RFR: 8278166: java/nio/channels/Channels/TransferTo.java timed out [v2]

[Brian Burkhalter]

> In the `testMoreThanTwoGB()` sub-test, only fill the last section of the file with random data in order to reduce test execution time.

Brian Burkhalter 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:

 - 8278166: Replace RandomAccessFile with FileChannel.open + FileChannel.position(long)
 - Merge
 - 8278166: java/nio/channels/Channels/TransferTo.java timed out

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6707/files
  - new: https://git.openjdk.java.net/jdk/pull/6707/files/29c4e9f4..88a0e72d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6707&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6707&range=00-01

  Stats: 1914 lines in 119 files changed: 1364 ins; 234 del; 316 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6707.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6707/head:pull/6707

PR: https://git.openjdk.java.net/jdk/pull/6707