@Amila_Perera Refer this post:
<process-application
xmlns="http://www.camunda.org/schema/1.0/ProcessApplication"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<process-archive>
<resource>process.bpmn</resource>
<properties>
<property name="isDeleteUponUndeploy">false</property>
<property name="isScanForProcessDefinitions">true</property>
<property name="javaSerializationFormatEnabled">true</property>
</properties>
</process-archive>
</process-application>