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Cannot start Java 11 with JMX enabled in Ubuntu

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
java, spring-boot, ubuntu
Domain
desktop, operating-systems, tooling

Research direction

Reproduce the startup failure with a Spring Boot app using host-installed Java 11 and JMX enabled. Inspect how the Flatpak exposes /run/host/usr/lib/jvm/java-11-openjdk-amd64/conf/management/management.properties and its /etc/java-11-openjdk/management/management.properties symlink. Done means the file resolves inside the Flatpak and the application starts with JMX enabled.

Written by the indexing model from the issue text.

Description

bug

When trying to start a Spring Boot app with a JRE locally installed in the host system (under /run/host/usr/lib/jvm/java-11-openjdk-amd64), I get the following exception on startup:

Error: Config file not found: /run/host/usr/lib/jvm/java-11-openjdk-amd64/conf/management/management.properties

That file actually exists, but it's a symlink that points to /etc/java-11-openjdk/management/management.properties, which is probably not "visible" to the flatpak (it should be mapped to /run/host/etc/java-11-openjdk/management/management.properties). If I disable JMX, it works instead, but this disables Spring Boot app Lifecycle Management.

Is there a workaround?

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Stars
6
Forks
10
Avg merge
7h 27m
Merged PRs (30d)
2

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