ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Languages & runtimes · #java
Jule provides a fluent DSL for building type-safe SQL queries in Spring Boot. This guide shows how to implement dynamic search repositories with conditional clauses, automatic parameter binding, and result mapping—plus the limits you'll hit in production.
Move pagination and filtering to the database with Hibernate Criteria API. Learn the fetch-join trap, deep-paging fixes, and a verification checklist that prevents production surprises.
Build a Vert.x Web POST endpoint that parses JSON with BodyHandler, validates payloads safely, returns structured errors, and keeps blocking work off the event loop.
A step‑by‑step guide to add Datadog APM tracing to a Java microservice: install the Agent, drop the dd‑java‑agent jar, set environment variables, verify logs, and confirm traces in the UI.
Learn how Java’s try‑with‑resources automatically closes AutoCloseable objects, reduces leaks, and handles exceptions. Includes a full example, trade‑offs, and a quick checklist.
Replace regex with Cucumber expressions in Java step definitions. Covers built-in parameter types, custom type registration, optional segments, dry-run validation, and resolving ambiguous matches.
Compare Dynatrace OneAgent and OpenTelemetry Java agent for Kubernetes: automatic code-level visibility vs. vendor-neutral spans, licensing models, startup overhead, and a concrete Spring Boot verification checklist.
Learn how to configure Java's XML parsers to block XXE attacks by disabling DTDs and external entity resolution. A practical example, verification steps, limits, and common pitfalls are covered.
Norg is a lightweight Java object‑graph serializer that handles cycles, enforces a class whitelist, and supports explicit versioning. This architecture note outlines its minimal design, trust boundaries, operational checks, failure modes, and when to change the design.
jule
hibernate
vertx
datadog
opentelemetry
dynatrace
kubernetes
norg