[OpenJDK 2D-Dev] Openjdk java2d rasterizer JEP for pisces (marlin) enhancements ?

dalibor topic dalibor.topic at oracle.com
Thu Feb 19 15:40:00 UTC 2015

On 19.02.2015 15:50, Mario Torre wrote:
> Ok, so let it not be a JEP. Let it not be a separate patch set for
> review. What other options are there?

Like I said, you start by finding a suitable home for the code in an
OpenJDK Project.

Once you have that, you can begin the process to bring the necessary
code over into that new home.

Once you have done that, you can begin to adjust the code to whichever
JDK Project you're targeting. If you're targeting JDK 9, for example, 
that means setting up a JDK 9 clone, adjusting the code accordingly, etc.

Once you have done that, you can start to separate the changes into 
different buckets - for example, bug fixes or simple performance 
enhancements might be easier to review and accept upstream than 
algorithmic improvements - I'd guess.

Once you have done that, your next goal should be to find the simplest 
possible change that you can get upstream from that Project, and then 
try to make it move upstream to familiarize yourself with the process 
and to socialize the planned changes.

It can be helpful to order the changes you want to make from simplest 
and smallest to largest, and then proceed accordingly, in order to get 
an idea of how much work it is to get a change of what complexity 
socialized, reviewed and integrated. [0]

Once you have done that, you might find that there is enough left over 
to draft a JEP, or two. Excellent, then go and draft a JEP, or two. At 
that point you will have a much better idea of what it takes whom to get 
your desired changes in what form into what release than when you 
started out. In addition, the reviewers will have a much better idea 
what to expect and plan for.

dalibor topic

[0] A neat post from a Linux kernel maintainer on the need to spend time 
to explore and socialize contributions in order to avoid rejection is 
available at https://paulmck.livejournal.com/38591.html

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