EqualsVerifier can be used in Java unit tests to verify whether the contract for the equals and hashCode methods is met.

POJO Testing & Identity Management Made Trivial

Minimalistic shallow equality check for arrays/objects

Safer universal equivalence (==) for Scala.

Kotlin/JS sugar

Java testing framework for testing pojo methods. It tests equals, hashCode, toString, getters, setters, constructors and whatever you report in issues ;)

Lombok port for Rust

Comparable T::Struct's for the equality focused typed Ruby developer.

Source generator for Equals and GetHashCode with attribute based control of equality implementation

A flexible JSON deep-equality comparator with optional ignoring of JSON keys and values

Fluent builders for correct equals() and hashCode() implementations for Java 8+

Java framework for testing POJO methods; tests equals, hashCode, toString, getters, setters and constructors

Supports value comparison for complex data.

testing of array deep equals 66% faster than JSON.stringify, accounts for nested arrays and objects

This project is to create Java POJO (Plain Old Java Object).

A tool to compare objects easier

An isomorphic timing-safe equality function for strings and Uint8Arrays.

Utilitity library for testing stuff that I use in multiple projects

Makes JavaScript more object-orientated

Automated junit tests for DTO, Entity, JavaBeans style classes to increase test coverage