WARNING: An illegal reflective access operation has occurred

My code seems to be working however I am seeing this error in the logs:
```
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.amazonaws.services.lambda.runtime.serialization.factories.JacksonFactory$VoidDeserializer (file:/home/niqo/.gradle/caches/modules-2/files-2.1/com.amazonaws/aws-lambda-java-serialization/1.0.0/7501d239ebfe3978713054a4466d6eb020e7da14/aws-lambda-java-serialization-1.0.0.jar) to constructor java.lang.Void()
WARNING: Please consider reporting this to the maintainers of com.amazonaws.services.lambda.runtime.serialization.factories.JacksonFactory$VoidDeserializer
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
```

Start by reproducing the warning involving aws-lambda-java-serialization-1.0.0.jar and JacksonFactory$VoidDeserializer, using the log output in the issue. Trace the reflective access to java.lang.Void() and verify that the completed change no longer emits the illegal-access warning on the supported Java runtime.

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