JDK 23 JavaDoc Now Embeds 4MB DejaVu Fonts by Default, Here's How to Disable It

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Starting with JDK 23, the JavaDoc tool automatically embeds DejaVu web font files of approximately 4MB into generated API documentation, significantly inflating package sizes. A developer noticed the issue while publishing small Maven packages to Maven Central, where an unexpected 8MB usage figure prompted investigation. The maven-javadoc-plugin offers a built-in fix via the --no-fonts flag, which can be enabled through pom.xml configuration or a Maven command-line property. Developers can also use the -Dmaven.javadoc.disableNoFonts=true flag during builds to suppress font embedding without modifying project files. Importantly, the --no-fonts option is only available from JDK 23 onward, and using it with JDK 21 or earlier will result in an unrecognized option error.

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