Energia IDE does not open GUI in fedora 26

[JasonSmitR]

Do not use GitHub issues for project related questions.

After upgrading to fedora 26 the 1.6.10E18 IDE crashes. The only output is

Picked up JAVA_TOOL_OPTIONS: java.lang.Error: Cannot load com.sun.java.swing.plaf.gtk.GTKLookAndFeel at javax.swing.UIManager.initializeDefaultLAF(UIManager.java:1351) at javax.swing.UIManager.initialize(UIManager.java:1459) at javax.swing.UIManager.maybeInitialize(UIManager.java:1426) at javax.swing.UIManager.getLookAndFeel(UIManager.java:492) at processing.app.linux.GTKLookAndFeelFixer.installGtkPopupBugWorkaround(GTKLookAndFeelFixer.java:79) at processing.app.linux.Platform.setLookAndFeel(Platform.java:40) at processing.app.Base.guardedMain(Base.java:214) at processing.app.Base.main(Base.java:136)

Describe the expected results.

The IDE should appear after the logo but it does not.

Describe the actual results.

Nothing at all happens the process just exits

List the steps to reproduce the problem.

`Run energia on the latest fedora. Not sure if this is related but a similar problem occurred with Arduino (Which energia is based upon?) this was fixed with https://bugzilla.redhat.com/show_bug.cgi?id=1444550

[MatteoRagni]

As for now, I solved by modifying the file $(which energia), commenting line 28 (the line that sets JAVA_OPTIONS) and by launching with:

_JAVA_OPTIONS="" energia

I'm on Arch Linux by the way...

[JasonSmitR]

Thanks @MatteoRagni that works like a charm

[orfloresti]

Thanks, @MatteoRagni. It works for me too.

[lorforlinux]

try this technique https://youtu.be/7swyUs6QzPo

[FernandoFong]

Thank you @MatteoRagni, you were right!

[cyphunk]

This issue also appears on latest Archlinux:

java.lang.Error: Cannot load com.sun.java.swing.plaf.gtk.GTKLookAndFeel

To resolve, similar to @MatteoRagni suggestion, in the energia script change:

JAVA_OPTIONS=("-DAPP_DIR=$APPDIR" "-Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel")

to:

JAVA_OPTIONS=("-DAPP_DIR=$APPDIR" )