Right, should look something like this :
/jdk/…
/lib/…
/lib/product-sns-4.7.3-SNAPSHOT/lib/mysql-connector-java-8.0.30.jar
When you start it, it’s using the jdk/… that’s included in the download, so the menu Help, About shows java version 17, which should work with that mysql jar file.
When I then try to read data from say jdbc:mysql://localhost/archive, that either works, or it fails with a meaningful error message because there is a connection
issue (network, no MySQL running, …) like this :
WARNING [org.csstudio.trends.databrowser3] No archived data for xxx
…
java.lang.Exception: Cannot connect to jdbc:mysql://localhost/archive as archive
…
Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
What you see is this :