Maven: Combining multiple module jars into one war file?

Question

I have a project babybird which has 3 components persistence, business and service

in babybird\'s

Answer 1

That's fairly simple. Create another module named web or similar:

<modules>
    <module>persistence</module>
    <module>business</module>
    <module>service</module>
    <module>web</module>
</modules>

web module should depend on all others:

<dependencies>
    <dependency>
        <groupId>...</groupId>
        <artifactId>persistence</artifactId>
    </dependency>
    ...
</dependencies>

and have war packaging:

<packaging>war</packaging>

You'll also need web.xml in /src/main/webapp/WEB-INF. That's it.