<module>
    <inherits name="com.google.gwt.user.User" />
    <inherits name="com.google.gwt.i18n.I18N"/>
    <inherits name="com.google.gwt.resources.Resources" />

    <entry-point class="com.redspr.redquerybuilder.core.RedQueryBuilder" />

    <!--  extend-property name="locale" values="en_GB"/ -->

    <source path="" >
        <include name="com/redspr/**" />
        <include name="java/sql/**" />
        <include name="java/math/**" />
    </source>

</module>

<module>
    <inherits name="com.google.gwt.user.User" />
    <inherits name="com.google.gwt.i18n.I18N"/>
    <inherits name="com.google.gwt.resources.Resources" />

    <source path="" >
        <include name="com/redspr/**" />
        <include name="java/sql/**" />
        <include name="java/math/**" />
    </source>

</module>

Remove entry point for library module.
Remove entry point for library module.