Guidelines for time to stabilize in jdk9 before considering a backport to jdk8u

Seán Coffey sean.coffey at
Mon Jan 27 21:19:13 UTC 2014


I'm not aware of any guidelines around how much 'soak time' a patch 
should get in the main feature release line before being backported. I 
guess there are several factors involved.

Some being :

* Riskiness of the fix. (complexity/scope of change/impact)
* Test coverage available
* Timeline - Proximity to next GA date.

A complex fix may warrant some time (1-2+ weeks) in JDK 9 so that 
nightly/QA testing and EA bundle testing can help confirm how good a fix 
is. A simple fix probably warrants an immediate backport where desired. 
In the case of complex fixes, sufficient soak time can help avoid 
duplicate work for an engineer in JDK 9 and JDK 8u if regressions were seen.


On 27/01/14 07:11, Peter Levart wrote:
> Hi,
> I just wanted to ask if there are any guidelines about how much time a 
> patch should be in the jdk9 forest before considering a backport to 
> jdk8u.
> Regards, Peter

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