蚂蚁构建无效目标发布中的问题

Question

蚂蚁建造中的问题

[javac] Compiling 86 source files to F:\XXX\classes
    [javac] javac: invalid target release: 1.6
    [javac] Usage: javac <options> <source files>
    [javac] where possible options include:
    [javac]   -g                         Generate all debugging info
    [javac]   -g:none                    Generate no debugging info
    [javac]   -g:{lines,vars,source}     Generate only some debugging info
    [javac]   -nowarn                    Generate no warnings
    [javac]   -verbose                   Output messages about what the compiler is doing
    [javac]   -deprecation               Output source locations where deprecated APIs are used
    [javac]   -classpath <path>          Specify where to find user class files
    [javac]   -cp <path>                 Specify where to find user class files
    [javac]   -sourcepath <path>         Specify where to find input source files
    [javac]   -bootclasspath <path>      Override location of bootstrap class files
    [javac]   -extdirs <dirs>            Override location of installed extensions
    [javac]   -endorseddirs <dirs>       Override location of endorsed standards path
    [javac]   -d <directory>             Specify where to place generated class files
    [javac]   -encoding <encoding>       Specify character encoding used by source files
    [javac]   -source <release>          Provide source compatibility with specified release
    [javac]   -target <release>          Generate class files for specific VM version
    [javac]   -version                   Version information
    [javac]   -help                      Print a synopsis of standard options
    [javac]   -X                         Print a synopsis of nonstandard options
    [javac]   -J<flag>                   Pass <flag> directly to the runtime system


BUILD FAILED

蚂蚁源和目标1.6到jdk 1.6的可变路径

Answer 1

您使用的编译器无法进行编译-target 1.6（javac：无效的目标版本：1.6）。您确定使用JDK 1.6吗？也许ant已安装并使用了JDK
1.5。通过在目标中添加以下行来检查使用的Java版本：

<echo message="Using Java version ${ant.java.version}."/>

它输出Ant使用的Java版本。

您可以将编译器设置为使用其他Java版本。您必须使用fork属性来使用外部javac并指定要使用的javac：

<javac srcdir="${src}"
         destdir="${build}"
         fork="yes"
         executable="/opt/java/jdk1.6/bin/javac"
  />

有关详细信息，请阅读javac-task的文档。