RFR[8217825]: Verify @AfterTest is used correctly in WebSocket tests

[Patrick Concannon]

Hi, 




Would it be possible to have my fix for JDK-8217825 - Verify @AfterTest 
is used correctly in WebSocket tests - reviewed?

Following on from the discussion had here: 
https://mail.openjdk.java.net/pipermail/net-dev/2019-January/012141.html, 
I’ve refactored several websocket tests to explicitly close resources 
opened during each test method i.e. test servers and websockets.

Tests refactored:
- test/jdk/java/net/httpclient/websocket/AutomaticPong.java
- test/jdk/java/net/httpclient/websocket/WebsocketTest.java
- test/jdk/java/net/httpclient/websocket/SendTest.java
- test/jdk/java/net/httpclient/websocket/Abort.java


Further information on this bug can be found here: 
https://bugs.openjdk.java.net/browse/JDK-8217825



Webrev for fix: 
http://cr.openjdk.java.net/~pconcannon/8217825/webrevs/webrev.00/




Kind regards,


Patrick