hi, with java is OK . I downloaded all together (jdk and NetBeans) from the Oracle site... :
---------- [angelo_dev@localhost ~]$ *java -version* *openjdk version "1.8.0_31"OpenJDK Runtime Environment (build 1.8.0_31-b13)OpenJDK 64-Bit Server VM (build 25.31-b07, mixed mode)* [angelo_dev@localhost ~]$ *javac -version* *javac 1.8.0_31* ---------- After I posted the previous message I learned more , and now I am about sure that the problem come from the graphic environment of Linux... After I Installed Fedora 27 I got to use a Wayland session of gnome, instead the usual X11 session : if I do : *loginctl show session 2 -p Type,* I get *Type=wayland* instead that *Type=x11* (that is the value I get on computer where is Fedora 21) Wyland is not good environment for running the graphical program that is used to install netBeans... (the .sh script) So I am looking now how I can return to session X11 inside Gnome... On Sat, Apr 21, 2018 at 12:19 AM, Samuel Sieb <sam...@sieb.net> wrote: > On 04/20/2018 06:22 AM, Angelo Moreschini wrote: > >> [root@localhost Downloads]#*./netbeans-8.2-linux.sh < >> http://netbeans-8.2-linux.sh>* >> Configuring the installer... >> Searching for JVM on the system... >> Extracting installation data... >> *Running the installer wizard...* >> *Can`t initialize UI >> Running in headless mode* >> >> *Exception: java.awt.HeadlessException thrown from the >> UncaughtExceptionHandler in thread "main"* >> -------------------- >> This is a problem about the java environment ? >> it can be also a problem with the graphical environment of fedora ... (?) >> > > An application running as root can't access the display when using Wayland. > > _______________________________________________ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org >
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