Java SE 11 Programming Complete — Lesson 3: Modules, Concurrency, I/O, Localization, and Core APIs

Technical Scope

• Java Platform Module System
• threads, executors, synchronization, and concurrent collections
• Path, Files, streams, and serialization awareness
• dates, times, resource bundles, locale, and formatting

Instructor Demonstration

Demonstrate Java Platform Module System inside a modular inventory service implemented, tested, profiled, and persisted through JDBC, then capture the exact configuration, command, transaction, report, or code evidence that proves the result.

Applied Workshop

Implement a controlled workshop covering threads, executors, synchronization, and concurrent collections and Path, Files, streams, and serialization awareness, then test a failure or exception involving dates, times, resource bundles, locale, and formatting.

1. Confirm environment, identity, data, dependencies, and expected result.
2. Complete the product-specific implementation or analysis.
3. Capture commands, configuration, output, logs, transactions, or reports.
4. Explain the operational, security, performance, or business trade-off.

Validation Standard

The Modules, Concurrency, I/O, Localization, and Core APIs result must be reproducible, traceable to approved inputs, and consistent with the expected Oracle product behavior.

• The intended target and ownership are verified.
• The result is supported by reproducible evidence.
• Security, performance, reliability, and support impact are reviewed.
• Unexpected behavior is investigated before acceptance.

Failure Analysis

Diagnose issues in Java Platform Module System, threads, executors, synchronization, and concurrent collections, Path, Files, streams, and serialization awareness, or dates, times, resource bundles, locale, and formatting without making an unverified production change.

Learners isolate the smallest proven cause, apply a reversible correction, rerun validation, and record the preventive action.