First, let's add the required dependency needed:
<dependency> <groupId>javax.enterprise</groupId> <artifactId>cdi-api</artifactId> <version>2.0</version> <scope>provided</scope></dependency> <dependency> <groupId>javax</groupId> <artifactId>javaee-web-api</artifactId> <version>7.0</version> <scope>provided</scope></dependency>