5 Java Performance Pitfalls and How Real-World Profiling Can Fix Them

String concatenation using the + operator in loops continues to cause performance issues in enterprise applications. This article identifies five common Java performance pitfalls encountered in real-world enterprise applications, supported with concrete profiling data and metrics. A step-by-step guide to setting up Java 17, IntelliJ IDEA on a Mac, and common profiling tools is provided below.