.zip file in session file isn't reopened

[pyrog]

What steps will reproduce the problem?

1. Add a zip file to a new layer (here it contain a shapefile)
2. Save the session
3. Close JOSM

4. Reopen JOSM
5. Open the session file

What is the expected result?

Objects contained in the zip file should be loaded.

What happens instead?

JOSM display No data found in file '/Users/pyrog/Downloads/PDIPR ECLA.zip'

Please provide any additional information below. Attach a screenshot if possible.

Sample session file:

<?xml version="1.0" encoding="utf-8"?>
<josm-session version="0.1">
    <viewport>
        <center lat="46.557291654119595" lon="6.144598643788585"/>
        <scale meter-per-pixel="0.044684"/>
    </viewport>
    <projection>
        <projection-choice>
            <id>core:mercator</id>
            <parameters/>
        </projection-choice>
        <code>EPSG:3857</code>
    </projection>
    <layers active="1">
        <layer index="1" name="Hiking routes" type="osm-data" version="0.1" visible="true">
            <file>layers/01/data.osm</file>
        </layer>
        <layer index="2" name="PDIPR ECLA.zip" type="open-data" version="0.1" visible="true">
            <file>file:/Users/pyrog/Downloads/PDIPR%20ECLA.zip</file>
        </layer>
    </layers>
</josm-session>

Revision:18360
Build-Date:2022-01-02 23:56:48

Identification: JOSM/1.5 (18360 en_GB) Mac OS X 11.2
OS Build number: macOS 12.2.1 (21D62)
Memory Usage: 1109 MB / 2048 MB (353 MB allocated, but free)
Java version: 17.0.1+12-LTS, Azul Systems, Inc., OpenJDK 64-Bit Server VM
Look and Feel: com.apple.laf.AquaLookAndFeel
Screen: Display 69732928 1280×800 (scaling 2.00×2.00)
Maximum Screen Size: 1280×800
Best cursor sizes: 16×16→16×16, 32×32→32×32
System property file.encoding: UTF-8
System property sun.jnu.encoding: UTF-8
Locale info: en_GB
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [-Djpackage.app-version=18360, --add-modules=java.scripting,java.sql,javafx.controls,javafx.media,javafx.swing,javafx.web, --add-exports=java.base/sun.security.action=ALL-UNNAMED, --add-exports=java.desktop/com.apple.eawt=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.spi=ALL-UNNAMED, --add-opens=java.base/java.lang=ALL-UNNAMED, --add-opens=java.base/java.nio=ALL-UNNAMED, --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED, --add-opens=java.base/jdk.internal.ref=ALL-UNNAMED, --add-opens=java.desktop/javax.imageio.spi=ALL-UNNAMED, --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED, --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED, -Djpackage.app-path=/Applications/JOSM.app/Contents/MacOS/JOSM]
Dataset consistency test: No problems found

Plugins:
+ FastDraw (35893)
+ PicLayer (1.0.2)
+ apache-commons (35893)
+ apache-http (35893)
+ buildings_tools (35929)
+ cadastre-fr (35893)
+ contourmerge (v0.1.8)
+ ejml (35893)
+ geotools (35906)
+ gridify (1606242219)
+ javafx (35807)
+ jaxb (35893)
+ jna (35893)
+ jts (35893)
+ log4j (35893)
+ opendata (35910)
+ osmwiki-dataitem (1.2.3)
+ photo_geotagging (35893)
+ photoadjust (35893)
+ pt_assistant (1ff2e15)
+ reverter (35893)
+ scripting (30798)
+ utilsplugin2 (35893)
+ wikipedia (605)

Map paint styles:
- ${HOME}/Downloads/Styles_ColourGPSData-style.mapcss
- https://josm.openstreetmap.de/josmfile?page=Styles/Osmc&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/NumberedWalkingNodeNetworks&zip=1
+ ${HOME}/Downloads/Guidepost.mapcss
+ https://raw.githubusercontent.com/yopaseopor/traffic_signs_style_JOSM/master/Styles_Traffic_signs_EUR_OC.zip
- https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransport&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/NumberedCycleNodeNetworks&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/NumberedWalkingNodeNetworks&zip=1

Last errors/warnings:
- 00041.297 W: Can't use layer RGEALTI-MNT_PYR-ZIP_FXX_LAMB93_WMTS1 because no supported formats where found. Layer is available in formats: image/x-bil;bits=32
- 00041.298 W: Can't use layer RGEALTI-MNT_PYR-ZIP_FXX_LAMB93_WMTS2 because no supported formats where found. Layer is available in formats: image/x-bil;bits=32
- 00041.299 W: Can't use layer Modèle Numérique de Terrain issu du RGEALTI because no supported formats where found. Layer is available in formats: image/x-bil;bits=32
- 00041.300 W: Can't use layer RGEALTI-MNT_PYR-ZIP_WLD_WGS84G_WMTS_20180326 because no supported formats where found. Layer is available in formats: image/x-bil;bits=32
- 00041.301 W: Can't use layer Modèle Numérique de Terrain issu du RGEALTI because no supported formats where found. Layer is available in formats: image/x-bil;bits=32
- 00041.304 W: Can't use layer RUE_FEMININE because no supported formats where found. Layer is available in formats: application/x-protobuf
- 00041.307 W: Can't use layer MNT SRTM3 because no supported formats where found. Layer is available in formats: image/x-bil;bits=32
- 00041.308 W: Can't use layer MNT SRTM3 because no supported formats where found. Layer is available in formats: image/x-bil;bits=32
- 00160.802 E: org.openstreetmap.josm.io.IllegalDataException: Line 1 column 1: Premature end of file.. Cause: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1]
- 00160.975 E: Error - <html>Could not read file 'Data Layer 133_20220216_193253222.osm'.<br>Error is:<br>Line 1 column 1: Premature end of file.</html>

[Bjoeni]

The session file doesn't contain any information which file inside the ZIP was actually opened.

Temporary fix: Include the layer in the *.joz archive when saving the session.