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Groovy 2.4.2/2.3.11 发布，JVM 动态脚本语言

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Groovy 2.4.2 发布，此版本现已提供下载：

http://dl.bintray.com/groovy/maven/groovy-binary-2.4.2.zip
http://dl.bintray.com/groovy/maven/groovy-src-2.4.2.zip

更新内容如下：

Bug 修复

[ GROOVY-3519 ] - Compilation error incorrectly thrown for covariant return types when original method is private
[ GROOVY-7008 ] - JsonOutput / Groovy JSON Builder do not escape special characters in map keys
[ GROOVY-7034 ] - groovydoc for package-info embeds doc within the <h2> tag -- creates malformed HTML
[ GROOVY-7045 ] - commands return value false is ignored
[ GROOVY-7047 ] - Static inner class crashes compiler when it references parent's this
[ GROOVY-7182 ] - Static type error when using generic methods and Closures as parameters
[ GROOVY-7191 ] - CompileStatic Will Not Allow Instance Method In Trait To Call Static Method
[ GROOVY-7211 ] - @CompileStatic: A method which has default value parameter and generic return type will cause type checking error
[ GROOVY-7242 ] - calling trait method inside closure causes compiler error when CompileStatic is used
[ GROOVY-7281 ] - IOGroovyMethods.withStream should use the stream type as the ClosureParam, not simply InputStream
[ GROOVY-7290 ] - Shell Does Not Accept Triple Double Quote
[ GROOVY-7299 ] - Cannot create two lists of length 1000
[ GROOVY-7308 ] - Change In MetaClass Behavior
[ GROOVY-7309 ] - Incorrect args processing in GroovyShell.run(Reader, String, List)
[ GROOVY-7310 ] - getGeneratedMethods is missing from the type checking DSL
[ GROOVY-7322 ] - Problem With Static Trait Methods
[ GROOVY-7324 ] - Incomplete generic type inference for list.property notation
[ GROOVY-7327 ] - TypeChecking Error when combining generic method and Java Enum
[ GROOVY-7332 ] - Groovysh help and doc commands should use groovy-lang.org instead of groovy.codehaus.org
[ GROOVY-7333 ] - Incorrect inferred type in instanceof check of array
[ GROOVY-7339 ] - DocGenerator doesn't understand generics placeholders
[ GROOVY-7343 ] - Access to java.lang.Object is forbidden
[ GROOVY-7344 ] - JsonSlurper parses badly formatted numbers.

改进

[ GROOVY-4136 ] - gapi document generation ignores access modifiers set on groovydoc
[ GROOVY-7257 ] - groovydoc's help option is misleading
[ GROOVY-7317 ] - Add primitive array sum() and sum(initialValue)
[ GROOVY-7326 ] - Add FileTreeBuilder
[ GROOVY-7347 ] - Optimize initialization of char constants
[ GROOVY-7348 ] - Primitive char comparisons are not optimized
[ GROOVY-7349 ] - Optimize foreach style loops on arrays

同时还发布了 Groovy 2.3.11 版本，此版本是个维护版本，主要是 bug 修复：

[ GROOVY-7045 ] - commands return value false is ignored
[ GROOVY-7047 ] - Static inner class crashes compiler when it references parent's this
[ GROOVY-7182 ] - Static type error when using generic methods and Closures as parameters
[ GROOVY-7211 ] - @CompileStatic: A method which has default value parameter and generic return type will cause type checking error
[ GROOVY-7308 ] - Change In MetaClass Behavior
[ GROOVY-7310 ] - getGeneratedMethods is missing from the type checking DSL
[ GROOVY-7324 ] - Incomplete generic type inference for list.property notation
[ GROOVY-7332 ] - Groovysh help and doc commands should use groovy-lang.org instead of groovy.codehaus.org
[ GROOVY-7333 ] - Incorrect inferred type in instanceof check of array
[ GROOVY-7343 ] - Access to java.lang.Object is forbidden