   Append a 0 to method names being wrapped.  Use getHostString to avoid
   a reverse lookup when fetching the hostname of the remote address.
 - remove unnecessary cast
 - 8308995: Update Network IO JFR events to be static mirror events

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Changes: https://git.openjdk.org/jdk/pull/14342/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14342&range=02
  Stats: 908 lines in 13 files changed: 533 ins; 369 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/14342.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14342/head:pull/14342

PR: https://git.openjdk.org/jdk/pull/14342