Mir conflict with Java (IllegalArgumentException)

[Don-vip]

Upstream bug for:
- https://josm.openstreetmap.de/ticket/9184
- https://josm.openstreetmap.de/ticket/9209
- https://josm.openstreetmap.de/ticket/9768

Several users complain of a Java bug only when Mir is installed. The following stacktrace occurs:

java.lang.reflect.InvocationTargetException
 at java.awt.EventQueue.invokeAndWait(EventQueue.java:1272)
 at java.awt.EventQueue.invokeAndWait(EventQueue.java:1247)
 at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:87)
 at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:150)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
 at java.util.concurrent.FutureTask.run(FutureTask.java:262)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
 at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.IllegalArgumentException: Width (0) and height (0) must be non-zero
 at java.awt.image.ReplicateScaleFilter.<init>(ReplicateScaleFilter.java:102)
 at java.awt.Image.getScaledInstance(Image.java:173)
 at sun.awt.CustomCursor.<init>(CustomCursor.java:69)
 at sun.awt.X11CustomCursor.<init>(X11CustomCursor.java:43)
 at sun.awt.X11.XCustomCursor.<init>(XCustomCursor.java:42)
 at sun.awt.X11.XToolkit.createCustomCursor(XToolkit.java:1133)

Removing Mir resolves the issue.

FYI as I don't know if it's a Java issue or a Mir issue I have reported a bug to Oracle, here (not visible yet):
https://bugs.openjdk.java.net/browse/JI-9010791

[Daniel van Vugt (vanvugt)]

The exact details of the exception may vary between Java versions, but this is already logged as bug 1232471.