JIT compilation

JIT compilation stands as a pivotal component in the JVM, revolutionizing the execution of Java applications. Unlike traditional ahead-of-time (AOT) compilation, where the entire code is translated into machine code before execution, JIT compilation occurs dynamically during runtime. This on-the-fly translation transforms Java bytecode into native machine code just before execution, optimizing performance and adaptability for the machine it runs on, considering which parts of the code are used the most and need to be optimized. This dynamic optimization process ensures that the JVM focuses on the most frequently executed portions of the code, effectively enhancing performance and adaptability to the specific runtime conditions.

The adoption of JIT compilation within the JVM is rooted in the pursuit of striking a balance between portability and performance. By interpreting bytecode initially and then selectively compiling frequently executed code paths into native...