Hi Sam, I Am Not A Lambdas Expert (IANALE) but assuming they go with an invokedynamic implementation (which at this stage is likely for performance reasons) then there won't be the possibility of having 1.5 compatibility, unless of course they have a separate anonymous inner class implementation for older versions of Java.
Either way, best place to ask this Q is on the lambda-dev OpenJDK mailing list. Cheers, Martijn On 6 March 2012 04:22, Sam Reid <[email protected]> wrote: > I compiled my first lambda expression (function literal) using javac from > OpenJDK 8, and it was very nice. However, we have many (more than a > thousand) clients who are still living with JRE 5, and I don't want to drop > support for them or force them to upgrade. I tried specifying -target 1.5, > but it said targeting 1.5 was not supported if lambda expressions were in > the code. Do you know of any ways I will be able to use lambda expressions > in Java and still being able to accommodate my 1.5 clients? I recall > something from years ago called RetroWeaver that let you use 1.5 features > (generics, boxing) and back-compile to run on 1.4 runtime. Are there any > equivalent tools that will let me use Java 1.7 on 1.5 runtime? Or do you > know any other ways around this? > > Thanks! > Sam > > -- > You received this message because you are subscribed to the Google Groups > "The Java Posse" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/javaposse/-/mncTZ2GGz6cJ. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/javaposse?hl=en. -- You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/javaposse?hl=en.
