I have to update the wiki whereas my article is up to date.
By the way, I advise you to ignore rumors and FUD campaigns against JogAmp APIs. Java3D 1.6.0 final is stable.
Finally, Sun Java3D 1.5.2 doesn't exist, the last version from Sun was Java3D 1.5.1. The version 1.5.2 was the first "community" version maintained with the help of Sun. Java3D 1.6.0 is the first version maintained by the JogAmp community. Please read carefully our articles in the wiki.
As Gouessej points out the 1.6.0 final is by far the best most up to date and stable release of Java3D.
It is far superior to the previous 1.5.2 version and fixes a myriad of problems and bugs.
The 1.7 version is just in a pre stage now, it will change over the coming months and will not be in a final form for possibly another 6 or 9 months ( or more).
It uses the OpenGL ES API, is a bit easier to use with Shaders and has some performance improvements over 1.6.0, so only if you are interested in those would you want o consider it.
But it's good to hear you are interested in using Java3D, I look forward to being able to assist!