...from <https://github.com/flathub/org.libreoffice.LibreOffice/>:

Author: Stephan Bergmann <sbergman@redhat.com>
Date:   Mon May 14 16:51:37 2018 +0200

    Find flatpak'ed Java installation via JAVA_HOME

    ...instead of via PATH, so that a JAVA_HOME inherited from the environment
    doesn't accidentally select a different Java installation.  Fixes
    <https://github.com/flathub/org.libreoffice.LibreOffice/issues/37> "undefined
    symbol: FT_Done_MM_Var".

Change-Id: I2b4c3a55c92f0ef5c5925f0a9909b7b061eedeeb
Reviewed-on: https://gerrit.libreoffice.org/54330Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>