*/
package org.sonar.server.issue;
-import java.util.Collections;
import java.util.List;
import org.sonar.core.issue.DefaultIssue;
import org.sonar.core.issue.IssueChangeContext;
import org.sonar.server.issue.workflow.Transition;
import org.sonar.server.user.UserSession;
-import static com.google.common.base.Preconditions.checkArgument;
import static java.util.Objects.requireNonNull;
import static org.apache.commons.lang.StringUtils.isBlank;
import static org.apache.commons.lang.StringUtils.isNotBlank;