RFR: 8308995: Update Network IO JFR events to be static mirror events [v2]

[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 incrementally with one additional commit since the last revision:

  Avoid exceptions getting address/timeout for jfr event. Remove unused
  EventConiguration fields SOCKET_READ and SOCKET_WRITE.  Remove spurious
  whitespace.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/14342/files
  - new: https://git.openjdk.org/jdk/pull/14342/files/5faeb300..518adf8e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14342&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14342&range=00-01

  Stats: 21 lines in 3 files changed: 10 ins; 2 del; 9 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