New Sample: Spring Boot 3 + Ehcache 3 XML config with Spring Bean Wiring

09-spring-boot-ehcache-xml/.gitignore

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+/target
+/frontend
+
+### STS ###
+/.apt_generated
+/.classpath
+/.factorypath
+/.project
+/.settings
+/.springBeans
+
+### IntelliJ IDEA ###
+/.idea
+/*.iws
+/*.iml
+/*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/build/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/

09-spring-boot-ehcache-xml/.mvn/wrapper/maven-wrapper.properties

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+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.3/apache-maven-3.9.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar

09-spring-boot-ehcache-xml/README.md

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+## Overview
+
+This sample integrates together:
+
+* Spring Boot 3
+* Ehcache 3
+* AOP
+* Metrics
+* Prometheus
+* Actuator
+* Vaadin
+
+It accesses an online service for currency conversion and simulate some additional latencies.
+
+It also creates 2 caches (heap only), with listeners and TTL of 60 seconds.
+
+## How to run this sample:
+
+1. Requires: **Java 17**
+2. You must first get an API key at https://freecurrencyapi.com/
+2. Build: `./mvnw package`
+3. Run: `./target/spring-boot-ehcache-0.0.1-SNAPSHOT.jar --app.freecurrencyapi.key=<your-api-key>`
+4. Open your browser at http://localhost:8080/
+5. Execute some currency conversion
+6. Look at the logs below
+7. Look at Spring Boot actuator endpoints at http://localhost:8080/actuator to see the metrics and caches and verify
+   that the caching works.