Eclipse project import problems

Eclipse complains about missing lifecycle annotations when importing the project.

Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-checkstyle-plugin:3.1.1:check (execution: checkstyle, phase: validate)	pom.xml	/infinispan-core	line 5

The parent POM has a <lifecycle-mapping> plugin definition with mentions of some of the plugins in use (and without Eclipse M2E integration), but not all of them.