hi, i used the following sample ant script (copied from the doc) to build a
jar. but when i try to run it using java -jar foo.jar, i get the above
error message. i looked at the jar and the manifest has no files in it. is
this a bug in ant? or do i need to invoke the jar in some different manner?
or build the manifest myself? i am using ant 1.4.1 with j2sdk1.4.0
thanks
<project name="MyProject" default="dist" basedir=".">
<!-- set global properties for this build -->
<property name="src" value="."/>
<property name="build" value="build"/>
<property name="dist" value="dist"/>
<target name="init">
<!-- Create the time stamp -->
<tstamp/>
<!-- Create the build directory structure used by compile -->
<mkdir dir="${build}"/>
</target>
<target name="compile" depends="init">
<!-- Compile the java code from ${src} into ${build} -->
<javac srcdir="${src}" destdir="${build}"/>
</target>
<target name="dist" depends="compile">
<!-- Create the distribution directory -->
<mkdir dir="${dist}/lib"/>
<!-- Put everything in ${build} into the MyProject-${DSTAMP}.jar file -->
<jar jarfile="${dist}/lib/MyProject-${DSTAMP}.jar" basedir="${build}"/>
</target>
<target name="clean">
<!-- Delete the ${build} and ${dist} directory trees -->
<delete dir="${build}"/>
<delete dir="${dist}"/>
</target>
</project>
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