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JAR File NoClassDefFoundError

I am trying to build a runnable JAR file of a project by using build.xml file and the prompt code
cd <the directory of you application>
ant -f bin/build.xml jar
But I have exceptions when I run the JAR because I cannot add the external JAR.
the build.xml is as follows:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!--
This file was generated by Jason 1.3.9-alpha
http://jason.sf.net
Ocak 11, 2014 - 01:09:12
-->
<project name ="virtualClassroom"
basedir=".."
default="run">
<property name="mas2j.project.file" value="virtualClassroom.mas2j"/>
<property name="debug" value=""/> <!-- use "-debug" to run in debug mode -->
<property name="build.dir" value="${basedir}/bin/classes" />
<property name="jasonJar" value="C:\Users\Emre\Desktop\MasterThesis-BDI\Jason-1.3.9\Jason-1.3.9\lib\jason.jar"/>
<property name="JavaCsBridgeJar" value="C:\Users\Emre\Desktop\MasterThesis-BDI\virtualClassroom\lib\JavaCsBridge.jar"/>
<path id="project.classpath">
<pathelement location="${basedir}"/>
<pathelement location="${build.dir}"/>
<pathelement location="${JavaCsBridgeJar}"/>
<pathelement location="${jasonJar}"/>
<fileset dir="${basedir}/lib" > <include name="*.jar" /> </fileset>
</path>
<!-- tasks the user can override in his/her c-build.xml script -->
<target name="user-init">
</target>
<target name="user-end">
</target>
<target name="init">
<mkdir dir="${build.dir}" />
<antcall target="user-init" />
</target>
<target name="compile" depends="init">
<condition property="srcdir" value="${basedir}/src/java" else="${basedir}" >
<available file="${basedir}/src/java" />
</condition>
<javac srcdir="${srcdir}" destdir="${build.dir}" debug="true" optimize="true" includeantruntime="false" >
<classpath refid="project.classpath"/>
</javac>
</target>
<target name="jar" depends="compile">
<delete file="${ant.project.name}.jar" />
<copy file="${jasonJar}" tofile="${ant.project.name}.jar" />
<copy file="${JavaCsBridge}" tofile="${ant.project.name}.jar" />
<copy file="${mas2j.project.file}" tofile="default.mas2j" />
<jar update="yes" jarfile="${ant.project.name}.jar" >
<fileset dir="${basedir}">
<include name="**/*.asl" />
<include name="**/*.mas2j" />
</fileset>
<fileset dir="${build.dir}">
<include name="**/*.class" />
</fileset>
<manifest>
<attribute name="Main-Class" value="jason.infra.centralised.RunCentralisedMAS"/>
</manifest>
</jar>
<delete file="default.mas2j" />
</target>
<target name="jnlp" depends="jar" >
<mkdir dir="${basedir}/${ant.project.name}-jws"/>
<java classname="jason.infra.centralised.CreateJNLP"
failonerror="true" fork="yes" dir="${basedir}/${ant.project.name}-jws" >
<classpath refid="project.classpath"/>
<arg line="${ant.project.name} ${mas2j.project.file}"/>
</java>
<copy todir="${basedir}/${ant.project.name}-jws" failonerror="no">
<fileset dir="${basedir}/lib" includes="**/*.jar" />
<fileset dir="${basedir}" includes="${ant.project.name}.jar" />
<fileset dir="C:\Users\Emre\Desktop\MasterThesis-BDI\Jason-1.3.9\Jason-1.3.9/src/images" includes="Jason-GMoreau-Icon.jpg" />
</copy>
<signjar jar="${basedir}/${ant.project.name}-jws/${ant.project.name}.jar" alias="jason"
storepass="rbjhja" keypass="rbjhja" keystore="C:\Users\Emre\Desktop\MasterThesis-BDI\Jason-1.3.9\Jason-1.3.9/src/jasonKeystore" />
<echo message="**" />
<echo message="** Java Web Start application created in directory ${ant.project.name}-jws" />
<echo message="** Update the codebase (in the second line of the .jnlp file)" />
<echo message="** with the URL where you will upload the application." />
<echo message="**" />
</target>
<target name="run" depends="compile" >
<echo message="Running project ${ant.project.name}" />
<java classname="jason.infra.centralised.RunCentralisedMAS"
failonerror="true" fork="yes" dir="${basedir}" >
<classpath refid="project.classpath"/>
<arg line="${mas2j.project.file} ${debug} "/>
<!-- jvmarg line="-Xmx500M -Xss8M"/ -->
</java>
<antcall target="user-end" />
</target>
<target name="clean" >
<delete failonerror="no" includeEmptyDirs="true" verbose="true">
<fileset dir="${basedir}" includes="**/*.class"/>
</delete>
</target>
</project>
Do anyone know what to do?
Thanks

Firstly, you need to tell us exactly which class is giving a NoClassDefFoundError
As a generic answer, the explanation is that the particular class was available during compile time but missing during runtime. This is a common issue with jar executables.
Solution : Either include the missing classes in the jar itself or add those to the system classpath.

Ant + Junit Issues

I am trying to get Junit work with Ant. I have come across questions on the topic. I guess there is some small error somewhere but I can't figure it out. Here is my Build file:
<?xml version="1.0" encoding="UTF-8"?>
<project name="IvleFileSync" default="dist" basedir=".">
<description>
simple example build file
</description>
<!-- set global properties for this build -->
<property name="src" location="src"/>
<property name="build" location="build"/>
<property name="dist" location="dist"/>
<!-- Variables used for JUnit testing -->
<property name="test.dir" location="test" />
<property name="test.report.dir" location="test-reports" />
<path id="junit-classpath">
<fileset dir="${test.dir}">
<include name = "*" />
</fileset>
</path>
<path id="files-classpath">
<fileset dir="/usr/lib" >
<include name="*.jar"/>
</fileset>
</path>
<target name="init">
<!-- Create the time stamp -->
<tstamp/>
<!-- Create the build directory structure used by compile -->
<mkdir dir="${build}"/>
<mkdir dir="${test.report.dir}" />
</target>
<target name="compile" depends="init" description="compile the source " >
<!-- Compile the java code from ${src} into ${build} -->
<javac srcdir="${src}" destdir="${build}">
<classpath>
<path refid="files-classpath" />
</classpath>
</javac>
</target>
<target name="dist" depends="compile"
description="generate the distribution" >
<!-- Create the distribution directory -->
<mkdir dir="${dist}/lib"/>
<!-- Put everything in ${build} into the MyProject-${DSTAMP}.jar file -->
<jar jarfile="${dist}/lib/IvleFileSync-${DSTAMP}.jar" basedir="${build}"/>
</target>
<target name="compile-test" depends="compile" description="compile the tests " >
<!-- Compile the java code from ${src} into ${build} -->
<javac srcdir="${test.dir}" destdir="${build}">
<classpath>
<path refid="files-classpath" />
</classpath>
</javac>
</target>
<target name="test" depends="compile-test" description="Execute Unit Tests" >
<junit printsummary="yes" fork="yes" haltonfailure="yes" showoutput="false">
<classpath >
<path refid="files-classpath" />
<path refid= "junit-classpath" />
</classpath>
<batchtest fork="yes" todir="${test.report.dir}/">
<formatter type="xml"/>
<fileset dir="${test.dir}">
<include name="*Test*.java"/>
</fileset>
</batchtest>
</junit>
</target>
<target name="clean"
description="clean up" >
<!-- Delete the ${build} and ${dist} directory trees -->
<delete dir="${build}"/>
<delete dir="${test.report.dir}" />
<delete dir="${dist}"/>
</target>
</project>
And I have test files in /test directory as well as i have put the jars in ANT_HOME/lib
That does not work and I get this error when I dig up the test-results/....xml
<error message="NewEmptyJUnitTest" type="java.lang.ClassNotFoundException">java.lang.ClassNotFoundException: NewEmptyJUnitTest
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
Thanks for helping me out...

The classpath for the junit task does not include the output of the compile-test target. Use something like the following for the JUnit classpath:
<classpath>
<pathelement path="${build}"/>
<path refid="files-classpath" />
<path refid="junit-classpath" />
</classpath>

You forgot to add your own classes ("build") to the "test" target.

problem running JUnit tests with Ant in Eclipse. Beginner question

I'm learning these days how to use ant to run automated test folowing this tutorial.
I have JUnit in the classpath of my project. All seem to work fine and I can include it in my classes:
import junit.framework.TestCase; //line20
public class SimpleLattice1DTest extends TestCase{
...
}
My build.xml is:
<?xml version="1.0"?>
<project name="Ant-Test" default="compile" basedir=".">
<!-- Sets variables which can later be used. -->
<!-- The value of a property is accessed via ${} -->
<property name="src.dir" location="." />
<property name="build.dir" location="build" />
<property name="dist.dir" location="dist" />
<property name="docs.dir" location="docs" />
<property name="test.dir" location="jlife/tests" />
<property name="test.report.dir" location="test/report" />
<!-- Deletes the existing build, docs and dist directory-->
<target name="clean">
<delete dir="${build.dir}" />
<delete dir="${docs.dir}" />
<delete dir="${dist.dir}" />
</target>
<!-- Creates the build, docs and dist directory-->
<target name="makedir">
<mkdir dir="${build.dir}" />
<mkdir dir="${docs.dir}" />
<mkdir dir="${dist.dir}" />
<mkdir dir="${test.report.dir}" />
</target>
<!-- Compiles the java code (including the usage of library for JUnit -->
<target name="compile" depends="clean, makedir">
<javac srcdir="${src.dir}" destdir="${build.dir}">
</javac>
</target>
<!-- Creates Javadoc -->
<target name="docs" depends="compile">
<javadoc packagenames="src" sourcepath="${src.dir}" destdir="${docs.dir}">
<!-- Define which files / directory should get included, we include all -->
<fileset dir="${src.dir}">
<include name="**" />
</fileset>
</javadoc>
</target>
<!--Creates the deployable jar file -->
<target name="jar" depends="compile">
<jar destfile="${dist.dir}\CoreTest.jar" basedir="${build.dir}">
<manifest>
<attribute name="Main-Test" value="test.CoreTest" />
</manifest>
</jar>
</target>
<!-- Run the JUnit Tests -->
<!-- Output is XML, could also be plain-->
<target name="junit" depends="compile">
<junit printsummary="on" fork="true" haltonfailure="yes">
<formatter type="xml" />
<batchtest todir="${test.report.dir}">
<fileset dir="${src.dir}">
<include name="**/*Test*.java" />
</fileset>
</batchtest>
</junit>
</target>
</project>
When i run it into eclipse I get the following error:
[javac] C:\Documents and
Settings\noname\Documenti\JLife_git\JLife_git\JLife\src\jlife\tests\SimpleLattice1DTest.java:20:
package junit.framework does not exist
[javac] import junit.framework.TestCase;
I suppose there's something wrong with it, but I have no idea. Could someone put me in the right direction?

Your javac target doesn't specify anything apart from the source and target directory - it doesn't add any classpath entries; you'll need to add an entry for the appropriate JUnit jar file. See the javac task documentation for more details. You may want to specify the path to JUnit as a classpath attribute, a nested element, or a reference to a path declared elsewhere.

The eclipse classpath is separate from your ant environment. In your build file, when you call javac you need to supply a classpath attribute.
You can define the classpath at the top of the file with the rest of your properties, like this:
<path id="classpath">
<fileset dir="[path to libraries]" includes="**/*.jar" />
</path>
and then use it in each call to javac by setting the classpathref attribute, like this:
<javac srcdir="${src.dir}" destdir="${build.dir}" classpathref="classpath" />

You need to specify the directory that contains your .class files and your external jars (like junit).
e.g.
<!-- Populates a class path containing our classes and jars -->
<path id="dist.classpath">
<fileset dir="${lib}"/>
<pathelement path="${build}"/>
</path>
<!-- Compile the java code place into ${build} -->
<target name="compile" depends="-dirty" description="Compile the source.">
<javac srcdir="${source}" destdir="${build}" includeantruntime="false">
<classpath refid="dist.classpath"/>
<exclude name="${test.relative}/**/*"/>
</javac>
</target>
Here's the complete file I took that excerpt from in case you need ideas for how to setup other common things (emma, javadoc, etc)
<project name="imp" default="dist" basedir="..">
<description>Buildscript for IMP</description>
<property name="source" location="src"/>
<property name="lib" location="lib"/>
<property name="history" location="test_history"/>
<property name="web-tests" location="/var/www/tests"/>
<property name="web-files" location="/var/www/files"/>
<property name="web-javadoc" location="/var/www/javadoc"/>
<property name="web-emma" location="/var/www/emma"/>
<property name="emma.dir" value="${lib}"/>
<property name="test" location="${source}/imp/unittest"/>
<property name="test.relative" value="imp/unittest"/>
<property name="javadoc-theme" value="tools/javadoc-theme"/>
<!-- directories for generated files -->
<property name="build" location="build"/>
<property name="build-debug" location="debug"/>
<property name="build-coverage" location="coverage"/>
<property name="dist" location="dist"/>
<property name="reports" location="reports"/>
<property name="coverage-emma" location="${reports}/coverage/emma"/>
<!-- Populates a class path containing our classes and jars -->
<path id="dist.classpath">
<fileset dir="${lib}"/>
<pathelement path="${build}"/>
</path>
<path id="debug.classpath">
<fileset dir="${lib}"/>
<pathelement path="${build-debug}"/>
</path>
<!-- import emma. This classpath limits the coverage to just our classes -->
<path id="debug.imp.classpath">
<pathelement path="${build-debug}"/>
</path>
<taskdef resource="emma_ant.properties" classpathref="debug.classpath"/>
<!--
Shouldn't ever need to use this from the command line. IRC saith that the "private"
internal use only sort of targets are prefixed with '-'.
dirty because it's the opposite of the 'clean' target.
-->
<target name="-dirty">
<tstamp/>
<mkdir dir="${build}"/>
<mkdir dir="${build-debug}"/>
<mkdir dir="${build-coverage}"/>
<mkdir dir="${dist}"/>
<mkdir dir="${reports}"/>
<mkdir dir="${coverage-emma}"/>
</target>
<!-- clean up all the generated files and direcories -->
<target name="clean" description="Deletes all files and directories created by this script.">
<delete dir="${build}"/>
<delete dir="${build-debug}"/>
<delete dir="${build-coverage}"/>
<delete dir="${dist}"/>
<delete dir="${reports}"/>
<delete dir="${coverage-emma}"/>
</target>
<!-- Compile the java code place into ${build} -->
<target name="compile" depends="-dirty" description="Compile the source.">
<javac srcdir="${source}" destdir="${build}" includeantruntime="false">
<classpath refid="dist.classpath"/>
<exclude name="${test.relative}/**/*"/>
</javac>
</target>
<!-- Compile the java code with debug info place into ${build} -->
<target name="compile-debug" depends="-dirty" description="Compile the source with debug information.">
<javac
srcdir="${source}"
destdir="${build-debug}"
includeantruntime="false"
debug="true"
debuglevel="lines,vars,source"
>
<classpath refid="debug.classpath"/>
</javac>
</target>
<!-- roll up everyting into a single jar file -->
<target name="dist" depends="clean, compile" description="Generate the distribution file for IMP.">
<!-- Copy the library .jars to the directory where the IMP distribution will be located -->
<copy todir="${dist}">
<fileset dir="${lib}"/>
</copy>
<!-- TODO: Generate the MANIFEST.MF file on the fly -->
<jar jarfile="${dist}/imp.jar" basedir="${build}" manifest="tools/MANIFEST.MF"/>
<!-- dump to web server -->
<copy todir="${web-files}">
<fileset dir="${dist}"/>
</copy>
</target>
<!-- build and run the tests then report the results in HTML -->
<target name="test" depends="compile-debug" description="Run all the JUnit tests and outputs the results as HTML.">
<!-- run the tests -->
<junit printsummary="true" haltonerror="false" haltonfailure="false">
<classpath refid="debug.classpath"/>
<formatter type="xml"/>
<batchtest fork="true" todir="${reports}">
<fileset dir="${source}">
<include name="${test.relative}/**/*Test*.java"/>
<exclude name="${test.relative}/**/AllTests.java"/>
</fileset>
</batchtest>
</junit>
<!-- report the results -->
<junitreport todir="${reports}">
<fileset dir="${reports}" includes="TEST-*.xml"/>
<report todir="${reports}"/>
</junitreport>
<!-- update the latest results file to be commited -->
<copy file="${reports}/TESTS-TestSuites.xml" tofile="${history}/test-results-latest.xml"/>
<!-- dump to webserver -->
<copy todir="${web-tests}">
<fileset dir="${reports}"/>
</copy>
</target>
<!-- run emma code coverage tool and publish results in HTML -->
<target name="emma" depends="compile-debug" description="Checks code coverage with Emma.">
<!-- put the magic emma juice into the classes -->
<emma>
<instr
instrpathref="debug.imp.classpath"
destdir="${coverage-emma}/instr"
metadatafile="${coverage-emma}/metadata.emma"
merge="true"
/>
</emma>
<!-- run the tests -->
<junit fork="true" printsummary="true" haltonerror="false" haltonfailure="false">
<classpath>
<pathelement location="${coverage-emma}/instr"/>
<path refid="debug.classpath"/>
</classpath>
<batchtest fork="true" todir="${reports}">
<fileset dir="${source}">
<include name="${test.relative}/**/*Test*.java"/>
<exclude name="${test.relative}/**/AllTests.java"/>
</fileset>
</batchtest>
<jvmarg value="-Demma.coverage.out.file=${coverage-emma}/coverage.emma"/>
<jvmarg value="-Demma.coverage.out.merge=true"/>
</junit>
<!-- publish the coverage report -->
<emma>
<report sourcepath="${source}" verbosity="verbose">
<fileset dir="${coverage-emma}">
<include name="*.emma"/>
</fileset>
<html outfile="${web-emma}/index.html"/>
</report>
</emma>
</target>
<!-- publish javadoc -->
<target name="javadoc" description="Creates javadoc for IMP.">
<delete dir="${web-javadoc}"/>
<javadoc
sourcepath="${source}"
defaultexcludes="no"
destdir="${web-javadoc}"
author="true"
version="true"
use="true"
windowtitle="IMP: Integrated Mechanisms Program"
overview="${source}/overview.html"
classpathref="debug.classpath"
stylesheetfile="${javadoc-theme}/stylesheet.css"
/>
<copy file="${javadoc-theme}/javadoc.jpg" tofile="${web-javadoc}/javadoc.jpg"/>
</target>
<target name="all" description="Runs test, emma, javadoc, and dist targets.">
<antcall target="test"/>
<antcall target="emma"/>
<antcall target="javadoc"/>
<antcall target="dist"/>
</target>
</project>

If you observe the error stack, you will find the following line, just above the error line you mentioned...
[javac] [search path for class files: C:\Program Files\Java\jre6\lib\resource...
This line shows all the jars available in the class path for this ant target execution.
You will definitely not find the desired jar over here i.e. junit-x.x.x.jar (junit-4.8.2.jar)
Now go to eclipse -> Window -> preferences -> Ant -> Runtime -> Global Entries -> Add Jars add junit-4.8.2jar (which you will find in your project lib directory)
If you play around the Ant -> Runtime -> classpath and the classpath related error line in the error stack, you will understand the issue.
Hope this solves your problem.

Hibernate configuration files in an Ant-built WAR file

I have a web app in Eclipse that is working fine. I have built a war file using the ant script below, it works until the program attempts to access Hibernate:
<?xml version="1.0" encoding="UTF-8"?>
<!-- !DOCTYPE removes the warning:
No grammar constraints (DTD or XML schema) detected for the document.
-->
<!DOCTYPE project>
<project name="Audiclave" default="Deploy" basedir=".">
<property name="src.dir" location="src" />
<property name="build.dir" location="build" />
<property name="dist.dir" location="dist" />
<property name="build.classes" location="build/classes" />
<property name="docs.dir" location="docs" />
<property name="web.dir" location="WebContent" />
<!-- Deletes the existing build, docs and dist directory-->
<target name="clean">
<delete dir="${build.classes}" />
<delete dir="${build.dir}" />
<delete dir="${docs.dir}" />
<delete dir="${dist.dir}" />
</target>
<!-- Creates the build, docs and dist directory-->
<target name="makedir">
<mkdir dir="${build.classes}" />
<mkdir dir="${build.dir}" />
<mkdir dir="${docs.dir}" />
<mkdir dir="${dist.dir}" />
</target>
<path id="compile.classpath">
<fileset dir="${web.dir}/WEB-INF/lib">
<include name="*.jar" />
</fileset>
</path>
<target name="compile" depends="clean,makedir">
<javac srcdir="${src.dir}" debug="true" destdir="${build.classes}">
<classpath refid="compile.classpath" />
</javac>
</target>
<!-- Creates Javadoc -->
<target name="docs" depends="compile">
<javadoc packagenames="src" sourcepath="${src.dir}" destdir="${docs.dir}">
<!-- Define which files / directory should get included, we include all -->
<fileset dir="${src.dir}">
<include name="**" />
</fileset>
</javadoc>
</target>
<target name="Deploy">
<war destfile="${build.dir}/audiClave.war" webxml="${web.dir}/WEB-INF/web.xml">
<!-- Include the compiled classes from the compile target -->
<classes dir="${build.classes}" />
<!-- Include any configuration files (hibernate) -->
<fileset dir="${src.dir}" includes="**/*.xml" />
<!-- Include any web content -->
<fileset dir="${web.dir}" />
<lib dir="${web.dir}/WEB-INF/lib" />
</war>
</target>
</project>
The problem I am having is the positioning of the Hibernate config files. In my application they are in :
audiClave\src
but in the deployed app the xml files are in:
audiClave
whereas I think they need to be in :
audiClave\WEB-INF\classes
How do I make the statement:
<fileset dir="${src.dir}" includes="**/*.xml" />
send the files to the WEB-INF\classes directory (if that's where they need to be).
EDIT
Changed the script to include the following and it worked correctly:
<target name="compile" depends="clean,makedir">
<javac srcdir="${src.dir}" debug="true" destdir="${build.classes}">
<classpath refid="compile.classpath" />
</javac>
<copy todir="${build.classes}">
<fileset dir="${src.dir}" includes="**/*.xml,**/*.properties"/>
</copy>
</target>

Ask Ant to <copy> the files into /WEB-INF/classes. You are correct - that's where they belong. Be sure to create the directory path.

Ant+Junit works on first run and never again

Hey guys I've been trying all day to get an ant file to automatically build my project. The file (appended below) was on a web page I found and is pretty thorough.
My problem is that it works as long as I don't run the "clean" target. Once the I run the "clean" target the "test" target ceases to work. I get NoClassFound errors on all test classes. Even though it worked earlier.
I'm working on a Macbook (10.5.8) using the latest version of eclipse. This error occurs running the file from eclipse and from a terminal using Ant version 1.7.1
I modified the file slightly to adapt it to my file structure which is as follows:
src/
packageA.packageB/
ClassA.java
...
ClassN.java
unittests/
packageA.packageB/
AllClassTests.java
ClassATest.java
...
ClassNTest.java
lib/
junit-4.7.jar
The ant file is:
<project name="SampleJUnitTests" default="dist" basedir=".">
<description>
DataTypes Build File
</description>
<!-- set global properties for this build -->
<property name="project_name" value="DataTypes"/>
<property name="src" location="src"/>
<property name="build" location="bin"/>
<property name="dist" location="dist"/>
<property name="lib" location="lib"/>
<property name="reports" location="reports"/>
<property name="tests" location="unittests"/>
<property name="tmp" location="tmp_file"/>
<!-- the names of various distributable files -->
<property name="jar_name" value="${project_name}.jar"/>
<property name="war_name" value="${project_name}.war"/>
<!-- top level targets -->
<target name="compile" depends="init" description="compile the source code " >
<javac srcdir="${src}" destdir="${build}">
<classpath>
<fileset dir="lib">
<include name="**/*.jar"/>
</fileset>
</classpath>
</javac>
</target>
<target name="dist" depends="compile" description="generate the distributable files " >
<!-- Put everything in ${build} into the MyProject-${DSTAMP}.jar file -->
<jar jarfile="${dist}/${jar_name}" basedir="${build}"/>
</target>
<target name="clean" description="clean up" >
<!-- Delete the ${build} and ${dist} directory trees -->
<delete dir="${build}"/>
<delete dir="${dist}"/>
<delete dir="${reports}"/>
<delete dir="${tmp}"/>
</target>
<target name="run-tests" depends="compile" description="run your test suite" >
<junit printsummary="yes" haltonfailure="no" showoutput="yes" tempdir="${tmp}">
<classpath>
<pathelement path="${build}"/>
<fileset dir="lib">
<include name="**/*.jar"/>
</fileset>
</classpath>
<batchtest fork="yes" todir="${reports}/raw/">
<formatter type="xml"/>
<fileset dir="${tests}">
<include name="**/*.java"/>
<exclude name="**/All*Tests.java"/>
</fileset>
</batchtest>
</junit>
</target>
<target name ="test" depends="run-tests">
<junitreport todir="${reports}">
<fileset dir="${reports}/raw/">
<include name="TEST-*.xml"/>
</fileset>
<report format="frames" todir="${reports}\html\"/>
</junitreport>
</target>
<target name ="run" depends="" description="if this project can be run, run it" >
</target>
<!-- supporting targets -->
<target name="init" description="initialize the build environment" >
<!-- Create the time stamp -->
<tstamp/>
<!-- Create directory structures -->
<mkdir dir="${build}"/>
<mkdir dir="${lib}"/>
<mkdir dir="${dist}/lib"/>
<mkdir dir="${reports}"/>
<mkdir dir="${reports}/raw/"/>
<mkdir dir="${reports}/html/"/>
<mkdir dir="${tmp}"/>
</target>
<target name="all" depends="clean, test">
</target>
I give up and hope that someone can shine a light on my problem.
Thanks a lot!

You haven't got any Ant target which builds the test classes. You could do this as part of the compile target if you wanted:
<target name="compile" depends="init" description="compile the source code " >
<javac srcdir="${src}" destdir="${build}">
<classpath>
<fileset dir="lib">
<include name="**/*.jar"/>
</fileset>
</classpath>
</javac>
<javac srcdir="${tests}" destdir="${build}">
<classpath>
<pathelement path="${build}"/>
<fileset dir="lib">
<include name="**/*.jar"/>
</fileset>
</classpath>
</javac>
</target>