Ubuntu Bionic need JRE update

[matthewdarwin]

What steps will reproduce the problem?

1. set /etc/apt/sources.list.d/josm.list to deb https://josm.openstreetmap.de/apt bionic universe
2. sudo apt install josm
3. notice that it pulls in JRE8

What is the expected result?

Expect JOSM has reasonable font size on large 4K UHD monitors.

What happens instead?

Get a very small font that is hard to read
JRE8 is very old and JOSM doesn't work well with JRE8 with 4K UHD monitors.

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

I changed /usr/bin/josm to have the line:

JAVA_CMDS="${JAVA_CMDS} /usr/lib/jvm/java-11-openjdk/bin/java /usr/lib/jvm/java-11-openjdk-$ARCH/bin/java /usr/lib/jvm/java-11-oracle/bin/java"

then already having installed JRE11, the following commands work as expected:

export JAVA_OPTS="-Xms2048M -Xmx6114M -Dsun.java2d.uiScale=2"
/usr/bin/josm

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-05-06 23:56:40 +0200 (Sun, 06 May 2018)
Revision:13710
Build-Date:2018-05-06 21:59:07
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (13710 en) Linux Ubuntu 18.04 LTS
Memory Usage: 2048 MB / 6114 MB (1681 MB allocated, but free)
Java version: 10.0.1+10-Ubuntu-3ubuntu1, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 3840x2160
Maximum Screen Size: 3840x2160
Java package: openjdk-11-jre:amd64-10.0.1+10-3ubuntu1
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-20ubuntu0.1
VM arguments: [-Djosm.restart=true, -Djava.net.useSystemProxies=true, -Dsun.java2d.uiScale=2]

Plugins:
+ ImproveOsm (133)
+ Mapillary (v1.5.12+post13643)
+ QuickLabel (1524508484)
+ apache-commons (34109)
+ apache-http (34109)
+ colorscheme (34109)
+ conflation (0.5.8)
+ continuosDownload (68)
+ contourmerge (1032)
+ geochat (34109)
+ geojson (80)
+ jts (34038)
+ reverter (34109)
+ tageditor (34109)
+ todo (30304)
+ turnlanes-tagging (263)
+ undelete (34109)
+ utilsplugin2 (34109)

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/Cycleways&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/SlovakiaBicycleRoutes&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Sidewalks&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Noname&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/LessObtrusiveNodes&zip=1

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.

[Don-vip]

Java 8 is not the latest version but it is not very old neither: this the current LTS version and the preferred version to run JOSM.

Java 11 has not been released yet. What you are in fact using in openjdk-11 package is currently Java 10. But with the new pace of Java releases, Debian/Ubuntu maintainers are forced to use this trick in order to update to Java 11 once it is released in September.

You will notice there is a critical bug with this version of Java in Ubuntu (#15851), so we must wait for this bug correction to be backported to bionic before switching:

​https://bugs.launchpad.net/ubuntu/+source/ca-certificates-java/+bug/1769013

[matthewdarwin]

Thanks for the comments. I believe the issue would be resolved JRE9/10 as well. The problem is definitely we JRE8 and earlier.

​https://help.openstreetmap.org/questions/61236/how-can-i-scale-josm-for-a-4kuhd-display

[Don-vip]

Still waiting for backport: ​https://bugs.launchpad.net/ubuntu/+source/ca-certificates-java/+bug/1739631

[Don-vip]

Still waiting... ​https://bugs.launchpad.net/ubuntu/+source/ca-certificates-java/+bug/1770553
This is so slow! just to backport a fix :(

[Don-vip]

Finally there is some activity in the bugs, it should be available by July 26th (release date of ​18.04.1)

[Don-vip]

​Or not. I really don't understand how Ubuntu works.

[Don-vip]

It has been backported finally! So we can now address this issue.

[Don-vip]

In 14071/josm:

fix #16290 - prefer openjdk-11 over openjdk-8; drop detection of Oracle runtimes

[Don-vip]

In 14072/josm:

fix #16290 - add java11-runtime to debian/control

[Don-vip]

Ticket #16997 has been marked as a duplicate of this ticket.