Plank creates a separate icon for apps on Isis

[Rubén Reina]

I've made my own .desktop file for Android Studio and PHPStorm and put it in /usr/share/applications/ folder. When I open either one another icon appear in plank.

This is on Isis unstable, this didn't happen to me in Luna stable.

Here is attached a screenshot with Plank and the .desktop file.

[Rico Tzschichholz (ricotz)]

Please mention the used libbamf and plank versions for both cases. Check if your system is updated as well.
Also attach the (not-)/working custom desktop-file.

[Rubén Reina (ruben-reina-dev)]

- libamf3-2 0.5.1+14.04.20140409-0ubuntu1+elementary2~ubuntu14.04.1 -
- plank:i386 0.5.0+bzr1015-0elementary1~ubuntu14.04.1

My system is updated and here are attached not working .desktop files.

[Rico Tzschichholz (ricotz)]

This can probably be fixed by adding the proper StartupWMClass reference to support BAMF to find the correct application for an appearing window. In this case add "StartupWMClass=jetbrains-phpstorm" to phpstorm.desktop and "StartupWMClass=jetbrains-android-studio" to android_studio.desktop.

[Rubén Reina (ruben-reina-dev)]

Fixed. Thank you so much, it appear to a problem with Java apps.

[Valentin (talbot-desire)]

Thank you, Rico!
I resolve similar bug with Intellij Idea icon.
I just add StartupWMClass=jetbrains-idea in my idea.desktop file.

But i have one question, howto find out StartupWMClass of java app?

[Salvatore.tip (salvatore-tip)]

To find the correct StartupWMClass, you must launch the app then write in terminal:

xprop WM_CLASS

and click the cursor on the target window

[Jim Klein (jklein)]

Doesn't support java applications as well as one would like, as they typically have multiple WM classes, at least with the Oracle JREs. For example, a typical java app will have a WM class that looks like this:

WM_CLASS(STRING) = "sun-awt-X11-XFramePeer", "virtuallab-VirtualMicroscope"

If you set the StartupWMClass in the .desktop file to virtuallab-VirtualMicroscope it doesn't work and app icons disappear in Plank almost immediately after they appear. If you set StartupWMClass to sun-awt-X11-XFramePeer you get two proper icons, with one that disappears after 10 seconds or so. BAMF also gets confused for other applications, showing a cached icon from another app. Not a crisis, but would be nice if it was a bit cleaner and supported the second entry.