Comment 3 for bug 1415287

Vanilla Ubuntu 15.04 for me, and I have the same issue, mnemonics for Swing apps do not work (e.g. JConsole, JVisualVM, IntelliJ, etc.), while they work for SWT apps (e.g. Eclipse RCP apps).

The mnemonics (the underscore below the letter to press to make the menu popup to appear) are not displayed in the menubar, and trying to press the key combination by memory (e.g. Alt+F to open the File menu) does not work either, as was originally reported.

Removing jayatana and rebooting solves the issue of the mnemonics, but of course you lose the integration.

Also, it is very, *very* annoying that using jayatana prints out in the console "Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar".