Fix `SSLEngineService` test class to make sure it does not discard any network data between `handshaking` and `receive`.
With TLS1.3 the client starts sending application data immediately after sending the Finished message. The server may read some of that data in the `handshaking` method. This patch makes sure that any such data is delivered to the `receive` method for processing. ------------- Commit messages: - Preserve excess network data Changes: https://git.openjdk.org/jdk/pull/9773/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9773&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8227651 Stats: 51 lines in 8 files changed: 5 ins; 5 del; 41 mod Patch: https://git.openjdk.org/jdk/pull/9773.diff Fetch: git fetch https://git.openjdk.org/jdk pull/9773/head:pull/9773 PR: https://git.openjdk.org/jdk/pull/9773