How the JVM Really Handles Exceptions: A Bytecode Tour
When a Java statemant throws, the magic does not happen in the source you wrote but in the Exception table that the compiler quietly appends to the method’s bytecode. Let’s open the hood and watch the gears turn.
1 A minimal throw
public static void demo() {
int x = 1 / 0;
}
Compiling and disassembling:
$ javac Demo.java
$ javap -v Demo
A ...
Posted on Wed, 13 May 2026 16:06:53 +0000 by weiwei