[jboss-dev] Byteman 2.1.2 has been released

Byteman 2.1.2 is now available for download. You can obtain a copy either as a binary-only or full-source zip from the project downloads page or you can depend upon the version available in the Maven Central repository. Byteman 2.1.2 is for the most part a maintenance update to release 2.1.0, fixing about half a dozen bugs. However, it does include a few new features. In particular: Allow downcasts when initialising local vars in the BIND clause Support computing object size as a standard method in Helper Downcasting is particularly helpful when dealing with generic types when you know that a specific type parameter is used. For example when injecting into this class class Foo { void foo(List names) . . . } downcasting allows you to bind elements of the argument list using the type String rather than the generic type Object RULE access name as a name CLASS Foo METHOD foo BIND first : String = $names.get(0); second : String = $names.get(1); IF first == "Andrew" && second == "Dinn" DO throw new Exception("Won't get fooed again!") ENDRULE Of course, Byteman performs a checkcast before binding the variables so when the rule executes if you try to downcast a value which is not an instance of the subtype your program will see a ClassCastException. If you want to disable downcasting and revert to the old behaviour where the type checker flags this as a type error the simply set system property org.jboss.byteman.disallow.downcasts in the JVM running the Byteman agent.