Libreoffice Java x64 connection through UNO

Michael Stahl mstahl at
Wed Apr 11 03:46:32 PDT 2012

On 11/04/12 12:10, Tor Lillqvist wrote:
> I.e. does he want to develop a (64-bit) Java "extension" that would be
> run in a JVM instantiated in the (32-bit, on Windows) LO process, or
> use UNO to invoke interfaces in LO from a (64-bit) Java process?
> I thought that in the latter case the normal thing was that the Java
> code and LO are in separate processes? So in theory that the Java
> process is 64-bit and the LO one 32-bit should not matter? I might of
> course be quite confused, though.

IIRC in URE there is a "jpipe" library that is loaded into the JVM
process via JNI, and that has to match the ABI of the JVM of course.

> That said, the work required to make LO work as 64-bit code for
> Windows is not necessarily that huge. It's just a question of somebody
> having the time and inspiration to work on it. It's definitely not
> trivial either, though.

yes, so i guess this work would need to be finished in order to use
x86_64 JVM on Windows.

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