<AWT Dev> [10] JDK-8148344: Java robot keypress should be able to use extended key code characters as ? ? ?.

Semyon Sadetsky semyon.sadetsky at oracle.com
Tue Aug 22 16:33:29 UTC 2017


Are you sure that keyPress/keyRelease should emulate UTF8 symbols? 
Physical keyboard cannot produces so many keycodes with a single 


On 08/22/2017 01:57 AM, Shashidhara Veerabhadraiah wrote:
> Hi All, Please review fix for the /_enhancement_/ wherein the robot 
> key press of non-ascii were interpreted as question marks.
> Issue: The robot key press events was handling only the ascii inputs 
> and ignored the other Unicode inputs. Either it was throwing illegal 
> argument exception in windows or does nothing on the mac for those 
> Unicode inputs.
> Solution and fix: The platform specific api’s was unable handle the 
> non-ascii inputs. I have modified the api’s to accept the non-ascii 
> inputs and correspondingly send the message to the window to print the 
> non-ascii characters as well. Below is the picture of how the 
> non-ascii inputs are considered and printed onto the window.
> The solution spans across windows and mac platform and still in search 
> of a solution for the Linux platform. The solution implements key 
> scanning only upon existing valid ascii key was /_not_/ found and 
> assumes it as Unicode key and sends the event to event queue to be 
> processed as Unicode keys. Different formats are being used by 
> different platform implementation of Unicode. For ex., per the below 
> Unicode list, in the case of windows and mac, the key input can take 
> decimal values whereas on Linux it can only take the Code values.
> On Linux, I was able to get the KeySym of Unicode keys but was unable 
> to fake the key event as there was no mechanism available for the 
> same(which sends the key event to window). Please let me know if there 
> is any such mechanism available to simulate Unicode key events on 
> Linux platform. Hence I think to raise a bug for the Linux platform 
> and close this JDK-8148344 bug.
> Enhancement id: https://bugs.openjdk.java.net/browse/JDK-8148344
> Webrev: http://cr.openjdk.java.net/~sveerabhadra/8148344/webrev.00/ 
> <http://cr.openjdk.java.net/%7Esveerabhadra/8148344/webrev.00/>
> Thanks and regards,
> Shashi

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