vaadin-framework/push/ivy.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ivy-module [
<!-- Keep the version number in sync with build.xml -->
    <!ENTITY atmosphere.runtime.version "2.2.7.vaadin1">

    <!ENTITY atmosphere.js.version "2.2.13.vaadin3">
]>
<ivy-module version="2.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd"
    xmlns:m="http://ant.apache.org/ivy/maven">

    <info organisation="com.vaadin" module="vaadin-push" revision="${vaadin.version}" />
    
    <configurations>
        <conf name="ide" visibility="private" />
    </configurations>
    
    <dependencies>
        <!-- API DEPENDENCIES -->

	    <!-- @WebListener is used for JSR356 websockets so we need to compile with servlet 3 API --> 
        <dependency org="javax.servlet" name="javax.servlet-api"
            rev="3.0.1" conf="ide -> default" />

        <!-- Atmosphere -->
        <dependency org="com.vaadin.external.atmosphere"
            name="atmosphere-runtime" rev="&atmosphere.runtime.version;"
            conf="ide -> default" />
        <dependency org="com.vaadin.external.atmosphere.client"
            name="jquery" rev="&atmosphere.js.version;" conf="ide -> default" />
    </dependencies>
</ivy-module>