Eclipse - Failed to load the JNI shared library

Eclipse started to fail during the opening of it, showing a pop-up window saying "Failed to load the JNI shared library". I did not know what was this and started to look on the web.

Eclipse "Failed to Load the JNI shared library"

I've found out that this was a compatibility issue with jre/jdk 32 bit on a 64 bit machine.
I was running Eclipse 64 bit, with Windows 7 64 bit...
I remembered that I had installed a new software recently... and that installation added a jre 32 bit in the begining of my path. Due to this, Eclipse 64bit was being launched with a 32bit jre, causing that pop-up to appear.
Removed the jre 32 bit from the path, and then I was able to launch Eclipse again, like before!

Problem solved.