Round 2 feedback

[Michael Nascimento]

On Sun, Feb 10, 2013 at 10:42 AM, Patrick Wright <pdoubleya at gmail.com> wrote:
>> - Here is my greatest concern so far: parallel streams in their current
>> form will cause Java EE applications to fail miserably. In such
>> environments, threads cannot be freely created and all types of leaks and
>> exceptions can happen if one calls a method in a non-container managed
>> thread. Since calling parallelStream is cheap, I guess people will do it
>> often and it will be hard for Java EE developers to find out if any
>> third-party Java SE 8 code is safe to call or not - and enterprise
>> developers unaware of such restrictions, which are unfortunately the
>> majority, will be puzzled by never seen exceptions or erratic behaviour in
>> production. My suggestion would be to add a parameter to parallelStream
>> and
>> parallel which is an abstraction to thread management,  forcing people to
>> think about it. Then one can construct a wrapper over the
>> container-specific API for now and Java EE 8 can provide the standardized
>> one;
>
>
> It seems this is rather an ideal use for a Checkstyle rule or similar
> style-enforcer, e.g. to find calls to .parallelXXX and forbid them?

Well, not really since it can be in an "innocent" library somewhere or
in the future even inside the VM library code itself.

Regards,
Michael