I'm not very used to java world, so I'm not sure if my problem is on my Azure set up, or java set up. I am getting the following exception after attempting the tutorial below.

<https://learn.microsoft.com/en-us/azure/event-hubs/event-hubs-java-get-started-receive-eph>

```
Failure while registering:     
com.microsoft.azure.eventprocessorhost.EPHConfigurationException:   
Encountered error while fetching the list of EventHub PartitionIds: 
sun.security.validator.ValidatorException: PKIX path building failed: 
sun.security.provider.certpath.SunCertPathBuilderException: unable to find 
valid certification path to requested target

```

The exception occurs during this line from the sample:

```
 host.registerEventProcessor(EventProcessor.class, options).get();

```

I did the .NET version of the tutorial with little problem. Sending and receiving works in that case. Any insights? I've been fumbling around with no luck the last few days.