Exclude natives from sources jar
<excludes>
<!-- Exclude the Java 1.4 API classes from the sources jar -->
<exclude>java/**</exclude>
+ <!-- Exclude GWT config -->
<exclude>joml.gwt.xml</exclude>
</excludes>
+ <!-- Exclude the natives -->
+ <excludeResources>true</excludeResources>
</configuration>
<executions>
<execution>
