Udemy – Java Observability: Production JVM Diagnostics, JFR, GC, CPU

This course contains the use of artificial intelligence. Debug, profile, and fix mission-critical Java applications directly in production environments with confidence.

Who this course is for:

• Senior Java Developers looking to master JVM internal mechanics and performance tuning.
• Software Engineers responsible for diagnosing production crashes, memory leaks, and CPU spikes.
• System Architects designing resilient Java SE applications requiring real-time telemetry.
• Site Reliability Engineers (SREs) supporting enterprise Java deployments.

What you will learn:

• Capture and analyze production heap dumps using Eclipse MAT and JDK Mission Control
• Trace performance bottlenecks in real time using JDK Flight Recorder (JFR)
• Instrument Java applications with OpenTelemetry SDK and Micrometer metrics
• Diagnose complex thread deadlocks, high CPU usage, and lock contention
• Monitor garbage collection behavior and eliminate long GC pauses
• Automate diagnostic capture scripts for high memory and execution anomalies
• Apply thread pool optimization strategies to eliminate execution starvation
• Identify and resolve ThreadLocal memory leaks in application containers
• Formulate action plans to debug zero-downtime production incidents
• Analyze real-world failure case studies to prevent enterprise outages