hg: jdk/sandbox: More cleanup and test improvements

[alan.bateman at oracle.com]

Changeset: 733e9746d615
Author:    alanb
Date:      2019-04-29 09:03 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/733e9746d615

More cleanup and test improvements

! src/java.base/share/classes/java/net/ServerSocket.java
! src/java.base/share/classes/java/net/Socket.java
! test/jdk/ProblemList.txt
! test/jdk/java/net/ServerSocket/AcceptCauseFileDescriptorLeak.java
! test/jdk/java/net/Socket/Timeouts.java
! test/jdk/java/net/Socket/UdpSocket.java
! test/jdk/java/net/SocketImpl/BadUsages.java
! test/jdk/sun/security/ssl/SSLSocketImpl/NewSocketMethods.java