show an error (with the filename) when loading a bogus (external) mapcss file

[marc_marc]

What steps will reproduce the problem?

1. load josm with a bogus mapcss (external) file

What is the expected result?

show an error message with the name of the file

What happens instead?

nothing, the error is only show in the reporting without the name of the file

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: 2023-05-12 14:55:43 +0200 (Fri, 12 May 2023)
Build-Date:2023-05-13 01:30:59
Revision:18728
Relative:URL: ^/trunk

Identification: JOSM/1.5 (18728 fr) Linux CentOS Linux release 7.9.2009 (Core)
Memory Usage: 395 MB / 1717 MB (160 MB allocated, but free)
Java version: 1.8.0_362-b08, Red Hat, Inc., OpenJDK 64-Bit Server VM
Look and Feel: javax.swing.plaf.metal.MetalLookAndFeel
Screen: :0.0 1600×900 (scaling 1.00×1.00)
Maximum Screen Size: 1600×900
Best cursor sizes: 16×16→16×16, 32×32→32×32
Environment variable LANG: fr_CH.utf8
System property file.encoding: UTF-8
System property sun.jnu.encoding: UTF-8
Locale info: fr_CH
Numbers with default locale: 1234567890 -> 1234567890
Desktop environment: GNOME-Classic:GNOME
Java package: java-1.8.0-openjdk:x86_64-1.8.0.362.b08
WebStart package: icedtea-web:x86_64-1.7.1
VM arguments: [-Dicedtea-web.bin.name=javaws.itweb, -Dicedtea-web.bin.location=/usr/bin/javaws.itweb]

Plugins:
+ ImproveOsm (238)
+ MapRoulette
+ apache-commons (36034)
+ apache-http (35924)
+ areaselector
+ austriaaddresshelper (master-4e80dc2e4261d321150187f4951684ad97342d5e)
+ cadastre-fr (36079)
+ conflation (0.6.11)
+ continuosDownload (105)
+ ejml (35924)
+ geotools (36068)
+ jackson (36034)
+ jaxb (35952)
+ jna (36005)
+ jts (36004)
+ log4j (36045)
+ mapwithai (794)
+ notesolver (0.5.0)
+ opendata (36079)
+ pt_assistant (2.1.15-19-g9aeec3c-SNAPSHOT)
+ reverter (36066)
+ scripting
+ todo (123)
+ utilsplugin2 (36079)
+ wikipedia (605)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/Leaftype&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Light_sources&zip=1
+ https://raw.github<user.name>content.com/Heiner-Sch/JOSM-preset-trees-Europe/master/JOSM-Preset_Trees.xml
+ https://josm.openstreetmap.de/josmfile?page=Presets/BENELUX&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/MountainbikeTrails&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/contact(socialnetworks_IMs)&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/geoimage.at&zip=1
+ https://github.com/Jungle-Bus/josm-presets/raw/gh-pages/jungle-stops/Preset_Jungle-Bus.zip
+ https://josm.openstreetmap.de/josmfile?page=Presets/MobilePhoneBaseStations&zip=1
+ https://raw.github<user.name>content.com/osmlab/name-suggestion-index/main/dist/presets/nsi-josm-presets.min.xml
+ https://josm.openstreetmap.de/josmfile?page=Presets/NewTags&zip=1
+ https://raw.github<user.name>content.com/species/josm-preset-wheelchair/master/sidewalks_kerbs.xml
+ https://osmtools.de/josm/steps.xml
+ https://josm.openstreetmap.de/josmfile?page=Presets/Trees&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/WifiHotspots&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Wikidata&zip=1
+ https://raw.github<user.name>content.com/osmlab/name-suggestion-index/main/dist/presets/nsi-josm-presets.min.xml

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

Validator rules:
+ https://github.com/Jungle-Bus/transport_mapcss/raw/gh-pages/transport.validator.zip
+ https://josm.openstreetmap.de/josmfile?page=Rules/KeepRight&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/FranceSpecificRules&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/SuspiciousSwimming_Pool&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/SourceObjectTag&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/QAToolInspiredValidations&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/IndoorRules&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/MissingOpeningHours&zip=1
+ https://raw.github<user.name>content.com/stefan-a-bauer/josm-validators/master/mtb.validator.mapcss
+ https://www.openrailwaymap.org/validator/openrailwaymap.validator.mapcss
+ https://josm.openstreetmap.de/josmfile?page=Rules/OSMLint&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/Pictures&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/MissingWeekdays&zip=1
+ https://raw.github<user.name>content.com/osmlu/josm-validator-luxembourg/master/Luxembourg-Specific-Rules.validator.mapcss
+ https://raw.github<user.name>content.com/OpenNauticalChart/josm/master/Seamark.validator.mapcss
+ https://josm.openstreetmap.de/josmfile?page=Rules/OsmoseValidations&zip=1
+ <josm.pref>/validator/osmose.zip
+ https://josm.openstreetmap.de/josmfile?page=Rules/FacebookWebsite&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/InvalidWebsiteProtocol&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/PublicTransportGtfs&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/ValidatingBuildingsInHOTTMProjects&zip=1
+ <josm.pref>/validator/Rules_Marcmarc.addon.validator.mapcss
+ <josm.pref>/validator/Rules_Marcmarc.depreciated-parking.validator.mapcss
+ <josm.pref>/validator/Rules_Marcmarc.depreciated.validator.mapcss
+ <josm.pref>/validator/Rules_Marcmarc.error.validator.mapcss
+ <josm.pref>/validator/Rules_Marcmarc.useless.validator.mapcss
+ <josm.pref>/validator/Rules_Marcmarc.depreciated-wooded.validator.mapcss

Last errors/warnings:
- 00014.484 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " "{" "{ "" at line 16, column 59.
- 00014.484 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " "{" "{ "" at line 21, column 60.
- 00014.518 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " ":" ": "" at line 78, column 10.
- 00014.519 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " ":" ": "" at line 86, column 10.
- 00014.532 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " ":" ": "" at line 94, column 10.
- 00014.532 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " ":" ": "" at line 102, column 10.
- 00014.555 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " "{" "{ "" at line 16, column 64.
- 00014.555 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " "{" "{ "" at line 23, column 71.
- 00014.570 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " "{" "{ "" at line 29, column 60.
- 00014.571 E: Skipping to the next rule, because of an error: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " "{" "{ "" at line 36, column 68.