<AWT Dev> RFR: 8213614 DnD operation change feature does not work with 64bit big endian CPU

[Ichiroh Takiguchi]

Hello,
IBM would like to contribute this patch to OpenJDK project.

Bug:    https://bugs.openjdk.java.net/browse/JDK-8213614
Change: https://cr.openjdk.java.net/~itakiguchi/8213614/webrev.00/

Issue:
This issue only happens on 64bit big endian CPU.
Keyboard's key data is 32bit, but current code picks up it for 64bit 
data
and casted for 32bit data.
This operation works on little endian CPU, but it does not work on BIG 
endian CPU.

Test instruction is in JDK-8213614.

I'd like to obtain a sponsor for this issue.

Thanks,
Ichiroh Takiguchi
IBM Japan, Ltd.