If you check the current wollok stacktrace it doesn't show the source location description for stack whose main EObject are WMethod or WConstructor.
It does work for a WMessageSend.
Here is an example
wollok.lang.Exception: com/badlogic/gdx/backends/lwjgl/LwjglApplicationConfiguration
at [/wollok.wlk:564]
at wollok.lib.Position.drawCharacter(element) [/wollok.wlk:642]
at [/granjero.wlk:5]
If you check the current wollok stacktrace it doesn't show the source location description for stack whose main EObject are WMethod or WConstructor. It does work for a WMessageSend.
Here is an example
Notice the "at" at the top.