As an addendum to the parting message on coin-dev, one of the most popular candidate coin features not included in JDK 7 was some sort of literal syntax for...
As an addendum to the parting message on coin-dev, one of the most popular candidate coin features not included in JDK 7 was some sort of literal syntax for collections, sets, lists, and/or maps. [1] [2]Fortunately, this functionality is approximated in JDK 9 via Stuart Marks' JEP 269: Convenience Factory Methods for Collections which added factory methods named "of" that return immutable collections to the List, Set, and Map interfaces. I've enjoyed using this feature in my...
As an addendum to the parting message on coin-dev, one of the most popular candidate coin features not included in JDK 7 was some sort of literal syntax for collections, sets, lists, and/or maps....
Over the last twelve months or so, one of my projects has been fixing and reviewing fixes of javac lint warnings in the JDK 9 code base (varargs,...
Over the last twelve months or so, one of my projects has been fixing and reviewing fixes of javac lint warnings in the JDK 9 code base (varargs, fallthrough, serial,finally,overrides,deprecation,raw and unchecked) and once a warning category is cleared, making new instances of that category a fatal build error.Ultimately, all the warnings in the jdk repository were resolved and -Xlint:all -Werror is now used in the build.Being involved in fixing several thousand warnings,...
Over the last twelve months or so, one of my projects has been fixing and reviewing fixes of javac lint warnings in the JDK 9 code base (varargs, fallthrough, serial,finally,overrides,deprecation,raw...
As part of milling Project Coin in JDK 9, the try-with-resources statement has been improved. If you already have a resource as a final or effectively final...
As part of milling Project Coin in JDK 9, the try-with-resources statement has been improved. If you already have a resource as a final or effectively final variable, you can use that variable in the try-with-resources statement without declaring a new variable in the try-with-resources statement.For example, given resource declarations like // A final resource final Resource resource1 = new Resource("resource1"); // An effectively final resource Resource resource2 = new...
As part of milling Project Coin in JDK 9, the try-with-resources statement has been improved. If you already have a resource as a final or effectively final variable, you can use that variable in the...
As written up in JEP 182: Policy for Retiring javac -source and -target Options, we're implementing a policy to over time clean up the -source and -target...
As written up in JEP 182: Policy for Retiring javac -source and -target Options, we're implementing a policy to over time clean up the -source and -target portions of javacs command line:Class files going all the way back to version 45.3 generated by JDK 1.0.2 will continue to be recognized by javac when put on the classpath, etc.The never-documented -target options 1.4.1, 1.4.2, and jsr14 have been removed in JDK 8 (8010179).In JDK 8, source and target options for 1.5 and...
As written up in JEP 182: Policy for Retiring javac -source and -target Options, we're implementing a policy to over time clean up the -source and -target portions of javacs command line:Class...
As part of Project Lambda, after discussion with the JSR 335 expert group, we decided to add a FunctionalInterface annotation type to the platform.To a first...
As part of Project Lambda, after discussion with the JSR 335 expert group, we decided to add a FunctionalInterface annotation type to the platform.To a first approximation, functional interfaces are those interface types which define only a single method and are therefore usable in lambda expressions.(There are some tricky details in the definition of a functional interface relating to generics and also some details about excluding from consideration methods defined on...
As part of Project Lambda, after discussion with the JSR 335 expert group, we decided to add a FunctionalInterface annotation type to the platform.To a first approximation, functional interfaces...
One subtask of the JDK migration from the legacy bug tracking system to JIRA was reclassifying bugs from a three-level taxonomy in the legacy system, (product,...
One subtask of the JDK migration from the legacy bug tracking system to JIRA was reclassifying bugs from a three-level taxonomy in the legacy system, (product, category, subcategory), to a fundamentally two-level scheme in our customized JIRA instance, (component, subcomponent).In the JDK JIRA system, there is technically a third project-levelclassification, but by design a large majority of JDK-related bugswere migrated into a single "JDK" project.In the end, over 450 legacy...
One subtask of the JDK migration from the legacy bug tracking system to JIRA was reclassifying bugs from a three-level taxonomy in the legacy system, (product, category, subcategory), to...
I'm pleased to announce the OpenJDK bug database migration project has reached a significant milestone: the JDK has switched from the legacy Sun "bugtraq"...
I'm pleased to announce the OpenJDK bug database migration project has reached a significant milestone: the JDK has switched from the legacy Sun "bugtraq" system to a new internal JIRA instance as the system of record for our bug tracking.This completes the initial phase of the previously described plan of getting OpenJDK onto an externally visible and writable bug tracker. The identities contained in the current system include recognized OpenJDK contributors.The bug...
I'm pleased to announce the OpenJDK bug database migration project has reached a significant milestone: the JDK has switched from the legacy Sun "bugtraq" system to a new internal JIRA instance as...
While certain classes like java.lang.Integer and java.lang.Math have been in the platform since the beginning, that doesn't mean there aren't more enhancements...
While certain classes like java.lang.Integer and java.lang.Math have been in the platform since the beginning, that doesn't mean there aren't more enhancements to be made in such places!For example, earlier in JDK 8, library support was added for unsigned integer arithmetic.More recently, my colleague Roger Riggs pushed a changeset to support integer overflow, that is, to provide methods which throw an ArithmeticException on overflow instead of returning a wrapped...
While certain classes like java.lang.Integer and java.lang.Math have been in the platform since the beginning, that doesn't mean there aren't more enhancements to be made in such places!For example,...
Among insects, monarch butterflies and dragonflies have the longest migrations; migrating JDK bugs involves a long journey as well! As previously announced by...
Among insects, monarch butterflies and dragonflies have the longest migrations; migrating JDK bugs involves a long journey as well! As previously announced by Mark back in March, we've been working according to a revised plan to transition the JDK bug management from Sun's legacy system to initially an Oracle-internal JIRA instance which is afterward made visible and usable externally. I've been busily working on this project for the last few months and the team has made good...
Among insects, monarch butterflies and dragonflies have the longest migrations; migrating JDK bugs involves a long journey as well! As previously announced by Mark back in March, we've been...
