For Sword go with the CCSoQ.

For Java, find some Cruel Winged Harpoon of Alacrity/Evis.

You will be using Double throw, so:

IAS Frames per attack
0 % 8
2 % 7.5
7 % 7
15 % 6.5
24 % 6
40 % 5.5
63 % 5
99 % 4.5
168 % 4
395 % 3.5

168% is almost impossible to achieve, so you'll be aiming for 100% ias for some situations.
60% from armor, 20% from gloves, 20% from WH.

Without armor, you'll throw at 6.5fpa on a plain WH.
With a 20% ias on WH, you will take the speed up to 5.5fpa. Which is what I'd recommand.

Perfect (300/63) Cruel Winged Harpoon of Evis:
48 - 375 = 211.5 avg dmg.

Perfect (300) Cruel Winged Harpoon of Alacrity:
48 - 312 = 180 avg dmg.

I'll suggest some gears in my next post...