Write sandboxed integration tests for Java annotation processors and plugins.

Instrument Java bytecode with JSpecify-based null-checks

NullAudit is a tool to analyze and verify nullness annotations in Java codebases

A plugin that works with the new standard annotation definitions artifact

JSpecify Nullness Exercise

A Spring Boot 4 playground showcasing modern Java practices with declarative HTTP clients, modular architectures, API versioning, null-safety with JSpecify & NullAway, MockMvc testing, observability via OpenTelemetry, AI utilities with Spring AI, and Ahead-of-Time (AOT) optimizations and more

A maven plugin that defines a package-info.java for all packages and define @NullMarked from JSpecify.

This Maven plugin automatically generates package-info.java files with JSpecify annotations (@NullMarked or @NullUnmarked), helping you manage nullness boundaries in your Java projects without manual boilerplate.

Demonstrates the combined use of JSpecify and NullAway

Lightweight, dependency-free functional validation for Java 21+ with a type-safe, serializable, i18n-compatible Result<T>

JSpecify aims to solve the problem of null reference errors (like NullPointerException) in Java code. The repository show how to use in Maven, JSpecify and Errorprone + Nullaway.

Minimal Java project using JSpecify, Error Prone and NullAway

Jakarta EE base API.

Application with air quality data from IoT sensors.

Production management system. Using Spring Boot, Hibernate, PostgreSQL and Vaadin.