See a couple of EDITs in my original answer
. I'd try ripping the I/O & backgrounding stuff out, and see what shakes out.
I would highly, highly, highy recommend *NOT* trying to deal with the Kindlet (deprecated) / Booklet (private, highly obfuscated) APIs yourself, unless you have severe masochistic tendencies
.
As you might find out, even rebuilding KUAL itself requires a shitload of hoop-jumping, and full dumps from scarily old FW versions (or not, I may be mixing things up with CM. Kindlets are hell. Java is pain.). I do know that you won't be able to use anything newer than a JDK 8, as they all dropped support for the crappy old language version we need.
EDIT: Okay, for KUAL, you actually "just" need two or three old dumps, one for the KDK1 API, one for the KDK2 API, and one for the Booklet API. ;p. See the readme in the lib folder, which might not be entirely up-to-date.
Fun example (and I stopped caring a good long while ago, so I probably can't build current CollectionsManager versions).
Code:
┌─(niluje@illyria:pts/4)───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────(~)─┐
└─(0.13:26%:18:51:%)── du -h -d1 ~/Kindle/Kindlet-Dev ──(Sun, Nov 22)─┘
30M /home/niluje/Kindle/Kindlet-Dev/fw-520
26M /home/niluje/Kindle/Kindlet-Dev/fw-538
68M /home/niluje/Kindle/Kindlet-Dev/JDK-1.4.2_19
26M /home/niluje/Kindle/Kindlet-Dev/fw-534
15M /home/niluje/Kindle/Kindlet-Dev/Decompilers
19M /home/niluje/Kindle/Kindlet-Dev/fw-5371
37M /home/niluje/Kindle/Kindlet-Dev/fw-5442
20M /home/niluje/Kindle/Kindlet-Dev/fw-532
26M /home/niluje/Kindle/Kindlet-Dev/fw-539
40M /home/niluje/Kindle/Kindlet-Dev/fw-592
20M /home/niluje/Kindle/Kindlet-Dev/fw-512
26M /home/niluje/Kindle/Kindlet-Dev/fw-536
26M /home/niluje/Kindle/Kindlet-Dev/fw-530
26M /home/niluje/Kindle/Kindlet-Dev/fw-531
19M /home/niluje/Kindle/Kindlet-Dev/fw-5372
30M /home/niluje/Kindle/Kindlet-Dev/fw-544
26M /home/niluje/Kindle/Kindlet-Dev/fw-535
288K /home/niluje/Kindle/Kindlet-Dev/fw-411
268K /home/niluje/Kindle/Kindlet-Dev/fw-258
26M /home/niluje/Kindle/Kindlet-Dev/fw-5381
31M /home/niluje/Kindle/Kindlet-Dev/fw-5432
26M /home/niluje/Kindle/Kindlet-Dev/fw-533
31M /home/niluje/Kindle/Kindlet-Dev/fw-5431
37M /home/niluje/Kindle/Kindlet-Dev/fw-5451
20M /home/niluje/Kindle/Kindlet-Dev/fw-5321
30M /home/niluje/Kindle/Kindlet-Dev/fw-542
30M /home/niluje/Kindle/Kindlet-Dev/fw-5421
31M /home/niluje/Kindle/Kindlet-Dev/fw-545
19M /home/niluje/Kindle/Kindlet-Dev/fw-537
30M /home/niluje/Kindle/Kindlet-Dev/fw-5441
31M /home/niluje/Kindle/Kindlet-Dev/fw-543
4.0K /home/niluje/Kindle/Kindlet-Dev/MAIN
34M /home/niluje/Kindle/Kindlet-Dev/fw-540
46M /home/niluje/Kindle/Kindlet-Dev/fw-565
882M /home/niluje/Kindle/Kindlet-Dev