You need to add following configuration which indicates those resources need
to be processed and property values will be replaced. By default Maven resources plug-in will not do property value substitution (filtering), so it will need to be enabled within the <build> section of the pom.xml file. Filtering value true will enable the resources processing and substitute property values. In addition to that one can include/exclude the resources
<build>
.....
.....
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
.....
.....
</build>