#1281 Java shows a warning (Ubuntu, OpenJDK)

[Jurgen Gaeremyn]

Hi, running Freemind 1.1.0 Beta2 here under Ubuntu 18.04 64 bits.

When launching Freemind, I'm getting this warning:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by freemind.main.FreeMindStarter (file:/~/Freemind/lib/freemind.jar) to field sun.awt.X11.XToolkit.awtAppClassName
WARNING: Please consider reporting this to the maintainers of freemind.main.FreeMindStarter
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Not sure it's a big issue, but it might be relevant for the future.

FYI:
$ java --version
openjdk 10.0.1 2018-04-17
OpenJDK Runtime Environment (build 10.0.1+10-Ubuntu-3ubuntu1)
OpenJDK 64-Bit Server VM (build 10.0.1+10-Ubuntu-3ubuntu1, mixed mode)

[Duncan Lithgow]

You might consider looking at Freeplane, which was forked from Freemind. Maybe it has better support? It's certainly more likely to see improvements to the code. Freemind is barely an active project. There has not been a stablerelease since April 2014.

[Pat Callahan]

Same issue in Ubuntu 20.04. Installed Freeplane, which also exhibits this message. as
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.vmplugin.v7.Java7$1 (bundle://3) to constructor java.lang.invoke.MethodHandles$Lookup(java.lang.Class,int)
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.vmplugin.v7.Java7$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

[Pat Callahan]

The warning appears in the freeplane installed via apt-get install freeplane. It is freeplane 1.7.0. The current version of Freeplane does not show the warning.