新闻 JRuby 9.0.0.0-pre2 发布，Ruby 的 Java 解释器 下载

JRuby 社区很高兴的宣布 JRuby 9.0.0.0-pre2 发布了：

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  首页: http://www.jruby.org/
  
  
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  下载地址: http://www.jruby.org/download
  

JRuby 9000 是全新的 JRuby 版本，经过多年的开发和大规模重构子系统后推出。

JRuby 9000 的主要新特性：

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  兼容 Ruby 2.2
  
  
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  基于传统编译器设计的新的优化后的运行时
  
  
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  新的 POSIX 友好的 IO 和进程
  
  
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  来自 MRI 的完全可移植的编码和转码逻辑
  

Ruby 2.2 的特性中这个版本 JRuby 尚未实现的还有：

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  Refinements (partially finished) #1062
  
  
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  Kernel#spawn close-on-exec support
  
  
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  ObjectSpace::WeakMap#each and Enumerable inclusion
  
  
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  Thread#handle_interrupt is not yet fully functional
  

与 Pre1 版本比较，值得关注的变化是：

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  Startup time has improved but is a tiny bit slower than 1.7.x.
  
  
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  Memory usage has improved but still a ways to go.
  
  
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  Straight-line performance has improved since pre1
  
  
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  Windows support improved, but still needs further work and testing
  
  
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  Many keyword arguments problems fixed
  
  
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  88 issues fixed for 9.0.0.0.pre2
  

Truffle


JRuby 9000 包含一个开发中的支持 Truffle 语言实现框架和来自 Oracle 实验室的 Graal VM。详情请看 JRuby Wiki.

Github Issues resolved for 9.0.0.0.pre2

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  #2864 - Prepend breaks module "implementer" search
  
  
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  #2847 - JRuby not using UTF-8 for source files
  
  
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  #2846 - Psych dependency is installing non-JRuby version
  
  
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  #2842 - Hash#each_pair should be a true alias of Hash#each
  
  
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  #2840 - jrubyc blows with NPE
  
  
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  #2833 - Bad nonlocal return with re-wrapped define_method block
  
  
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  #2797 - Support respond_to_missing? in respondsTo() lookups
  
  
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  #2788 - Autoload broken by path canonicalization
  
  
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  #2787 - Returns nil instead of regex match group inside conditional
  
  
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  #2784 - rindex() fails on strings read from binary files
  
  
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  #2777 - Undefined group option during parse of mri/test_regexp.rb
  
  
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  #2776 - IR improperly masks errors in defined-guarded conditional
  
  
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  #2771 - unknown type of %string
  
  
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  #2767 - Open3.popen3 treats string command differently than MRI
  
  
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  #2766 - Open3.capture2e fails with "wrong exec option"
  
  
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  #2764 - Encoding::Converter#primitive_convert has trailing null byte
  
  
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  #2752 - JRuby doesn't define Process::Tms like MRI does
  
  
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  #2751 - Make RUBY_ENGINE_VERSION as companion to RUBY_ENGINE
  
  
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  #2736 - early return in each'd enumerator is jumping out of each and not method
  
  
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  #2726 - how do I install with Jars? Re: "deprecated. use instead jars/installer" message
  
  
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  #2716 - rb_cmpint difference from MRI
  
  
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  #2712 - Micro bench is nearly 2x slower with JIT than interp
  
  
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  #2692 - Fix for issue 2591 on master : double-quoted UTF8 hash key encoding
  
  
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  #2654 - Truffle - Compile Error until when break in case statement
  
  
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  #2652 - Truffle - Regex Parsing Error
  
  
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  #2637 - Produce a warning on private attribute accessors
  
  
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  #2636 - Fix Bignum's bitwise operations
  
  
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  #2635 - Object.const_get behaves differently from other implementations
  
  
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  #2629 - Mixed-mode execution exposes an unusual bug
  
  
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  #2627 - $stdin.tty? reports wrong value on JRuby-9.0.0.0-pre1
  
  
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  #2623 - error with bin/jruby -S gem install asd
  
  
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  #2615 - Open3 fails with ArrayStoreException after ~50 executions
  
  
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  #2598 - Unknown error in child-process gem when trying to open phantomjs browser in webdriver when running on jruby
  
  
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  #2593 - Fix IO#write frozen string issue in textmode
  
  
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  #2591 - double-quoted UTF8 hash key has the wrong encoding
  
  
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  #2589 - Fixed the errors with RubySpec
  
  
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  #2587 - simplecov triggers load error when running coverage on jruby-9.0.0.0.pre1
  
  
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  #2585 - JavaSupport refactoring API (byte-code) incompatibility with extensions
  
  
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  #2584 - Fixed arity issue with RubyMethod
  
  
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  #2583 - Make filepaths with null byte fail
  
  
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  #2581 - Error handling converting UTF-32 to UTF-8 is broken [9k] [lotus]
  
  
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  #2580 - Different Encoding behavior from all other Rubies
  
  
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  #2579 - Fix for issue 2182 on master : Struct#inspect with utf8 encode string member
  
  
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  #2578 - Binding#receiver is not implemented [9k] [lotus]
  
  
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  #2576 - Fix the bug with size with each_slice without block
  
  
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  #2574 - Parallel value assignment broken in IR builder (multi-value literals, calls, attr-assign, etc.)
  
  
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  #2570 - ClassCastException requiring minitest with JRuby 9000
  
  
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  #2569 - Fix required arguments for File.chown
  
  
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  #2568 - Exit iterator when `RubyHash#any?` short-circuits
  
  
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  #2562 - Skip block-to-proc conversion for explicit block syntax when possible
  
  
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  #2560 - Fix uninitialized usage of File::Stat
  
  
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  #2553 - Mismatch on Enumerator#size result between JRuby and MRI
  
  
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  #2547 - Dir.foreach does not allow encoding
  
  
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  #2541 - JRuby+Truffle: Keyword Arguments - "illegal recursive call"
  
  
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  #2540 - Fixed arity require in case of required keyword arguments
  
  
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  #2537 - Fix for issue 2524 on master: [BigDecimal] Loss of precision with different execution order
  
  
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  #2525 - undefined method `invoke_with_build_args' for nil:NilClass on Windows 7
  
  
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  #2524 - [bigdecimal] Loss of precision with different execution order
  
  
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  #2523 - Modified the make_wstr method so that it appends a null character.
  
  
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  #2522 - Implement pack & unpacking ipv6 address in sockaddr
  
  
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  #2521 - Require order appears to impact JRuby extensions [9k]
  
  
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  #2518 - Keyword arguments incompatibility
  
  
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  #2514 - Getting "BUG: $! and exception are not matching up" in RSpec in 9K
  
  
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  #2512 - keyword arguments incompatibilities
  
  
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  #2511 - Keyword method parameters cannot take a frozen hash
  
  
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  #2505 - IO.popen cannot run 'date' on Windows 7
  
  
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  #2500 - gem install failure on Windows
  
  
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  #2494 - Open3 fails with varying signals on 9.0.0.0.pre1
  
  
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  #2493 - Performance issue with invokedynamic + Rack + URI
  
  
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  #2492 - Implemented support for keyword and keywordrest proc /lambda parameters
  
  
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  #2491 - Minitest rails not working on 9000
  
  
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  #2489 - Proc.parameters return an empty array
  
  
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  #2486 - Implemented Enumerator#feed method
  
  
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  #2474 - truffle artifacts are not on maven central and we have a release repo in jruby-parent.pom
  
  
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  #2466 - Package Truffle stdlib files into tarball
  
  
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  #2388 - IO#ready? returns incorrect results
  
  
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  #2357 - NULL handling inconsistent with Ruby
  
  
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  #2312 - Encoding.compatible? affected by call order
  
  
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  #2210 - Fix for issue 1069 and 1390 on master: improve handling of non ascii character after backslash
  
  
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  #2185 - Bundle fails with Java::JavaLang::StackOverflowError with git-hosted gems
  
  
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  #2165 - Truffle: Kill all other threads when the main thread exits
  
  
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  #2163 - StringLiteral consumers may not be CR-aware
  
  
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  #2137 - Socket.getifaddrs returns incorrect interface list
  
  
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  #2033 - Problem with super not passing params with IR
  
  
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  #2015 - Method keyword arguments are destructive
  
  
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  #1982 - AIOOBE in ThreadContext#postYield
  
  
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  #1395 - Pre-compiled methods do not have AST available for re-compilation
  
  
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  #779 - Output unreliable from spawned processes
  

JRuby 9.0.0.0-pre2 发布，Ruby 的 Java 解释器下载地址