javaw.exe taking up 50% of WIN 7 cpu bandwidth per arduino IDE

I have the same problem with Windows 7, and Intel Core I5, and arduino 1.6.2

Does anyone has a solution ?

On the screenshot, arduino is not building, using serie monitor and anything else ... i just lauched the application, wait and took a screenshot

https://drive.google.com/open?id=0B7Uh3M3EZheaUW9UTXMyYk1aVDQ&authuser=0