Re: New WEKA release: 3.8.6/3.9.6

You can ignore those. The first two are about system environment variables
that you can optionally use to specify additional parameters (JAVA_OPTS) or
Java classes (CLASSPATH) for the Java virtual machine. The other warnings
are about a method (setSecurityManager) that we use to make sure that WEKA
libraries (primarily, the tigerJython library) do not accidentally close
down the entire WEKA application. Hopefully, the JDK developers will
provide an alternative solution in future JVMs. They are aware of this
problem, which does not just affect WEKA. If they do not address this, we
may have to drop the tigerJython library in future releases or find an
alternative way to use it.

Cheers,
Eibe

On Tue, 8 Feb 2022 at 21:08, Shu-Ju Tu <[email protected]> wrote:

> Hello I am excited to download the new 3.8.6.
> My computer received the following warning message texts.
> Should I do something to correct these warnings?
> Or I can just ignore these warnings?
>
> --- Begin
> Environment variable 'JAVA_OPTS' does not exist!
> Environment variable 'CLASSPATH' does not exist!
> WARNING: A terminally deprecated method in java.lang.System has been called
> WARNING: System::setSecurityManager has been called by
> weka.gui.GUIChooserApp (file:/C:/Program%20Files/Weka-3-8-6/weka.jar)
> WARNING: Please consider reporting this to the maintainers of
> weka.gui.GUIChooserApp
> WARNING: System::setSecurityManager will be removed in a future release
> Checking for new packages...
> Refresh in progress. Please wait...
> [DefaultPackageManager] downloaded 2366 KB
> --- End
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