Unexpected exception adding point by coordinates

[Silva1989]

What steps will reproduce the problem?

1. More Tools, selecting Add point by coordinates
2. The requested window opens, the coordinate introduction box doesn't show
3. Clicking okay, the unexpected exception shows up

What is the expected result?

What happens instead?

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: 2019-03-03 00:16:03 +0100 (Sun, 03 Mar 2019)
Build-Date:2019-03-02 23:16:53
Revision:14824
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14824 pt) Windows 10 64-Bit
OS Build number: Windows 10 Enterprise 1903 (18351)
Memory Usage: 234 MB / 1339 MB (52 MB allocated, but free)
Java version: 1.8.0_201-b09, Oracle Corporation, Java HotSpot(TM) Client VM
Screen: \Display0 1920x1080, \Display1 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Plugins:
+ apache-commons (34506)
+ continuosDownload (82)
+ ejml (34389)
+ geotools (34513)
+ jaxb (34678)
+ jts (34524)
+ opendata (34899)
+ utilsplugin2 (34867)

Last errors/warnings:
- W: Unable to request certificate of https://grca.nat.gov.tw
- W: Not a single layer for the name 'SRIT FAI54': []
- W: Not a single layer for the name 'SRIT FAI56': []
- W: Not a single layer for the name 'SRIT FAI57': []
- W: Not a single layer for the name 'SRIT FAI55': []
- W: Not a single layer for the name 'SRIT FAI58': []
- W: No configuration settings found.  Using hardcoded default values for all pools.
- E: Handled by bug report queue: java.util.NoSuchElementException


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (15) of main
java.util.NoSuchElementException
	at java.util.LinkedList$ListItr.next(Unknown Source)
	at org.openstreetmap.josm.command.SequenceCommand.<init>(SequenceCommand.java:56)
	at org.openstreetmap.josm.command.SequenceCommand.<init>(SequenceCommand.java:65)
	at org.openstreetmap.josm.plugins.utilsplugin2.latlon.LatLonAction.actionPerformed(LatLonAction.java:85)
	at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at javax.swing.AbstractButton.doClick(Unknown Source)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
	at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
	at java.awt.Component.processMouseEvent(Unknown Source)
	at javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(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)

[GerdP]

I can reproduce this when I use the mouse to shrink the size of the dialog so that the input field is not shown and pressing Cancel. Next time when I use LatLon Tool (Shift+Ctrl+L) the dialog opens with the last used size and one has to enlarge the dialog again so that the input field is shown.

[Don-vip]

Fixed in [o34915:34916].

[GerdP]

I've noticed that the core action Shift+D doesn't show this problem. I wonder why we maintain both versions of LatLonDialog?