File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Java in General and the fly likes Porting OpenJDK to Windows (64 bit) Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Make it so: Java DB Connections & Transactions this week in the JDBC forum!
JavaRanch » Java Forums » Java » Java in General
Bookmark "Porting OpenJDK to Windows (64 bit)" Watch "Porting OpenJDK to Windows (64 bit)" New topic

Porting OpenJDK to Windows (64 bit)

Randy Nielsen

Joined: Jan 23, 2013
Posts: 3
I have started a port of OpenJDK to a Windows 64 environment, and am stumbling in a few places. Here are some questions (with observations) about this process.

1. When I started this project I expected that the web would have tons of information on this topic. However I find almost nothing, and less than that on 64 bit (instead of 32 bit) Windows. Does anyone have any thoughts on why this state of affairs exists? Related question: I have been unable to find a forum with recent posting activity on this topic; can someone make a recommendation?

2. The best instructions I can find are here:, and here: (this is the *official* guide to porting OpenJDK from Oracle). Both are slightly stale. For example there is a reference to the Summer 2004 build of DirectX (not on web anymore). Also both state that if you are using CygWin you must install the utility free.exe; however this is nowhere to be found on CygWin. Does anyone have more current instructions?

3. From the previous question: What kind of problem does the unavailability of free.exe portend as I get further into the port?

Thanks to everyone who posts a reply!


I agree. Here's the link:
subject: Porting OpenJDK to Windows (64 bit)
It's not a secret anymore!