Attempt to add WMS layer throws NPE

[galen8183]

Attempt to load any WMS layer from Region of Waterloo WMS service throws NPE
Example WMS server: ​https://gis.regionofwaterloo.ca/waimagery/rest/services/Imagery_2018/ImageServer
This same error is thrown with all imagery layers I tested from this source, listed here: ​https://rowopendata-rmw.opendata.arcgis.com/datasets/RMW::wms-imagery-connections/explore (note all of these table entries seem to be invalid, they're missing /rest/ in their paths)
The same imagery layer(s) load without issue in QGIS and ArcGIS online.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2025-02-03 20:59:54 +0100 (Mon, 03 Feb 2025)
Revision:19307
Build-Date:2025-02-04 02:30:32
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (19307 en) Linux Void Linux
Memory Usage: 1220 MB / 3972 MB (401 MB allocated, but free)
Java version: 21.0.6+1-void-r1, Void, OpenJDK 64-Bit Server VM
Look and Feel: com.formdev.flatlaf.FlatDarculaLaf
Screen: :0.0 1920x1080x[Multi depth]@60Hz (scaling 1.00×1.00) :0.1 1920x1080x[Multi depth]@[Unknown refresh rate] (scaling 1.00×1.00)
Maximum Screen Size: 1920×1080
Best cursor sizes: 16×16→16×16, 32×32→32×32
Environment variable LANG: en_CA.UTF-8
System property file.encoding: UTF-8
System property sun.jnu.encoding: UTF-8
Locale info: en_CA
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [--module-path=/usr/local/lib/javafx-sdk-23.0.1/lib, --add-modules=ALL-MODULE-PATH, --add-exports=java.base/sun.security.action=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.spi=ALL-UNNAMED, -Djava.util.prefs.userRoot=${HOME}/.local/share/java]
Program arguments: [<josm.userdata>/session-default.joz]
Dataset consistency test: No problems found

Plugins:
+ DirectDownload (36379)
+ FastDraw (36379)
+ HouseNumberTaggingTool (36379)
+ KartaView (545)
+ Mapillary (1792)
+ MicrosoftStreetside (36379)
+ alignways (36379)
+ apache-commons (36379)
+ buildings_tools (36382)
+ changeset-viewer (1738240062)
+ conflation (259)
+ contourmerge (v0.2.2)
+ ejml (36379)
+ flatlaf (36379)
+ geotools (36379)
+ gridify (1738594923)
+ imagery_offset_db (36379)
+ intersection (0.0.7)
+ jackson (36379)
+ javafx (36379)
+ jaxb (36379)
+ jogl (1.2.3)
+ jts (36379)
+ opendata (36379)
+ pbf (36379)
+ pmtiles (36379)
+ pt_assistant (646)
+ reverter (36379)
+ routing2 (8)
+ sidewalks (71)
+ turnrestrictions (36379)
+ undelete (36379)
+ utilsplugin2 (36379)
+ wikipedia (428)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/LaneAttributes&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/MappingAccessibility&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/PublicTransportGtfs&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/PublicTransportOneClick&zip=1
+ https://raw.githubusercontent.com/yopaseopor/traffic_signs_preset_JOSM/master/CA.zip
+ https://josm.openstreetmap.de/josmfile?page=Presets/Wikidata&zip=1
+ <josm.pref>/presets/general.xml

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransport&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Modified&zip=1
- https://raw.githubusercontent.com/species/josm-preset-traffic_sign_direction/master/direction.mapcss
+ https://josm.openstreetmap.de/josmfile?page=Styles/SidewalksAndFootways&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/ParkingLanes&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/light_source&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/Direction&zip=1

Validator rules:
+ https://josm.openstreetmap.de/josmfile?page=Rules/KeepRight&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/PublicTransportGtfs&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/QAToolInspiredValidations&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/InvalidWebsiteProtocol&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/Runways&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/DuplicateAttributes&zip=1

Last errors/warnings:
- 08367.911 W: java.io.IOException: Attribution is not loaded yet
- 08367.911 W: java.io.IOException: Attribution is not loaded yet
- 08368.495 E: Handled by bug report queue: java.lang.NullPointerException: Cannot invoke "java.lang.CharSequence.toString()" because "replacement" is null
- 12334.156 W: java.lang.UnsupportedOperationException: The BROWSE action is not supported on the current platform!
- 12619.556 W: java.lang.UnsupportedOperationException: The BROWSE action is not supported on the current platform!
- 24079.458 E: null is NOT valid
- 24079.459 E: Reason: cvc-elt.1.a: Cannot find the declaration of element 'PAMDataset'.
- 24079.486 E: null is NOT valid
- 24079.486 E: Reason: cvc-elt.1.a: Cannot find the declaration of element 'metadata'.
- 25341.284 E: Handled by bug report queue: java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because the return value of "org.openstreetmap.gui.jmapviewer.interfaces.TileSource.getId()" is null



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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (35) of main
java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because the return value of "org.openstreetmap.gui.jmapviewer.interfaces.TileSource.getId()" is null
	at org.openstreetmap.josm.gui.bbox.SourceButton.generatePopupMenu(SourceButton.java:84)
	at org.openstreetmap.josm.gui.bbox.SourceButton.setSources(SourceButton.java:110)
	at org.openstreetmap.josm.gui.bbox.SlippyMapBBoxChooser.refreshTileSources(SlippyMapBBoxChooser.java:375)
	at org.openstreetmap.josm.gui.download.SlippyMapChooser.refreshTileSources(SlippyMapChooser.java:87)
	at org.openstreetmap.josm.gui.download.DownloadDialog.refreshTileSources(DownloadDialog.java:430)
	at org.openstreetmap.josm.gui.preferences.imagery.ImageryPreference.ok(ImageryPreference.java:142)
	at org.openstreetmap.josm.gui.preferences.PreferenceTabbedPane$PluginDownloadAfterTask.run(PreferenceTabbedPane.java:104)
	at org.openstreetmap.josm.gui.preferences.PreferenceTabbedPane.savePreferences(PreferenceTabbedPane.java:455)
	at org.openstreetmap.josm.gui.preferences.PreferenceDialog$OKAction.actionPerformed(PreferenceDialog.java:217)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2314)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:407)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6621)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3398)
	at java.desktop/java.awt.Component.processEvent(Component.java:6386)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4996)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4828)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4948)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4575)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4516)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4828)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:775)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:747)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:744)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
	at java.desktop/java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:191)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:236)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:234)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:319)
	at java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:234)
	at java.desktop/java.awt.Dialog.show(Dialog.java:1079)
	at java.desktop/java.awt.Component.show(Component.java:1728)
	at java.desktop/java.awt.Component.setVisible(Component.java:1675)
	at java.desktop/java.awt.Window.setVisible(Window.java:1036)
	at java.desktop/java.awt.Dialog.setVisible(Dialog.java:1015)
	at org.openstreetmap.josm.gui.preferences.PreferenceDialog.setVisible(PreferenceDialog.java:145)
	at org.openstreetmap.josm.actions.PreferencesAction.run(PreferencesAction.java:119)
	at org.openstreetmap.josm.actions.PreferencesAction.actionPerformed(PreferencesAction.java:104)
	at java.desktop/javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1810)
	at java.desktop/javax.swing.JComponent.processKeyBinding(JComponent.java:2956)
	at java.desktop/javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:309)
	at java.desktop/javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:264)
	at java.desktop/javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:3049)
	at java.desktop/javax.swing.JComponent.processKeyBindings(JComponent.java:3041)
	at java.desktop/javax.swing.JComponent.processKeyEvent(JComponent.java:2918)
	at java.desktop/java.awt.Component.processEvent(Component.java:6398)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4996)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4828)
	at java.desktop/java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1952)
	at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:883)
	at java.desktop/java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1146)
	at java.desktop/java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:1020)
	at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:848)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4877)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4828)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:775)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:747)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:744)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)