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Published Jun. 30, 2025

Duplicate files in Liferay theme WAR file

Written By

Madhusudan Sharma

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Issue

When building a Liferay theme using Liferay Developer Studio, multiple versions of CSS and JS files are created in the compiled WAR file.

Environment

  • Liferay DXP 7.4

Resolution

To prevent duplicate files from accumulating in the theme's WAR file, configure the theme's build.gradle file. Follow these steps:

  1. Open the theme's build.gradle file.
  2. Add the following property declaration to the configuration script: 
    war.duplicatesStrategy = "EXCLUDE"

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