在build.xml中的javac部分添加<compilerarg value=“-XDignore.symbol.file”/>

<!--编译当前扩展的task类-->
<javac fork="no" encoding="UTF-8" executable="${JAVA_HOME}/bin/javac" memoryMaximumSize="1024m" 
source="${javac_source_version}" target="${javac_target_version}" 
destdir="E:/build/bin" debug="on" nowarn="on" deprecation="on" verbose="yes">
	<classpath refid="compile_classpath" />
  	<compilerarg value="-XDignore.symbol.file"/>
	<src path="E:/build/java" />
</javac>

Q.E.D.

知之为知之