LibreOffice in OpenBox, can not get accessibility (atspi) to work


I have Debian Linux environment with OpenBox.

I have innstalled LibreOffice 5 tried to get the accessibility (Accessibility | LibreOffice - Free Office Suite - Based on OpenOffice - Compatible with Microsoft) to work. Especially I need to on-screen virtual keyboard to open up, that happens via at-spi interface. I have my own virtual keyboard app that works fine with some other applications supporting at-spi, not with LO. Any ideas ? I have googled and searched LibreOffice and Java accesibility info.


As far as I know, we implement accessibility not using AT-SPI, but using an alternative technology named IAccessible2.