I don't have any ETAs. Packaging, updating the many patches we carry,
and testing, all take time.

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https://bugs.launchpad.net/bugs/1971693

Title:
  Alt+Tab is broken for Java (AWT/Swing) apps in Wayland session

Status in mutter package in Ubuntu:
  Fix Committed

Bug description:
  When switching to a Java UI application using Alt+Tab, very often 
application's window is raised, but it doesn't get keyboard focus - it stays in 
the previous application, and that application continues to process keyboard 
events. When the problem occurs, hovering mouse over Java app's window gets the 
focus transferred to it.
  This problem only happens in Wayland session, not in X.Org session. It can be 
reproduced in Ubuntu 22.04, but not in 20.04.4 version.
  ---
  $ lsb_release -rd
  Description:  Ubuntu 22.04 LTS
  Release:      22.04
  ---
  The problem seems to affect all Java versions - reproduced for different 
OpenJDK builds (8, 11, 17, 18). It can also be observed for Java version 
provided by Ubuntu's 'default-jre' package (11.0.15+10-Ubuntu-0ubuntu0.22.04.1).

  Source code for a minimal Java application, for which the problem can be 
reproduced, is attached. Download the provided JTextFieldTest.java file, then 
from terminal prompt execute 'java JTextFieldTest.java' (Java 11 or later is 
required, command should be executed from the location of the downloaded file). 
App's window with a text field will be opened. Click with mouse on the terminal 
window, then press Alt+Tab and enter some text.
  Expected result: focus is switched to Java app's window, and text appears in 
its text field.
  Actual result: Java app's window is raised, but focus stays in terminal 
window, and typed text appears there.

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