Legacy Knowledge Base
Published Sep. 10, 2025

ConcurrentModificationException When Deploying Plugins on Liferay Portal 6.1 EE GA3

Written By

Brett Ripley

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This article outlines a specific known issue that exists within Liferay Portal 6.1 EE GA3 SP3 and provides a link to follow its resolution.

Resolution

At the time of release, there is one known issue with Liferay Portal 6.1 EE GA3 SP3. In this version of Liferay, a ConcurrentModificationException may be experienced when deploying plugins to the portal.

This issue is resolved in the liferay-fixpack-development-6-6130 update. This fix is included with the latest set of fixpacks for the portal.

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