}

    private void assertFoundDeadLinks(Collection<DeadLink> deadLinks) {
        assert linkErrors.exists()

        def lines = linkErrors.readLines()
        deadLinks.each { deadLink ->
            String errorStart = "ERROR: ${deadLink.file.name}:"
            assert lines.any { it.startsWith(errorStart) && it.endsWith(deadLink.message) }
        }
    }

     * - Only exists on `master`.
     * - Exists on `master` and `releaseX`.
     * If any line is only present on `releaseX` version, then it's a bad file.
     * Also, we ignore empty lines.
     */
    static boolean isBadFileInMergeCommit(String filePath, String mergeCommit, String masterCommit, String releaseCommit) {
        try {