id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
18798	NPE at GeoPropertyIndex$GPLevel.isInside - while adding a tag	taylor.smock	team	"[[span(style=color:#00C000,**WORKAROUND FOR JOSM 15937**)]]:
Use [[Help/Action/TaggingPresetSearch]] to add `junction=roundabout` or `highway=mini_roundabout`

If you can't open the Add tag window anymore without getting the bug message use the following workaround:

1. Enable Help/ExpertMode.
1. Go to the advanced preferences Help/Preferences/Advanced, search for `properties.remember-recently-added-tags` and set it to `false`.
1. Restart JOSM. Set it back to `true`.

----

First present in r15889.

Steps to reproduce:
1) Open a new layer
2) Add a node
3) Select the node
4) Open the add tag dialog
5) Enter `junction` into the `key` field
6) Start typing `roundabout` into the `value` field (it will crash on `r`)

~~Unless someone is already working on it, I'll try to get a patch attached as soon as possible.~~


EDIT: Relevant mapcss rule (from default MapCSS file):
{{{
#!mapcss
node:righthandtraffic[junction=roundabout] {
  icon-image: String<presets/vehicle/restriction/roundabout_right.svg>;
  icon_z17: String<presets/vehicle/restriction/roundabout_right.svg>;
}
}}}

{{{
Caused by: org.openstreetmap.josm.tools.JosmRuntimeException: java.lang.reflect.InvocationTargetException
	at org.openstreetmap.josm.gui.mappaint.mapcss.ConditionFactory$PseudoClassCondition.applies(ConditionFactory.java:847)
	at org.openstreetmap.josm.gui.mappaint.mapcss.Selector$AbstractSelector.matches(Selector.java:570)
	at org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSStyleSource.apply(MapCSSStyleSource.java:704)
	at org.openstreetmap.josm.gui.mappaint.ElemStyles.generateStyles(ElemStyles.java:384)
	at org.openstreetmap.josm.tools.ImageProvider.getTaggedPadded(ImageProvider.java:1586)
	at org.openstreetmap.josm.tools.ImageProvider.getPadded(ImageProvider.java:1546)
	at org.openstreetmap.josm.gui.dialogs.properties.TagEditHelper$AbstractTagsDialog.findIcon(TagEditHelper.java:701)
	... 2 more
Caused by: java.lang.reflect.InvocationTargetException
	at org.openstreetmap.josm.gui.mappaint.mapcss.ConditionFactory$PseudoClassCondition.applies(ConditionFactory.java:845)
	... 8 more
Caused by: java.lang.NullPointerException
	at org.openstreetmap.josm.tools.GeoPropertyIndex$GPLevel.isInside(GeoPropertyIndex.java:159)
	at org.openstreetmap.josm.tools.GeoPropertyIndex$GPLevel.get(GeoPropertyIndex.java:93)
	at org.openstreetmap.josm.tools.GeoPropertyIndex.get(GeoPropertyIndex.java:49)
	at org.openstreetmap.josm.tools.RightAndLefthandTraffic.isRightHandTraffic(RightAndLefthandTraffic.java:39)
	at org.openstreetmap.josm.gui.mappaint.mapcss.Functions.is_right_hand_traffic(Functions.java:1069)
	at org.openstreetmap.josm.gui.mappaint.mapcss.ConditionFactory$PseudoClasses.righthandtraffic(ConditionFactory.java:724)
	... 9 more
}}}"	defect	closed	blocker	20.03	Core		fixed	regression	simon04