How to set classpath in ant correctly?

Question

I have my single dependency on path projectRoot/lib/jsoup.jar.

My build.xml is simple:

<project name="Ant-Demo" default="main" basedir=".">

    <property name="src.dir" value="src" />
    <property name="build.dir" value="buildDirectory" />
    <property name="dist.dir" value="dist" />
    <property name="docs.dir" value="docs" />
    <property name="lib.dir" value="lib" />

    <path id="build.classpath">
        <pathelement location="lib/jsoup-1.7.3.jar"/>
    </path>

    <target name="compile" depends="clean,makedir">
        <javac srcdir="${src.dir}" destdir="${build.dir}" classpathref="build.classpath" />
    </target>

    <target name="jar" depends="compile">
    <jar destfile="${dist.dir}/AntDemo,jar" basedir="${build.dir}">
        <manifest>
            <attribute name="Main-Class" value="ant.test" />
        </manifest>
    </jar>
</target>
    ...........................................

This doesn't work, because jsoup.jar is not included in final AntDemo.jar.

EDIT When compile target is running the output has warning:

compile:
    [javac] D:\Software\es_ws\AntDemo\build.xml:30: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
    [javac] Compiling 2 source files to D:\Software\es_ws\AntDemo\buildDirectory

What does this warning mean?

Thank you!

You need to create an executable jar by including a "Class-Path" entry in your jar's manifest. For an example see: http://stackoverflow.com/questions/3143567/cannot-find-main-class-in-file-compiled-with-ant/3144290#3144290 — Mark O'Connor, Jun 06 '14 at 19:28

F.Rosado · Answer 1 · 2021-06-02T13:37:31.117

2

If you need that the content of jsoup.jar is included on your AntDemo.jar you can do it on several ways. My suggestion is use this solution:

<jar destfile="${dist.dir}/AntDemo.jar" >
    <manifest>
        <attribute name="Main-Class" value="ant.test" />
    </manifest>
    <fileset dir="${build.dir}" />
    <zipfileset includes="**/*.class" src="lib/jsoup-1.7.3.jar" />
</jar>

edited Jun 02 '21 at 13:37

answered Jun 05 '14 at 16:29

F.Rosado

487
4
20

It is good to copy extracted class files into destination jar. – Volodymyr Levytskyi Jun 05 '14 at 16:34

score 1 · Accepted Answer · answered Jun 05 '14 at 15:49

1

When you compile classes and specify a classpath, the classes and other resources in that javac classpath don't get copied over to the destination, in ant or in typical command line javac. You need to copy them over manually, or in ant with a copy or other means.

answered Jun 05 '14 at 15:49

Sotirios Delimanolis

274,122
60
696
724

– Volodymyr Levytskyi Jun 05 '14 at 16:07
@Volodia A warning is not always critical. http://stackoverflow.com/questions/5103384/ant-warning-includeantruntime-was-not-set – Sotirios Delimanolis Jun 05 '14 at 16:19

How to set classpath in ant correctly?

2 Answers2