id summary reporter owner description type status priority milestone component version resolution keywords cc 24658 Opening of a Geojson file fails with ClassCastException viliam.durina@… team "==== What steps will reproduce the problem? 1. Open the attached geojson file ==== Please provide any additional information below. Attach a screenshot if possible. {{{ Relative:URL: ^/trunk Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b Last:Changed Date: 2026-01-31 13:00:34 +0100 (Sat, 31 Jan 2026) Revision:19481 Build-Date:2026-02-01 02:30:45 URL:https://josm.openstreetmap.de/svn/trunk Identification: JOSM/1.5 (19481 en_GB) Linux Ubuntu 24.04.4 LTS Memory Usage: 460 MB / 7888 MB (184 MB allocated, but free) Java version: 23.0.2+7-58, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM Look and Feel: javax.swing.plaf.metal.MetalLookAndFeel Screen: :0.0 3840x2160x[Multi depth]@60Hz (scaling 2.00×2.00) Maximum Screen Size: 3840×2160 Best cursor sizes: 16×16→16×16, 32×32→32×32 Environment variable LANG: en_GB.UTF-8 System property file.encoding: UTF-8 System property sun.jnu.encoding: UTF-8 Locale info: en_GB Numbers with default locale: 1234567890 -> 1234567890 Desktop environment: ubuntu:GNOME libcommons-logging-java: libcommons-logging-java:all-1.3.0-1ubuntu1 fonts-noto: fonts-noto:- VM arguments: [-Dsun.java2d.uiScale=2, --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] Dataset consistency test: No problems found Plugins: + buildings_tools (36474) + conflation (277) + jts (36474) + utilsplugin2 (36474) Last errors/warnings: - 03570.891 E: Handled by bug report queue: java.lang.ClassCastException: class org.eclipse.parsson.JsonObjectBuilderImpl$JsonObjectImpl cannot be cast to class jakarta.json.JsonArray (org.eclipse.parsson.JsonObjectBuilderImpl$JsonObjectImpl and jakarta.json.JsonArray are in unnamed module of loader 'app') === REPORTED CRASH DATA === BugReportExceptionHandler#handleException: No data collected. Warning issued by: BugReportExceptionHandler#handleException === STACK TRACE === Thread: main-worker-0 (46) of main java.lang.ClassCastException: class org.eclipse.parsson.JsonObjectBuilderImpl$JsonObjectImpl cannot be cast to class jakarta.json.JsonArray (org.eclipse.parsson.JsonObjectBuilderImpl$JsonObjectImpl and jakarta.json.JsonArray are in unnamed module of loader 'app') at org.eclipse.parsson.JsonObjectBuilderImpl$JsonObjectImpl.getJsonArray(JsonObjectBuilderImpl.java:229) at org.openstreetmap.josm.io.GeoJSONReader.parseGeometry(GeoJSONReader.java:220) at org.openstreetmap.josm.io.GeoJSONReader.parseFeature(GeoJSONReader.java:164) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:215) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:215) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:197) at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1939) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:570) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:560) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:265) at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:727) at org.openstreetmap.josm.io.GeoJSONReader.parseFeatureCollection(GeoJSONReader.java:149) at org.openstreetmap.josm.io.GeoJSONReader.parseRoot(GeoJSONReader.java:100) at org.openstreetmap.josm.io.GeoJSONReader.parse(GeoJSONReader.java:87) at org.openstreetmap.josm.io.GeoJSONReader.doParseDataSet(GeoJSONReader.java:471) at org.openstreetmap.josm.io.GeoJSONReader.parseDataSet(GeoJSONReader.java:536) at org.openstreetmap.josm.gui.io.importexport.GeoJSONImporter.parseDataSet(GeoJSONImporter.java:36) at org.openstreetmap.josm.gui.io.importexport.OsmImporter.loadLayer(OsmImporter.java:121) at org.openstreetmap.josm.gui.io.importexport.OsmImporter.importData(OsmImporter.java:97) at org.openstreetmap.josm.gui.io.importexport.OsmImporter.importData(OsmImporter.java:82) at org.openstreetmap.josm.gui.io.importexport.FileImporter.importDataHandleExceptions(FileImporter.java:103) at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.importData(OpenFileAction.java:426) at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.realRun(OpenFileAction.java:354) at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:94) at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:142) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) at java.base/java.lang.Thread.run(Thread.java:1575) }}} " defect new normal 26.05 Core latest template_report