Maven dependency management for plugin dependencies

Question

Recently, I came accross the following problem :

As I set up dependency management for my project, I had child-pom using plugin with dependencies, that I want to be

Answer 1

In my case I was using the jetty maven plugin, with a dependency on hsqldb. I copied some sample lines from the sonatype book (I think that's where I got the lines from) for using the jetty plugin, which specified the groupId as hsqldb. I am using version 2.3.2 of hsqldb. In my parent pom in the dependencyManagement section and my persistence module the groupId is org.hsqldb. Having mismatched groupIds was what was causing me to get an error, because under that old groupId there isn't a version 2.3.2. Once I changed the groupId from hsqldb to org.hsqldb everything started working.