[jboss-dev] Byteman 1.2.0 release now available

Andrew Dinn adinn at redhat.com
Wed Dec 2 03:57:18 EST 2009

I forgot to add that although I have not yet looked at making Byteman 
work over javassist instead of ASM (thanks Scott for raising the IRA 
issue) I did find and fix a bug in javassist when implementing 
overriding method injection. So, there has been some payoff to the 
javassist project.


Andrew Dinn

On 12/01/2009 06:10 PM, Andrew Dinn wrote:
> Byteman release 1.2.0 has now been released and is available from the
> project downloads page http://www.jboss.org/byteman/downloads.
> This release is primarily a feature upgrade extending the Byteman rule
> language to support two new types of rules:
> interface rules
> -- rule code is injected through an interface into all classes which
> implement the interface
> overriding rules
> -- rule code is injected down class hierarchies into a both the target
> class's method and into the methods of subclasses which provides an
> overriding implementation
> These two new modes of injection may be used in isolation but they also
> work in combination. For example, the following rule adds trace code to
> the run method of every implementor of Runnable and to every overriding
> implementation, effectively tracing every run() operation in the JVM.
> RULE trace any Runnable.run() call
> INTERFACE ^java.lang.Runnable
> METHOD run()
> DO System.out.println("Running runnable " + $0 +
> " " + $0.getClass().getName())
> Full details of the syntax and operation of these two new rule types are
> included in the 1.2.0 programmers guide.
> The release also includes several bug fixes including, most notably, a
> much more reliable implementation of tool bytemancheck, which performs
> offline rule syntax and type checking. Release notes are available from
> the project downloads page http://www.jboss.org/byteman/downloads.

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