import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import javax.annotation.Nonnull;
import jenkins.model.TransientActionFactory;
<BUG>import jenkins.scm.api.SCMHead;
import jenkins.scm.impl.NullSCMSource;</BUG>
import org.kohsuke.stapler.export.Exported;
import org.kohsuke.stapler.export.ExportedBean;
@ExportedBean

import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import javax.annotation.Nonnull;
import jenkins.model.TransientActionFactory;
import jenkins.scm.api.SCMHead;
import jenkins.scm.api.SCMHeadEvent;
import jenkins.scm.api.SCMSource;
import jenkins.scm.impl.NullSCMSource;
import org.kohsuke.stapler.export.Exported;
import org.kohsuke.stapler.export.ExportedBean;
@ExportedBean
