I see with parallel installation of Master "LOdev 3.6.0alpha0+ – WIN7 Home Premium (64bit) ENGLISH UI [Build ID: 52348aa]" (tinderbox: Win-x86@6-fast, pull time 2012-04-27 21:25:23). Steps to reproduce:
0. Install Master build
1. Start LibO from WIN Porgram start center
> LibO Start center appears
2. Menu 'Tools -> Options -> LibO -> Java' check "USE a JRE"
Expected: Auto detection finds JRE 1.6.0_22 and 1.6.0_31 as LibO 3.4.5 does
Actual: no JRE found
Same with Master MinGW 2012-04-26
Already reported as 'Bug 48946 - not find JRE'
*** This bug has been marked as a duplicate of bug 48946 ***