Tommy Ludwig

Demo applications showing metrics and tracing together

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Distributed tracing for spring cloud

Apache HttpComponents Site

Discord Relay is an app that allows subreddit moderators to relay items from their subreddit to a Discord channel.

https://openjdk.org/projects/valhalla

Spring Cloud CLI features

An application metrics facade for the most popular monitoring tools.

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JDK main-line development https://openjdk.org/projects/jdk

Sample code using JDK 25's Scoped Values

https://openjdk.org/projects/code-tools/jmh

Spring Boot

Spring Framework

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Direct File

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repro repo for micrometer issue gh-5793

Java distributed tracing implementation compatible with Zipkin backend services.

Evolving the Prometheus exposition format into a standard.

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Reporters and collectors for use in Google Cloud Platform

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Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.

The CircleCI OpenJDK (Java) Docker Convenience Image.

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An Application Framework for AI Engineering

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Context Propagation API

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

Zipkin is a distributed tracing system

node

Mirror of Apache HttpClient

TCP/HTTP/UDP/QUIC client/server with Reactor over Netty

Micrometer Observation Spring Boot Autoconfigurations

Sample apps to demo Micrometer features

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Spring Batch is a framework for writing offline and batch applications using Spring and Java

Provides support to increase developer productivity in Java when using Apache Cassandra. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

Non-Blocking Reactive Foundation for the JVM

Provide support to increase developer productivity in Java when using MongoDB. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

An RSocket proxy to pull metrics from applications that can only open egress

Provide listener framework for JDBC interactions and query executions via proxy.

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A High Dynamic Range (HDR) Histogram

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Provides tracing abstractions over tracers and tracing system reporters.

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Neo4j Bolt driver for Java

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Scratch scenarios written with the jcstress framework

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Prometheus instrumentation library for JVM applications

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See how much time Spring Boot services spend on an http request.

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Spring Boot starter for Wavefront

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Docker images for OpenZipkin

Bitbucket Branch Source Plugin

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Java libraries for writing microservices

Apache Camel

A stats collection and distributed tracing framework

A stats collection and distributed tracing framework

sample project to restrict http endpoints with password

Zipkin tracing library for Python and C++

Reporters and collectors for use in Azure

Zikpin Scouter UDP storage and other zipkin-scouter integrations.

Karaf integration and tests for Brave (java Zipkin tracer)

Tracing instrumentation for Cassandra and the DataStax Java Driver

Shared library for reporting zipkin spans on transports such as http or kafka

Repository that describes and sometimes implements B3 propagation

Spark job that aggregates zipkin spans for use in the UI

APM, Application Performance Monitoring System

User and developer documentation for OpenZipkin

Service Discovery for CloudFoundry

:elephant: Elasticsearch real-time search and analytics natively integrated with Hadoop

Push and deploy applications to Cloud Foundry

Auto Scaling for CF Applications

Micronaut Application Framework

A sample project to test issues faced with Spring STOMP WebSocket support using Spring Security and deploying to the cloud.

Cloud Foundry buildpack for running Java applications

Spring Boot integration with p6spy, datasource-proxy, flexy-pool and spring-cloud-sleuth

Admin UI for administration of spring boot applications

External configuration (server and client) for Spring Cloud

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Core component of the Prometheus Aggregator for Cloud Foundry

repro issue with Spring Boot multi-doc profiled YAML file

Static website and documentation for Micrometer.

The next generation of tooling for Spring Boot, including language servers for Cloud Foundry manifest files, Concourse CI pipeline definitions, and probably more

Kong plugin to simulate clients and/or servers where these cannot practically be instrumented directly

Reproduces a potential issue with config server decrypting its own properties

Java Client Library for Cloud Foundry

Kong on Cloud Foundry (with many hacks)

Reproduction project for Java heap space issue with JUnit 5 and Surefire

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RabbitMQ Java client

Reproduction of a serialization issue when using Spring Data REST with Hibernate

GitHub Analytics app. Analyses GitHub messages received from Github Webhook app. Part of the deployment pipeline example

GitHub Webhook app. Receives messages from GitHub and sends them to a message broker. Part of the deployment pipeline example

Spring Data REST issue repro project

光 HikariCP・A solid high-performance JDBC connection pool at last.

A web-based quickstart generator for Spring projects

HipChat v2 API client library based on Java 8

A Zipkin instrumentation implementation for Node.js

Consuming a RESTful Web Service :: Learn how to retrieve web page data with Spring's RestTemplate.

Integration with Netflix OSS components

bobobot

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Bootiful SQL Template - simple SQL template engine for Spring Boot Application

Demonstrates Spring Session and Spring Security auto-configuration with Spring Boot.

Spring Session

I love to know people using this. Please fork and push your solutions!

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User-contributed projects reproducing issues logged against Spring Boot

Configuration files for the server sample

Ansible modules - these modules ship with ansible

Zero Downtime Deployment with Ansible - learn how to provision Linux servers with a web-proxy, a database and automate zero downtime deployment of a Java application to a load balanced environment.

Sample apps covering various scenarios with a single page of HTML (using Angular) and Spring Security

Spring Cloud Config server sample app

Spring Cloud Config Sample Application

Spring Cloud Config properties repository sample