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PF ID-JAG: Can PingFederate 12.3.3 issue an ID-JAG through a custom token generator? For the fixed-destination proof described here, the answer is ye
Technical debt is usually described as a bill that arrives later for a purchase made earlier: speed bought on credit, with the cost deferred to some f
I was debugging a Spring Boot API at 2 AM on a Tuesday when I realized something that should have been obvious: my database query was being executed 5
What is the Scanner Class? Scanner is a class in the java.util package used to read input — from the keyboard (System.in), a file, or even a String.
1. JDBC Connection & SQL Errors My first roadblock wasn't even logic — it was just getting connected. I kept hitting: com.mysql.cj.jdbc.exceptions.
What a starter actually is When you build a real application, you rarely need just one library. To expose a web endpoint in the Spring worl
Everyone is talking about AI-assisted security. Fewer people are being honest about what it actually looks like in practice. I used Claude throughout
A configuration backup is not automatically a secure backup. In an AI coding environment, the archive may contain model endpoints, tool permissions, m
188 vulnerabilities. That's where we started. After the modernisation, the jjwt migration, the targeted remediations, and the documented suppressions
A machine learning API accepts a .pkl file and calls pickle.loads(). A Java REST endpoint accepts application/x-java-serialized-object. A configuratio
Spring and JAX-RS controllers that omit consumes constraints expose every parser the framework registered. Switch Content-Type: application/json to Co
The tokenizer (Phase 2) solves half the problem: text becomes a sequence of integer IDs. But an ID, by itself, carries no meaning. It's just an index,
An invoice, drawing, report, or project file can live inside an application for years without becoming a document the operating system understands.
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This is a summary of the full tutorial published on howtostartprogramming.in. Introduction In 2026, AI coding assistants have become indispensable pa
A file tree looks like a read-only view of a directory. In a coding agent, it is closer to a live distributed projection. The filesystem changes outs
The magic you meet on day one The first time you use Spring Boot, something strange happens. You add a database library to your project, re
Apache Camel: Building Message-Driven Architectures With Java Apache Camel is one of those libraries that sits in the background of enterpr
Every Java developer uses HashMap. Far fewer can explain what actually happens when you call put() or get(). Here's what's going on under the hood. I
Two threads each increment a shared counter 1,000 times. You expect 2,000. You run it — and get 1,847. Where did the missing increments go? I animate