RFR: 8233725: ProcessTools.startProcess() has output issues when using an OutputAnalyzer at the same time [v2]

[Leonid Mesnik]

> ProcessTools.startProcess() creates process and read it's output error streams. So the any other using of corresponding Process.getInputStream() and Process.getErrorStream() doesn't get process streams.
> 
> This fix preserve process streams content and allow to read reuse the date. The ByteArrayOutputStream is used as a buffer. 
> It stores all process output, never trying to clean date which has been read. 
> 
> The regression test has been provided with issue.
> 
> I closed previous PR https://github.com/openjdk/jdk/pull/13560 by mistake instead of updating it.
> 
> I run all tests to ensure that no failures are introduced.

Leonid Mesnik has updated the pull request incrementally with two additional commits since the last revision:

 - fixed
 - renamed out to stdOut

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13594/files
  - new: https://git.openjdk.org/jdk/pull/13594/files/782e9cd6..b8bb6cb9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13594&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13594&range=00-01

  Stats: 15 lines in 1 file changed: 1 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/13594.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13594/head:pull/13594

PR: https://git.openjdk.org/jdk/pull/13594