Hot! Asm-3.1.jar — Download

While newer versions of ASM exist, version 3.1 remains a critical dependency for several legacy environments, particularly within older iterations of the and older Spring Framework versions. Why Use ASM 3.1?

If you have downloaded the JAR but still see errors, check the following:

The JAR file size is remarkably small, which is ideal for reducing the weight of larger distributed systems.

Because ASM 3.1 is an older release, you should always source it from reputable repositories to ensure the integrity of the bytecode. 1. Direct Download from Maven Central

Many older projects (such as those using Hadoop 0.20 or early versions of Mahout) explicitly require asm-3.1.jar . Using a newer version (like 4.0 or 9.x) can often lead to NoSuchMethodError or IncompatibleClassChangeError due to breaking changes in the API. How to Download ASM 3.1.jar

Understanding and Downloading ASM 3.1: A Core Library for Java Bytecode Manipulation