Removes invalid objects during Gson parsing which are marked as required, yet null/empty.

Inject null-checks into Java-code

An AutoValue extension that makes properties in AutoValue classes accessible as nodes.

Force types to be explicit about the null-status (nullable or non-null) of all enclosed constructors, fields and methods

Java repository to show how to handle nulls

Simple and Easy-To-Use Validation Utility Library for Java

Java introduced a new class Optional in jdk8. It is a public final class and used to deal with NullPointerException in Java application. You must import java.util package to use this class. It provides methods which are used to check the presence of value for particular variable.

Enhanced null check syntax for Java

A redundant null-check analysis and removal implementation using Soot on java, performed on Eclipse OpenJ9 JVM