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Error: java.lang.module.FindException – Module java.xml.ws not found (Ubuntu)

Running ABRA Flexi on Ubuntu with an Unsupported Java Version

Written by Petr Pech

⚠️ This issue only affects versions up to 2024.7.0
Newer versions include their own Java and are not affected by this issue.

This error means that ABRA Flexi is being launched with a newer version of Java that no longer includes the java.xml.ws module. ABRA Flexi requires an older version of Java for these legacy versions (typically Java 8).


How to resolve the issue:

  • Check the current Java version:

java -version
  • List available Java installations:

update-alternatives --display java
sudo update-alternatives --config java
  • Select the appropriate Java version and launch Flexi again

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