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CTO Full-Stack Academy

15 years of IT industry experience, sharing practical insights on pre-sales, product design, architecture, technology development, software testing, project management, IT consulting, and operations management.

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Latest from CTO Full-Stack Academy

48 recent articles

CTO Full-Stack Academy

Aug 20, 2026 · Industry Insights

Inside IBM Consulting: End‑to‑End Business‑Tech Transformation Methodology

The article outlines IBM Consulting’s end‑to‑end transformation approach, detailing its five‑stage project lifecycle, four flagship methodologies, the mix of proprietary and generic tools, consultant best‑practice skills, and domain‑specific processes for strategy, IT, supply‑chain, organization and marketing.

IBM ConsultingProcess ReengineeringSupply Chain

0 likes · 24 min read

Inside IBM Consulting: End‑to‑End Business‑Tech Transformation Methodology

CTO Full-Stack Academy

Aug 16, 2026 · Fundamentals

Mastering Maven: A Complete Guide to Java Build Management

This article explains Maven's role as a Java project manager, covering its core concepts, lifecycle, repositories, plugins, scopes, inheritance, practical setup steps, common use cases, advantages, drawbacks, real‑world project examples, and typical pitfalls.

JavaMavenbuild automation

0 likes · 17 min read

Mastering Maven: A Complete Guide to Java Build Management

CTO Full-Stack Academy

Aug 12, 2026 · Fundamentals

Understanding Java Forward Compilation, Decompilation, and Class Loading

The article explains how Java source code is compiled into bytecode, how class loaders (including the bootstrap, extension, application, and custom loaders) load and verify classes using the parent‑delegation model, and how encryption, obfuscation, and decompilation tools affect code protection and debugging.

ClassLoaderCompilationDecompilation

0 likes · 23 min read

Understanding Java Forward Compilation, Decompilation, and Class Loading

CTO Full-Stack Academy

Aug 4, 2026 · Fundamentals

Mastering SOLID: Real‑World Java Examples for Clean OOP Design

This article explains the five SOLID object‑oriented design principles with everyday Java scenarios, showing bad implementations, proper refactorings, practical criteria for each rule, and common pitfalls to help developers write more maintainable and extensible code.

JavaObject-Oriented DesignSOLID

0 likes · 9 min read

Mastering SOLID: Real‑World Java Examples for Clean OOP Design

CTO Full-Stack Academy

Jul 30, 2026 · Operations

Common Cluster Issues and Practical Solutions for Apps, DBs, Caches, MQ, Files, and Search

The article enumerates typical problems encountered in application, database, cache, message‑queue, file‑server, and search clusters—such as session loss, uneven load, data inconsistency, and node failures—and provides concrete mitigation strategies like JWT authentication, distributed locks, health checks, NTP sync, and proper sharding.

CachingClusterMessage Queue

0 likes · 58 min read

Common Cluster Issues and Practical Solutions for Apps, DBs, Caches, MQ, Files, and Search

CTO Full-Stack Academy

Jul 28, 2026 · Backend Development

Mastering Batch Processing: Core Principles, Pitfalls, and Real‑World Cases

This article explains the fundamentals of batch processing, outlines its non‑real‑time nature, lists typical scenarios and pros‑cons, provides practical implementation guidelines, and presents three detailed industry case studies illustrating how large‑scale offline jobs are built and maintained.

BackendBatch Processingcase study

0 likes · 11 min read

Mastering Batch Processing: Core Principles, Pitfalls, and Real‑World Cases

CTO Full-Stack Academy

Jul 28, 2026 · Fundamentals

How to Build a 2026 Desktop PC for 2,000–10,000 RMB: 9 Budget Tiers Explained

This guide breaks down nine budget ranges from 2,000 to 10,000 RMB, offering three pre‑configured desktop builds per tier—office, gaming, and productivity—complete with component lists, performance pros and cons, and practical selection tips for 2026 hardware.

Hardware Selectionbudget builddesktop PC

0 likes · 25 min read

How to Build a 2026 Desktop PC for 2,000–10,000 RMB: 9 Budget Tiers Explained

CTO Full-Stack Academy

Jul 22, 2026 · Information Security

Why Missing HTTPS Creates Dangerous Plaintext Transmission Vulnerabilities

The article explains how using plain HTTP instead of HTTPS exposes data to eavesdropping and tampering, illustrates real‑world attack scenarios such as MITM on public Wi‑Fi, and outlines step‑by‑step countermeasures including full‑site HTTPS deployment, forced redirects, HSTS, and additional payload encryption.

HSTSHTTPSMITM attack

0 likes · 7 min read

Why Missing HTTPS Creates Dangerous Plaintext Transmission Vulnerabilities

CTO Full-Stack Academy

Jul 22, 2026 · Information Security

Understanding Replay Attacks in Software Systems and How to Prevent Them

The article defines replay attacks, outlines high‑risk scenarios such as payment and coupon redemption, demonstrates two real‑world exploits, and presents four practical mitigation techniques—including unique transaction IDs, timestamp windows, one‑time nonces, and signature verification—to protect APIs.

API SecurityReplay AttackSoftware Security

0 likes · 10 min read

Understanding Replay Attacks in Software Systems and How to Prevent Them

CTO Full-Stack Academy

Jul 22, 2026 · Information Security

Understanding Path Traversal: How Directory Traversal Leads to Arbitrary File Reads

The article explains how unsanitized user‑supplied filenames combined with simple path concatenation enable attackers to traverse directories and read arbitrary files, illustrates common vulnerable endpoints with Java examples, and outlines prioritized defenses such as ID whitelisting and canonical path validation.

JavaWeb Securitydirectory traversal

0 likes · 7 min read

Understanding Path Traversal: How Directory Traversal Leads to Arbitrary File Reads