A follow-up entry to Dick Wall's Google Group post to my earlier reaction to Java language evolution and management concerns raised in the first twenty minutes...
A follow-up entry to Dick Wall's Google Group post to my earlier reaction to Java language evolution and management concerns raised in the first twenty minutes of episode #277 of the Java Posse podcast.Anyone can have an opinion. Having an informed opinion takes some effort. Implementing the conclusions of an informed opinion can take considerably more effort.Project Coin != http://bugreport.sun.com/bugreport/For many years people with ideas for language changes (and other...
A follow-up entry to Dick Wall's Google Group post to my earlier reaction to Java language evolution and management concerns raised in the first twenty minutes of episode #277 of the Java...
My working on the strings in switch implementation has gotten swapped back in.The implementation is following the translation strategy outlined in the strings...
My working on the strings in switch implementation has gotten swapped back in.The implementation is following the translation strategy outlined in the strings in switch proposal: find a perfect hash function for the input strings and semantically replace case "Foo": with case hash("Foo"): (along with some additional checks and logic) where hash("Foo") is computed as a constant by the compiler.With this approach, to write the regression tests it is helpful to be able to...
My working on the strings in switch implementation has gotten swapped back in.The implementation is following the translation strategy outlined in the strings in switch proposal: find a perfect hash...
Recently I read with interest Bjarne Stroustrup's HOPL III paper Evolving a language in and for the real world: C++ 1991-2006.Despite the numerous technical...
Recently I read with interest Bjarne Stroustrup's HOPL III paper Evolving a language in and for the real world: C++ 1991-2006.Despite the numerous technical differences between Java and C++, I was struck by some of the similarities in community involvement and expectations in the evolution of both languages. Selected excerpts from the paper are in block quotes below.In particular, this very open process [in the C++ committee] is vulnerable to disruptionby individuals whose...
Recently I read with interest Bjarne Stroustrup's HOPL III paper Evolving a language in and for the real world: C++ 1991-2006.Despite the numerous technical differences between Java and C++, I was...
The entry below is a slightly edited copy of a message I used to start a new thread on the Java Posse's Google Group, largely in response to comments make by...
The entry below is a slightly edited copy of a message I used to start a new thread on the Java Posse's Google Group, largely in response to comments make by Dick Wall in the first twenty minutes of episode #277 of the Java Posse podcast.After listening to episode 277, I'm led to conclude I'm thought of bysome as one of the "ivory tower guys" who "just says no" to ideasabout changing the Java programming language.I have a rather different perspective.In November 2006, Sun...
The entry below is a slightly edited copy of a message I used to start a new thread on the Java Posse's Google Group, largely in response to comments make by Dick Wall in the first twenty minutes of...
First, thanks to all those who submitted interesting proposals and thoughtful comments to Project Coin; a demonstrably vibrant community wants to evolve the...
First, thanks to all those who submitted interesting proposals and thoughtful comments to Project Coin; a demonstrably vibrant community wants to evolve the Java programming language!Without further ado, the final Project Coin changes accepted for inclusion in JDK 7 are:Strings in switchAutomatic Resource ManagementImproved Type Inference for Generic Instance Creation (diamond)Simplified Varargs Method InvocationAn omnibus proposal for better integral literalsLanguage support...
First, thanks to all those who submitted interesting proposals and thoughtful comments to Project Coin; a demonstrably vibrant community wants to evolve the Java programming language!Without further...
Elaborating on some slides from a JavaOne talk, the Mandelbrot set is defined recursively as the set of values in the complex plane C where the iterations zn+1...
Elaborating on some slides from a JavaOne talk, the Mandelbrot set is defined recursively as the set of values in the complex plane C where the iterations zn+1 = zn2 + c remain bounded, giving rise to a familiar and complex shape.Determining whether a particular point is inside or outside the boundary of the Mandelbrot set can be difficult because of the fractal nature of the curve; however, good approximations are possible. First at a coarse level, if the absolute value of a...
Elaborating on some slides from a JavaOne talk, the Mandelbrot set is defined recursively as the set of values in the complex plane C where the iterations zn+1 = zn2 + c remain bounded, giving rise...
Paraphrasing some thoughts already sent to the Project Coin list and discussed at JavaOne this year, there continues to be traffic on the list and elsewhere...
Paraphrasing some thoughts already sent to the Project Coin list and discussed at JavaOne this year, there continues to be traffic on the list and elsewhere about the criteria for proposal selection (and non-selection) and those criteria are worth elaborating ahead of the final proposal list being determined in the near future.First, a reminder from some earlier blog entries describing the context for Project Coin:"Especially with the maturity of the Java platform, the onus...
Paraphrasing some thoughts already sent to the Project Coin list and discussed at JavaOne this year, there continues to be traffic on the list and elsewhere about the criteria for proposal...
There are three primary kinds of compatibility of concern when evolving the JDK, source, binary, and behavioral. These can be visualized as defining a three...
There are three primary kinds of compatibility of concern when evolving the JDK, source, binary, and behavioral. These can be visualized as defining a three dimensional space:The farther away a point is from the origin, the more incompatible a change is; the origin itself represents perfect compatibility (no changes).A more nuanced diagram would separate positive and negative compatibility, that is distinguish between keeping things that work working versus keeping things...
There are three primary kinds of compatibility of concern when evolving the JDK, source, binary, and behavioral. These can be visualized as defining a three dimensional space:The farther away a point...
The JDK includes many logically distinct sets of APIs. Some of the APIs naturally live in the JDK and evolve at the pace of the JDK; other APIs are effectively...
The JDK includes many logically distinct sets of APIs. Some of the APIs naturally live in the JDK and evolve at the pace of the JDK; other APIs are effectively maintained externally, but are also shipped as part of the public API provided by the JDK. Two APIs in the latter camp are jaxp and jax-ws, both of which natively live in the GlassFish project. Currently, those components are maintained under separate version control as part of OpenJDK in the jaxp and jax-ws...
The JDK includes many logically distinct sets of APIs. Some of the APIs naturally live in the JDK and evolve at the pace of the JDK; other APIs are effectively maintained externally, but are...
