Ant问题：warning: 'includeantruntime' was not set

E:/workspace/webAdmin>ant compile

Buildfile: E:/workspace/webAdmin/build.xml

init:

compile:

[javac] E:/workspace/webAdmin/build.xml:28: warning: 'includeantruntime' was not set,defaulting to build.sysclasspath=last; set to false for repe

atable builds

[javac] Compiling 1 source file to E:/workspace/webAdmin/build/WEB-INF/classes

BUILD SUCCESSFUL

Total time: 1 second

解决：

<javac srcdir="${build.src}" destdir="${build.dest}">

改为

<javac srcdir="${build.src}" destdir="${build.dest}"
includeantruntime="on"/>

答案参考于网络。谢谢同仁。