Java EventHubClient Java 1.7

We are trying to send events to an event hub using java and storm on Azure (Java 1.7), and using the following version of the java event hub sdk: 

<dependency>
   <groupId>com.microsoft.azure</groupId>
   <artifactId>azure-eventhubs</artifactId>
   <version>0.6.9</version>
</dependency>

Is there a build of this that is compatible with Java 1.7? It throws an error java.lang.NoClassDefFoundError: java/time/temporal/TemporalUnit which I believe to be a java version issue.

This is the code with the error:

ConnectionStringBuilder connStr = new ConnectionStringBuilder(namespaceName, eventHubName, sasKeyName, sasKey);
ehClient = EventHubClient.createFromConnectionStringSync(connStr.toString());

Thanks,

Justin