ScriptRunner+CommandResult: subprocess execution, cwd/env/input/timeout/check/capture, interpreter detection and async process start.TaskScheduler+TaskInfo: delays, repeats, pause/resume/cancel, retries, wait/inspection/shutdown.Logger: structured context, levels, console/file output, rotation.EmailManager: EmailMessage construction, HTML, CC/BCC, attachments, SMTP and inbox helper.FileTransferManager: local/FTP transfers with IDs/status/progress.TextProcessor: counts, positions, replace, n-grams, extract URLs/e-mails, summarize, similarity/readability/stats.EventBus,TTLCache,RateLimiter,RetryPolicy,CircuitBreaker,Stopwatch.