#2591 Freeplane freezes occasionally

[Nick]

Freeplane sometimes freezes, CPU goes to 100%. It occured at least 2 times as I was entering text in a node. It has occured at least 2 more times but I don't remember if it was during entering text. I have to kill the process and restart Freeplane every time i.e. data are gone if previously not saved.

Java Version:
openjdk version "10.0.1" 2018-04-17
OpenJDK Runtime Environment (build 10.0.1+10)
OpenJDK 64-Bit Server VM (build 10.0.1+10, mixed mode)

[Felix Natter]

hello Nick,

this is most probably a bug in openjdk-10, see:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=897566
https://bugs.openjdk.java.net/browse/JDK-8202580

Please use openjdk-9 (sudo update-java-alternatives on Debian/Ubuntu).

Cheers and Best Regards,
Felix

[Nick]

OK. Thanks!

[Paul Hornsby]

I use freeeplane but I am not a Linux wiz (I am currently using Mint 19 Cinnamon). Would it be possible to get instructions for a layperson to implement the suggested fix prior to the bug being fixed in Java? Many thanks.

[Felix Natter]

hello Paul,

1. sudo apt-get install openjdk-9-jdk
2. $ sudo update-java-alternatives -l
   the output has lines like:
   java-1.8.0-openjdk-amd64 1081 /usr/lib/jvm/java-1.8.0-openjdk-amd64
3. pick one that is not openjdk 10
4. sudo update-java-alternatives -s java-1.8.0-openjdk-amd64
   (the key is in the first column)

Does that help you? If not, please provide the output of "sudo update-java-alternatives -l".

Cheers and Best Regards,
Felix

[Pavel Gurevich]

java-10-oracle cause the same behavior.

Ubuntu 18.04.

I forced update-java-alternatives again, will post if helps.