Comment 2 for bug 1791658

hi tonton,

it looks like the very old knopflerfish, freeplane's OSGi framework (for 1.3.x),
does not work with the new java10. Ŷou should do too things:

1. Install java9 or java11. Freeplane will not work with Java10
(see https://bugs.openjdk.java.net/browse/JDK-8202580)
In general you should not assume that java applications work with a Java version
they are not built for.

2. Use the upstream 1.6.x deb, which was updated for Java9 and contains all dependencies:
https://sourceforge.net/projects/freeplane/files/freeplane%20stable/freeplane_1.6.15%7Eupstream-1_all.deb/download

Please report back to I can close this bug.

Cheers and Best Regards,
Felix