The issue could be due to the mismatch in the eventHub jar and the dependencies added. Also, not all the required dependencies may be added.

Suggestions:

Using the azure_eventhubs_spark_2_12_.jar eventHub spark jar along with the following dependencies should solve the issue:

• azure_eventhubs_3_2_0.jar
• scala_java8_compat_2_12_0_9_1.jar
• proton_j_0_33_6.jar