Use of JavaFX on Canton Community 0.27.0

Questions
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1

Hi Canton Team,

Went to run the Demo example from Canton Demo but it failed.

$ cd opt/canton-community-0.27.0
$ bash start-demo.command
Detected Java version "11.0.11" (major: 11).
Java FX is not installed. It will be fetched automatically.
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@ Loading library prism_es2 from resource failed: java.lang.UnsatisfiedLinkError: /home/qadmin/.openjfx/cache/12.0.2/libprism_es2.so: libGL.so.1: cannot open shared object file: No such file or directory
java.lang.UnsatisfiedLinkError: /home/qadmin/.openjfx/cache/12.0.2/libprism_es2.so: libGL.so.1: cannot open shared object file: No such file or directory
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At which point, Canton seems to be running but was hung, and have to break the process to get back to Canton, using Ctrl-D.

Two queries:

  • Is this the only requirement for JavaFX on this system, just to run that quality interactive demonstration?
  • If not, then should we be using OpenJFX or JavaFX instead of a vanilla JRE/JDK?

The demonstration is viewable using the Demo Video

AFAIK, the only reference to JavaFX in the entire docs is the Demo.

2

Hi @quidagis,

Is this the only requirement for JavaFX on this system, just to run that quality interactive demonstration?

Correct. JavaFX is only a requirement to run the demonstration. Canton itself has no dependency on JavaFX and is fully intended to run in headless environments with no UI.

1 Like
3

Thank you for explaining that :+1:t2: