Può essere che sia questo pezzo qui?
<target name="-def-build-classes" depends="-def-pcompile">
<macrodef name="build-classes">
<attribute name="includes"/>
<attribute name="excludes" default="${exclude.files} **/package-info.java"/>
<attribute name="classes.dir" default="${build.classes.dir}"/>
<attribute name="gensrc.dir" default="${build.gensrc.dir}"/>
<attribute name="javac.bootclasspath" default="${build.bootstrap.dir}/classes"/>
<attribute name="bootclasspath.opt" default="${javac.bootclasspath.opt}"/>
<attribute name="classpath" default="${javac.classpath}"/>
<attribute name="sourcepath" default="${javac.sourcepath}"/>
<attribute name="java.home" default="${boot.java.home}"/>
<attribute name="source" default="${javac.source}"/>
<attribute name="target" default="${javac.target}"/>
<attribute name="release" default="${release}"/>
<attribute name="full.version" default="${full.version}"/>
<sequential>
<echo level="verbose" message="build-classes: excludes=@{excludes}"/>
<echo level="verbose" message="build-classes: bootclasspath.opt=@{bootclasspath.opt}"/>
<echo level="verbose" message="build-classes: classpath=@{classpath}"/>
<echo level="verbose" message="build-classes: sourcepath=@{sourcepath}"/>
<mkdir dir="@{gensrc.dir}"/>
<mkdir dir="@{classes.dir}"/>
<pcompile srcdir="${src.classes.dir}"
destdir="@{gensrc.dir}"
includes="@{includes}"/>
<copy todir="@{gensrc.dir}">
<fileset dir="${src.classes.dir}" includes="@{includes}"/>
<globmapper from="*.properties-template" to="*.properties"/>
<filterset begintoken="$(" endtoken=")">
<filter token="JDK_VERSION" value="${jdk.version}"/>
<filter token="RELEASE" value="@{release}"/>
<filter token="FULL_VERSION" value="@{full.version}"/>
</filterset>
</copy>
<pcompile srcdir="@{gensrc.dir}"
destdir="@{gensrc.dir}"
includes="**/*.properties"/>
<javac fork="true"
executable="@{java.home}/bin/javac"
srcdir="${src.classes.dir}:@{gensrc.dir}"
destdir="@{classes.dir}"
includes="@{includes}"
excludes="@{excludes}"
sourcepath="@{sourcepath}"
classpath="@{classpath}"
includeAntRuntime="no"
source="@{source}"
target="@{target}"
debug="${javac.debug}"
debuglevel="${javac.debuglevel}">
<compilerarg value="-implicit:none"/>
<compilerarg value="-Xprefer:source"/>
<compilerarg value="-J-Xbootclasspath/p:@{javac.bootclasspath}"/>
<compilerarg line="@{bootclasspath.opt}"/>
<compilerarg line="${javac.no.jdk.warnings}"/>
<compilerarg line="${javac.version.opt}"/>
<compilerarg line="${javac.lint.opts}"/>
</javac>
<copy todir="@{classes.dir}" includeemptydirs="false">
<fileset dir="${src.classes.dir}" includes="@{includes}" excludes="@{excludes}">
<exclude name="**/*.java"/>
<exclude name="**/*.properties"/>
<exclude name="**/*-template"/>
<exclude name="**/package.html"/>
</fileset>
</copy>
</sequential>
</macrodef>
</target>
Devo aggiungere un compilerarg value?