Want to mock your APIs away when testing with Java? Have a look at Wiremock! Bas Dijkstra has created an awesome open-source workshop on Wiremock, here you can find a summary. Link to a text version in the first reply.
A social place intended as a chill hangout place for software testers, developers, or just about anyone involved in delivering software and who is interested in both the technical as well as the social side of things.
https://agile-and-testing.chriss-baumann.de/2023/02/wiremock-workshop-mindmap/