RFR: 8263729: [test] Extend time to wait before destroying child in ProcssBuilder Basic test

[Ioi Lam]

On Wed, 17 Mar 2021 19:13:24 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Hmm. That's strange. 
>> 
>> One issue I don't understand with this test, should the parent not read from both streams simultaneously, because if the child is sending output to the stream the parent is not reading from the child may block on write? 
>> 
>> This depends on file io buffer size of course but if the child writes some larger output into e.g. stderr while the parent reads stdout, parent will wait on stdout and child will wait on the write to stderr finishing. So, either we should read both streams or redirect the stream we are not interested in to paren'ts stdout/stderr where hopefully the testrunner itself would read it.
>> 
>> I may misunderstand the test completely; if yes, sorry for the confusion!
>> 
>> Thomas
>
> The child does no (zero) writes to either stream.  It is invoked only to sleep until it is destroyed.
> The purpose of the test is to verify the exception that is thrown when the other end(child) of the pipe is closed (because the process has been forcibly terminated).

Hmm, maybe the child can create a file to indicate that bootstrap has finished.

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PR: https://git.openjdk.java.net/jdk/pull/3049