<resources>
    <!-- globally enable resource filtering -->
    <resource>
        <directory>src/main/resources</directory>
        <filtering>true</filtering>
    </resource>
    <!-- then disable it for specific resources -->
    <resource>
        <directory>src/main/resources</directory>
        <includes>
            <include>**/*-context.xml</include>
        </includes>
        <filtering>false</filtering>
    </resource>
</resources>