RFR: 8238274: (sctp) JDK-7118373 is not fixed for SctpChannel [v2]

[Masanori Yano]

> Please review this change to the Unix implementations of sun.nio.ch.sctp.Sctp*ChannelImpl#implCloseSelectableChannel() 
> to be same as SocketChannelImpl at JDK-7118373. (The preClose is missing a check for the ST_KILLED state.)

Masanori Yano has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - 8238274: (sctp) JDK-7118373 is not fixed for SctpChannel
 - Merge branch 'master' of https://github.com/masyano/jdk into 8238274
 - 8238274: (sctp) JDK-7118373 is not fixed for SctpChannel

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5274/files
  - new: https://git.openjdk.java.net/jdk/pull/5274/files/31a23e2f..cd67ff8f

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5274&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5274&range=00-01

  Stats: 19064 lines in 853 files changed: 10843 ins; 4119 del; 4102 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5274.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5274/head:pull/5274

PR: https://git.openjdk.java.net/jdk/pull/5274