[CASSANDRA-15713] InstanceClassLoader fails to load with the following previously initiated loading for a different type with name "org/w3c/dom/Document"

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.0-beta1, 4.0
• Component/s: Test/dtest/java
• Labels: pull-request-available
• Change Category: Quality Assurance
• Complexity: Low Hanging Fruit
• Platform: All

Source Control Link

https://github.com/apache/cassandra-in-jvm-dtest-api/commit/d59833f2223a85a4dc3f4ea597384588d5d008df

Test and Documentation Plan

manual verification

• Assignee: David Capwell
• Reporter: David Capwell

Authors

David Capwell

Reviewers

Alex Petrov, Jon Meredith

• Created: 10/Apr/20 22:26
• Updated: 27/Aug/20 15:02
• Resolved: 20/Apr/20 20:41

Description

java.lang.LinkageError: loader constraint violation: loader (instance of org/apache/cassandra/distributed/shared/InstanceClassLoader) previously initiated loading for a different type with name "org/w3c/dom/Document”

This is caused when using dtest outside of the normal Cassandra context. There is no API to add more exclusions so unable to work around this.

Issue Links

• is related to: CASSANDRA-15714 Support in cassandra-in-jvm-dtest-api for replacing logback with alternate logger
• links to: GitHub Pull Request #7