if (!(member instanceof JApiClass)) {
            return null
        }

        if (!changed(member)) {
            return null
        }

        Optional<CtClass> oldClass = member.oldClass
        Optional<CtClass> newClass = member.newClass
        if (!oldClass.isPresent() || !newClass.isPresent()) {
            // breaking change would be reported
            return null
        }

                <a class="btn btn-info" role="button" data-toggle="collapse" href="#accept-${changeId}" aria-expanded="false" aria-controls="collapseExample">Accept this change</a>
                <div class="collapse" id="accept-${changeId}">
                  <div class="well">

     * to quickly open the changes file.  By then we can also regex that path out of the description
     * in order to create a changes {@link File} for further use in this class.
     *
     * @param data the report data containing a description to parse
     * @return accepted api changes reported upon, as a file
     */

        if (newInterfaces.isEmpty()) {
            return null
        }

        List<String> changes = filterChangesToReport(newClass, newInterfaces)
        if (changes.isEmpty()) {
            return null
        }
        return acceptOrReject(c, changes, Violation.error(c, " introduces internal or incubating interfaces"))
    }

 *
 * <p>
 * Reports simple superclass changes (e.g. the removal of a superclass) as a breaking change, as it affects what methods can be
 * called with the given type, even if the methods and fields inherited don't change.
 * </p>
 */
class BinaryBreakingSuperclassChangeRule extends AbstractSuperClassChangesRule {

            List<String> changes = []
            if (operatorChanged) {
                changes.add(modifierChangeDetail("operator", newIsOperator))
            }
            if (infixChanged) {
                changes.add(modifierChangeDetail("infix", newIsInfix))
            }
            return acceptOrReject(member, changes, Violation.error(member, "Breaking Kotlin modifier change"))
        }

        return null

        oldMethods.removeAll(newMethods)

        if (oldMethods.isEmpty()) {
            return null
        }

        List<String> changes = filterChangesToReport(oldClass, oldMethods)
        if (changes.isEmpty()) {
            return null
        }
        return acceptOrReject(c, changes, Violation.error(c, " methods removed in internal super class"))
    }

    private Set<CtMethod> collectAllPublicApiMethods(CtClass c) {

            } else if (oldNullability && !newNullability) {
                warnings << "Return nullability changed from nullable to non-nullable"
            }
        }

        if (!errors.isEmpty()) {
            def changes = errors + warnings
            return acceptOrReject(member, changes, Violation.error(member, changes.join(" ")))
        }

                      'incubating': incubatingInterface]
    }

    def "#member change should not be reported"() {
        expect:
        noViolation(rule)

        where:
        member << [Mock(JApiMethod), Mock(JApiField), Mock(JApiImplementedInterface), Mock(JApiConstructor)]
    }

    def "nothing should be reported if no changes"() {
        expect:
        noViolation(rule)
    }

 *
 * When merging `releaseX` branch into `master`, we should only use the release note from the `master` branch,
 * but sometimes changes on release notes.md was brought to master and merged unnoticed,
 * e.g https://github.com/gradle/gradle/pull/25825
 *
 * This script is to check if there is any merge commit that brings changes from release branch to master.
 * Usage: groovy CheckBadMerge.groovy <commit1> <commit2> ...