Basic coding conventions we use

SOLID principles

Using solid principles is quite important to us. A brilliant guide to them can be found here.

Effective Java

We generally emphasize the principles shown in the book Effective Java

Null handling

"Null sucks." -Doug Lea

"I call it my billion-dollar mistake." - Sir C. A. R. Hoare, on his invention of the null reference

• @NonNull

All parameters of public methods that may not take in a null value must be annotated with lombok's @NonNull.

• Optional

All public methods that can return a nullable value must return an optional instead. A reference to the java.lang.Optional can be found here

• @Nullable

All parameters that might take in a null value must be annotated with JetBrains @Nullable annotation.