In Azure Eventhub error in @Override when receiving messages with EventProcessorHost in Java

I have an eventhub and I am sending data to it. Now I need to recieve that data. So I followed the tutorial in the eventhub page

https://azure.microsoft.com/en-us/documentation/articles/event-hubs-java-ephjava-getstarted/

"Receive messages with EventProcessorHost in Java"

In all the classes it is not letting me
@Override. It gives me the following error.

Multiple markers at this line

- implements com.microsoft.azure.eventprocessorhost.IEventProcessor.onOpen

- The method onOpen(PartitionContext) of type EventProcessor must override a superclass 

<dependencies>

<dependency>

<groupId>com.microsoft.azure</groupId>

<artifactId>azure-eventhubs</artifactId>

<version>0.7.2</version>

</dependency>

<dependency>

<groupId>com.microsoft.azure</groupId>

<artifactId>azure-eventhubs-eph</artifactId>

<version>0.7.2</version>

</dependency>

</dependencies>