Error when pressing Esc in Upload Dialog

[GerdP]

What steps will reproduce the problem?

1. Edit Data and press Ctrl+Shift+Up to upload the data
2. Type a comment in the popup window
3. Press Alt+Tab to switch to another Program Window and again to switch back to JOSM
4. Press Esc

What is the expected result?

Dialog disappears

What happens instead?

An error message like this pops up.

Please provide any additional information below. Attach a screenshot if possible.

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-10-01 23:59:36 +0200 (Mon, 01 Oct 2018)
Build-Date:2018-10-01 22:08:47
Revision:14289
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14289 en) Windows 10 64-Bit
OS Build number: Windows 10 Home 1803 (17134)
Memory Usage: 2151 MB / 5376 MB (1711 MB allocated, but free)
Java version: 1.8.0_162-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Plugins:
+ OpeningHoursEditor (34535)
+ apache-commons (34506)
+ buildings_tools (34572)
+ download_along (34503)
+ ejml (34389)
+ geotools (34513)
+ jts (34524)
+ measurement (34529)
+ merge-overlap (34664)
+ o5m (34405)
+ opendata (34675)
+ pbf (34576)
+ poly (34546)
+ reverter (34552)
+ utilsplugin2 (34506)

Last errors/warnings:
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- E: Handled by bug report queue: java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (17) of main
java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location
	at java.awt.Component.getLocationOnScreen_NoTreeLock(Unknown Source)
	at java.awt.Component.getLocationOnScreen(Unknown Source)
	at javax.swing.text.JTextComponent$InputMethodRequestsHandler.getTextLocation(Unknown Source)
	at sun.awt.im.InputMethodContext.getTextLocation(Unknown Source)
	at sun.awt.windows.WInputMethod$1.run(Unknown Source)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

[Don-vip]

Closed as duplicate of #15801.
Please update your version of Java.