Mircea-Stefan Mohora

I was getting similar behaviour when I was running the sample code on jdk 11. Ensure you're using Java 8 JDK ([https://docs.r3.com/en/platform/corda/4.6/open-source/getting-set-up.html](https://docs.r3.com/en/platform/corda/4.6/open-source/getting-set-up.html))