Changes

Summary

1. Fix UnsupportedClassVersion raised in tests when useToolchain used. (details)

Commit 17c6b6ade5a0614c0e46b6834ee7a37f6a4a9b47 by simon bernard Fix UnsupportedClassVersion raised in tests when useToolchain used.
	leshan-server-demo/src/main/java/org/eclipse/leshan/server/demo/LwM2mDemoConstant.java
	leshan-server-demo/src/main/java/org/eclipse/leshan/server/demo/LeshanServerDemo.java (diff)
	leshan-server-demo/src/test/java/org/eclipse/leshan/server/demo/model/ValidateServerDemoModelsTest.java (diff)