Spring Boot Admin + Hazelcast playground

This project demonstrates issue described in GH-1429

Prerequisites

• Java 11 installed
• JAVA_HOME configured

Running

1. Run Hazelcast

./runHazel.sh

Hazelcast will be available on http://localhost:5701.

Shutdown hook is listening on http://localhost:8082/shutdown but you can just kill the app with CTRL + C.

2. Run Spring Boot Admin

./runAdmin.sh

The application is avaliable on http://localhost:8080

3. Run Spring Boot Admin Client

./runClient.sh

The application is avaliable on http://localhost:8081

To deregister it from SBA call GET http://localhost:8081/deregister

To register again call GET http://localhost:8081/register

Reproducing the issue

1. Run all the applications as described above.
2. Notice how on Spring Boot Admin's dashboard (http://localhost:8080) registered application has status UNKNOWN
3. Deregister client via GET http://localhost:8081/deregister
4. Observe logs of SBA