id summary reporter owner description type status priority milestone component version resolution keywords cc 24888 Trying to download MapRoulette tasks results in unexpected exception. anonymous taylor.smock "==== What steps will reproduce the problem? 1. Download MapRoulette plug-in. 2. In the Download window, check the box to download MapRoulette tasks along with selected map data of only a few streets (that I know has available MapRoulette tasks). 3. Notices for unexpected exceptions keep popping up as it tries to download. 4. The notices only stop popping up if I suppress them for this session. After that, JOSM goes blank. ==== What is the expected result? It successfully downloads tasks for me to do in JOSM instead of in ID. ==== What happens instead? JOSM becomes blank, solid white, and I have to close the program. ==== Please provide any additional information below. Attach a screenshot if possible. {{{ Relative:URL: ^/trunk Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b Last:Changed Date: 2026-08-11 15:36:21 +0200 (Tue, 11 Aug 2026) Revision:19613 Build-Date:2026-08-12 01:30:51 URL:https://josm.openstreetmap.de/svn/trunk Identification: JOSM/1.5 (19613 en) Windows 10 64-Bit OS Build number: Windows 10 Pro 22H2 (19045) Memory Usage: 348 MB / 8176 MB (100 MB allocated, but free) Java version: 25.0.3+9-LTS, Eclipse Adoptium, OpenJDK 64-Bit Server VM Look and Feel: javax.swing.plaf.nimbus.NimbusLookAndFeel Screen: \Display0 1920x1080x32bpp@144Hz (scaling 1.00×1.00) \Display1 1920x1080x32bpp@59Hz (scaling 1.00×1.00) Maximum Screen Size: 1920×1080 Best cursor sizes: 16×16→32×32, 32×32→32×32 System property file.encoding: UTF-8 System property sun.jnu.encoding: Cp1252 Locale info: en_US Numbers with default locale: 1234567890 -> 1234567890 Dataset consistency test: No problems found Plugins: + MapRoulette (87) Last errors/warnings: - 00000.317 W: extended font config - overriding 'filename.Malgun_Gothic=malgun.ttf' with 'MALGUN.TTF' - 00000.318 W: extended font config - overriding 'filename.Myanmar_Text=mmrtext.ttf' with 'MMRTEXT.TTF' - 00000.318 W: extended font config - overriding 'filename.Mongolian_Baiti=monbaiti.ttf' with 'MONBAITI.TTF' - 00071.493 E: Handled by bug report queue: java.lang.NullPointerException: Cannot invoke ""jakarta.json.JsonValue.toString()"" because the return value of ""jakarta.json.JsonObject.get(Object)"" is null - 00071.546 E: Handled by bug report queue: java.lang.reflect.InvocationTargetException. Cause: java.lang.NullPointerException: Cannot invoke ""jakarta.json.JsonValue.toString()"" because the return value of ""jakarta.json.JsonObject.get(Object)"" is null === REPORTED CRASH DATA === BugReportExceptionHandler#handleException: No data collected. Warning issued by: BugReportExceptionHandler#handleException === STACK TRACE === Thread: AWT-EventQueue-0 (43) of main java.lang.NullPointerException: Cannot invoke ""jakarta.json.JsonValue.toString()"" because the return value of ""jakarta.json.JsonObject.get(Object)"" is null at org.openstreetmap.josm.plugins.maproulette.api.ChallengeAPI.parseChallengePriority(ChallengeAPI.java:321) at org.openstreetmap.josm.plugins.maproulette.api.ChallengeAPI.parseChallenge(ChallengeAPI.java:279) at org.openstreetmap.josm.plugins.maproulette.api.ChallengeAPI.challenge(ChallengeAPI.java:233) at org.openstreetmap.josm.plugins.maproulette.api_caching.ChallengeCache.challenge(ChallengeCache.java:57) at org.openstreetmap.josm.plugins.maproulette.api_caching.ChallengeCache.isHidden(ChallengeCache.java:36) at org.openstreetmap.josm.plugins.maproulette.api_caching.TaskCache.isHidden(TaskCache.java:50) at org.openstreetmap.josm.plugins.maproulette.gui.layer.MapRouletteClusteredPointLayer.paint(MapRouletteClusteredPointLayer.java:221) at org.openstreetmap.josm.gui.layer.AbstractMapViewPaintable$CompatibilityModeLayerPainter.paint(AbstractMapViewPaintable.java:27) at org.openstreetmap.josm.gui.MapView.paintLayer(MapView.java:487) at org.openstreetmap.josm.gui.MapView.drawMapContent(MapView.java:585) at org.openstreetmap.josm.gui.MapView.paint(MapView.java:509) at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:961) at java.desktop/javax.swing.JComponent.paint(JComponent.java:1137) at java.desktop/javax.swing.JComponent.paintToOffscreen(JComponent.java:5324) at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBufferedImpl(RepaintManager.java:1599) at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1574) at java.desktop/javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1512) at java.desktop/javax.swing.RepaintManager.paint(RepaintManager.java:1279) at java.desktop/javax.swing.JComponent._paintImmediately(JComponent.java:5272) at java.desktop/javax.swing.JComponent.paintImmediately(JComponent.java:5082) at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:825) at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:788) at java.desktop/javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738) at java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1840) at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:323) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:723) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:702) 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$2.run(WaitDispatchSupport.java:187) at java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:229) at java.desktop/java.awt.Dialog.show(Dialog.java:1051) at java.desktop/java.awt.Component.show(Component.java:1690) at java.desktop/java.awt.Component.setVisible(Component.java:1637) at java.desktop/java.awt.Window.setVisible(Window.java:982) at java.desktop/java.awt.Dialog.setVisible(Dialog.java:989) at org.openstreetmap.josm.gui.progress.swing.PleaseWaitProgressMonitor.lambda$doBeginTask$3(PleaseWaitProgressMonitor.java:255) at org.openstreetmap.josm.gui.progress.swing.PleaseWaitProgressMonitor.lambda$doInEDT$0(PleaseWaitProgressMonitor.java:113) at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:323) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:723) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:702) 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) }}} " defect new normal Plugin MapRoulette latest template_report