advice for "nearly not supported anymore" java version

[marc_marc]

What steps will reproduce the problem?

1. install a linux centos 7
2. do any official update
3. run josm via IcedTea

What is the expected result?

give me usefull info : should I switch to another "distro-available" jdk ? and/or another "web luncher" ?
and/or a warning "LTS-distro is too conservative for josm" ?

What happens instead?

seeiing an error message that request me to update java 11

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: 2022-10-10 21:15:56 +0200 (Mon, 10 Oct 2022)
Build-Date:2022-10-11 01:30:58
Revision:18571
Relative:URL: ^/trunk

Identification: JOSM/1.5 (18571 fr) Linux CentOS Linux release 7.9.2009 (Core)
Memory Usage: 244 MB / 1717 MB (24 MB allocated, but free)
Java version: 1.8.0_345-b01, 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.utf8
System property file.encoding: UTF-8
System property sun.jnu.encoding: UTF-8
Locale info: fr
Numbers with default locale: 1234567890 -> 1234567890
Desktop environment: GNOME-Classic:GNOME
Java package: java-1.8.0-openjdk:x86_64-1.8.0.345.b01
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]
Dataset consistency test: No problems found

Plugins:
+ ImproveOsm (224)
+ Mapillary (2.0.0)
+ apache-commons (36003)
+ apache-http (35924)
+ areaselector
+ austriaaddresshelper (1597341117)
+ conflation (0.6.9)
+ continuosDownload (105)
+ ejml (35924)
+ geotools (36024)
+ jackson (36006)
+ jaxb (35952)
+ jna (36005)
+ jts (36004)
+ log4j (36007)
+ opendata (36025)
+ pt_assistant (1ff2e15)
+ reverter (36011)
+ scripting
+ todo (30306)
+ utilsplugin2 (36011)
+ 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

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

Last errors/warnings:
- 00014.631 W: Le greffon scripting nécessite la version Java 11. La version actuelle de Java est 8. Vous devez mettre à jour Java pour utiliser ce greffon.
- 00014.636 W: Le greffon areaselector nécessite la version Java 11. La version actuelle de Java est 8. Vous devez mettre à jour Java pour utiliser ce greffon.

[taylor.smock]

IcedTea supports Java 11+ (see ​https://raw.githubusercontent.com/icedtea-git/icedtea/main/ChangeLog ).

I think you can set JAVA_HOME to whatever Java version you want to use (just to check, try doing JAVA_HOME=$PATH_TO_JAVA_11_INSTALL javaws -version). On Ubuntu 22.04 (headless), it printed the following to the console:

Warning! JAVA_HOME of /usr/lib/jvm/java-11-openjdk-arm64 in play!
Headless check failed. You are forced to run without any graphics. IcedTea-Web can run like this, but your app probably not. This is likely bug in your system.
null null

EDIT: If you install java-11-openjdk, I believe JAVA_HOME should be /usr/lib/jvm/java-11-openjdk-11.0.8.10-1.el7.$(arch)/, if I'm reading the package page correctly on pkgs.org.