openjdk crash: jdk11+eclipse+jformdesigner

1. install openjdk11 from ubuntu repo

But which version of the package are you using? can you give us the full version of openjdk packages?

$ dpkg-query -W 'openjdk-11*'

Also is openjdk from ubuntu the active jdk implementation?

Can you please give us the output of

$ update-alternatives --get-selections | grep jdk

yes the active jdk is ubuntu's

› dpkg-query -W 'openjdk-11*'
openjdk-11-demo
openjdk-11-jdk:amd64 11.0.7+10-3ubuntu1
openjdk-11-jdk-headless:amd64 11.0.7+10-3ubuntu1
openjdk-11-jre:amd64 11.0.7+10-3ubuntu1
openjdk-11-jre-headless:amd64 11.0.7+10-3ubuntu1
openjdk-11-source 11.0.7+10-3ubuntu1

› update-alternatives --get-selections | grep jdk
jaotc auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jaotc
jar auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jar
jarsigner auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jarsigner
java auto /usr/lib/jvm/java-11-openjdk-amd64/bin/java
javac auto /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
javadoc auto /usr/lib/jvm/java-11-openjdk-amd64/bin/javadoc
javap auto /usr/lib/jvm/java-11-openjdk-amd64/bin/javap
jcmd auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jcmd
jconsole auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jconsole
jdb auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jdb
jdeprscan auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jdeprscan
jdeps auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jdeps
jexec auto /usr/lib/jvm/java-11-openjdk-amd64/lib/jexec
jfr auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jfr
jhsdb auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jhsdb
jimage auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jimage
jinfo auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jinfo
jjs auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jjs
jlink auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jlink
jmap auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jmap
jmod auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jmod
jps auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jps
jrunscript auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jrunscript
jshell auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jshell
jstack auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jstack
jstat auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jstat
jstatd auto /usr/lib/jvm/java-11-openjdk-amd64/bin/jstatd
keytool auto /usr/lib/jvm/java-11-openjdk-amd64/bin/keytool
pack200 auto /usr/lib/jvm/java-11-openjdk-amd64/bin/pack200
rmic auto /usr/lib/jvm/java-11-openjdk-amd64/bin/rmic
rmid ...

Running JFormDesigner 7.0.1 works fine under Ubuntu running OpenJDK 11.0.8 (11.0.8+10-0ubuntu1~20.04) - it shows a screen asking for registration. I don't have a license to go further than that. The original report does not clarify if this was the screen that crashed or if one needed a license so the file can be opened - if so, please provide a reproducer that don't require a license to be run.

Unfortunately JFormDesigner's 7.0.2 update disabled running it under Ubuntu's OpenJDK. After creating a new JForm it shows a screen asking the user to download a JVM from AdoptOpenJDK. The company does not provide a bug tracker to follow up on this.

Setting the bug as Incomplete for Focal since we need, at minimum, more detailed debug information to see where the crash is happening on Java and the native stack. A non-proprietary reproducer would be ideal.

Changelog of JFormDesigner 7.0.2 now states the following:

Eclipse plug-in on Ubuntu Linux: Disallow using Ubuntu Java to avoid Eclipse crashes. AdoptOpenJDK 11 or later is recommended to run Eclipse on Ubuntu.

>Changelog of JFormDesigner 7.0.2 now states the following:
>Eclipse plug-in on Ubuntu Linux: Disallow using Ubuntu Java to avoid Eclipse crashes. AdoptOpenJDK 11 or later is recommended to run Eclipse on Ubuntu.

Yes, I noticed that when I was trying to reproduce the issue, as reported in #3.

They disabled it on their own and since we never heard a word I can't tell if they have any interest in getting it working with our OpenJDK. Reports about 7.0.2 not running with our OpenJDK should be reported directly to them, preferably referencing this bug as well.

At the time I did send an email to the company behind the plugin to let them know we tried to take a look and to ask for some debugging data, but never got a reply.

[Expired for openjdk-lts (Ubuntu) because there has been no activity for 60 days.]

[Expired for openjdk-lts (Ubuntu Focal) because there has been no activity for 60 days.]