[1.1.0] Win 7 64: Java 8 memory problem

Hello all,
Not a question, I just hope it's useful info.
Sikuli 1.1.0.
I have 4-hour sequence of about 50 Sikuli tests, driven by Python Unittest from command line, running well for last half of year.
Having got new Windows 7 64 bit machine, I copied there the whole Sikuli stuff, and then installed the last Java (8.31) from java.com . Now it's difficult to find old Java there...
Sikuli seemed to start working well, and IDE worked well with separate scripts, but, trying to run the whole sequence, Java crashed after five or six tests (40 min), with Windows crash message box, because of insufficient memory for it. Extending the memory limit in runsikulix.cmd had no effect at all.
The problem was finally solved with installation of older Java (7.67)
Java 8 seems to have some problems.