JPlus is fully compatible with Java, offering modern language features like null safety, boilerplate code generation and other modern language features to reduce developer burden and maximize productivity.
Notably, there is currently no ‘superset’ language that keeps Java syntax almost intact while extending the language with features like null checks at the language level. JPlus aims to fill this gap, providing a language that existing Java developers can naturally learn and adopt.
Nulls are useful, but you can’t work with them in Java. Anything can be null at any time without warning, even when you have absolutely no reason to ever allow a null. Null safety as a language feature gives you the choice to allow nulls when they make sense or guarantee a value when needed. It saves you checking for nulls in the core of your logic when you already ruled them out at the boundary and enforced it at compile time.
If you check for them in your boundary, you shouldn’t check for them everywhere, only where you possibly introduce them …
But you can’t look at a method signature and instantly know who handles the null check. You need to inspect code and calls to know for sure. This will lead to paranoia, sooner or later