Crashes on upload

[Glassman]

What steps will reproduce the problem?

1. make edit
2. attempt to upload changeset

What is the expected result?

Changeset uploads

What happens instead?

Received bug report

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: 2019-01-24 22:50:30 +0100 (Thu, 24 Jan 2019)
Build-Date:2019-01-25 02:33:53
Revision:14731
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14731 en) Linux Fedora release 29 (Twenty Nine)
Memory Usage: 2124 MB / 7282 MB (1814 MB allocated, but free)
Java version: 1.8.0_192-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: :0.0 3840x1080, :0.1 1920x1080
Maximum Screen Size: 3840x1080
VM arguments: [-Djosm.home=<josm.pref>]
Dataset consistency test: No problems found

Plugins:
+ EasyPresets (1537621333)
+ Mapillary (v1.5.17)
+ OpeningHoursEditor (34535)
+ apache-commons (34506)
+ apache-http (34632)
+ buildings_tools (34850)
+ ejml (34389)
+ geochat (34512)
+ geojson (87)
+ geotools (34513)
+ jaxb (34506)
+ jna (34633)
+ jts (34524)
+ measurement (34529)
+ opendata (34805)
+ reltoolbox (34788)
+ reverter (34552)
+ tageditor (34560)
+ turnlanes-tagging (272)
+ turnrestrictions (34643)
+ utilsplugin2 (34844)

Map paint styles:
+ https://josm.openstreetmap.de/josmfile?page=Styles/Sidewalks&zip=1

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- W: Cannot start IPv4 remotecontrol https server on port 8112: Keystore was tampered with, or password was incorrect
- W: Cannot start IPv6 remotecontrol https server on port 8112: Keystore was tampered with, or password was incorrect
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- E: Handled by bug report queue: java.lang.NullPointerException


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (17) of main
java.lang.NullPointerException
	at org.openstreetmap.josm.data.validation.tests.TagChecker.tryGuess(TagChecker.java:635)
	at org.openstreetmap.josm.data.validation.tests.TagChecker.checkSingleTagComplex(TagChecker.java:594)
	at org.openstreetmap.josm.data.validation.tests.TagChecker.check(TagChecker.java:492)
	at org.openstreetmap.josm.data.validation.Test$TagTest.visit(Test.java:133)
	at org.openstreetmap.josm.data.osm.Way.accept(Way.java:183)
	at org.openstreetmap.josm.data.validation.Test.visit(Test.java:213)
	at org.openstreetmap.josm.data.validation.tests.TagChecker.visit(TagChecker.java:758)
	at org.openstreetmap.josm.actions.upload.ValidateUploadHook.checkUpload(ValidateUploadHook.java:64)
	at org.openstreetmap.josm.actions.UploadAction.checkPreUploadConditions(UploadAction.java:218)
	at org.openstreetmap.josm.actions.UploadAction.uploadData(UploadAction.java:242)
	at org.openstreetmap.josm.actions.UploadAction.actionPerformed(UploadAction.java:303)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
	at java.awt.Component.processMouseEvent(Component.java:6539)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
	at java.awt.Component.processEvent(Component.java:6304)
	at java.awt.Container.processEvent(Container.java:2239)
	at java.awt.Component.dispatchEventImpl(Component.java:4889)
	at java.awt.Container.dispatchEventImpl(Container.java:2297)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
	at java.awt.Container.dispatchEventImpl(Container.java:2283)
	at java.awt.Window.dispatchEventImpl(Window.java:2746)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
	at java.awt.EventQueue$4.run(EventQueue.java:733)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

[GerdP]

Closed as duplicate of #17246.