Invocation of java.net.URL.equals(Object), which blocks to do domain name resolution

[fgdrf]

reported by sonarqube analysis in several implementations:

• org.locationtech.udig.catalog.ServiceParameterPersister.store(IProgressMonitor, Preferences, Collection)
• org.locationtech.udig.catalog.internal.CatalogImpl.replace(ID, IService)
• org.locationtech.udig.catalog.ui.search.SearchView$1.refresh(IResolve)
• org.locationtech.udig.catalog.ui.search.SearchView.showInfo(Info)
• org.locationtech.udig.catalog.ui.workflow.ResourceSelectionState.match(Collection, URL, IProgressMonitor)