I think Eclipse is creating a shaded jar, means a jar which contains all
external jars.
So you would have to download these jars and include their content in your
final archive.
You could use <zipfileset> for getting their content
<jar destfile="myjar.jar">
<fileset dir="classes"/>
<zipfileset src="lib/dependency1.jar"/>
Jan
Von: Dennis Putnam [mailto:d...@bellsouth.net]
Gesendet: Donnerstag, 28. Februar 2019 10:53
An: user@ant.apache.org
Betreff: AW: Javac Run By Ant Script is Unable to Find External Jars
I've figured out what the problem is but I don't know what to do to fix it.
When I export the jar from Eclipse, it has this set of directories:
KCBSEvents
META-INF
mozilla
org
src
That is the one that works. When I build the jar using ant (below), these are
the directories present:
KCBSEvents
META-INF
It is obvious now what the problem is. I just need to know how to get ant to
include those same directories.
On 2/21/2019 10:18 AM, Dennis Putnam wrote:
I found an article on adding Maven dependencies to my ant script. While I'm
getting a successful build but the same exception when I run the jar, I hope
this is getting me closer. At least the pom.xml is in the build. I am wondering
if the added fileset is right and working. Here is my latest:
<?xml version="1.0" encoding="UTF-8"?>
<project name="KCBSEvents" default="jar" basedir="."
xmlns:artifact="antlib:org.apache.maven.artifact.ant">
<property name="build.properties" value="build.properties"/>
<property name="resources" value="resource" />
<property name="jardir" value="KCBSEvents" />
<property name="KCBSDir" value="src/KCBSEvents" />
<property name="member.number" value="000000" />
<property name="member.name" value="" />
<property name="jarpath" value="/${user.home}/.m2/repository" />
<path id="maven-ant-tasks.classpath"
path="/lib/jvm-exports/maven-ant-tasks-2.1.3.jar" />
<typedef resource="org/apache/maven/artifact/ant/antlib.xml"
uri="antlib:org.apache.maven.artifact.ant"
classpathref="maven-ant-tasks.classpath" />
<artifact:pom id="pomfile" file="pom.xml" />
<artifact:dependencies filesetId="mvn-dependencies" pomRefId="pomfile"
/>
<path id="compile-jars">
<multirootfileset
basedirs="${jarpath}/commons-io/2.5,${jarpath}/httpcomponents-client,${jarpath}/commons-logging/1.2,${jarpath}/commons-codec/1.10,/lib/java-ext/json-simple-1.1.1">
<include name="commons-io-2.5.jar" />
<include name="httpclient-4.5.6.jar" />
<include name="httpcore-4.4.10.jar" />
<include name="commons-logging-1.2.jar" />
<include name="commons-codec-1.10.jar" />
<include name="json-simple-1.1.1.jar" />
</multirootfileset>
<fileset refid="mvn-dependencies" />
</path>
<target name="checkOS">
<condition property="isWindows">
<os family="windows" />
</condition>
<condition property="isLinux">
<os family="unix" />
</condition>
</target>
<target name="if_windows" depends="checkOS" if="isWindows">
<property name="jarfile" value="C:\temp\KCBSEvents.jar" />
<property name="antcontrib" value="H:\html\Applets\ant-contrib"
/>
</target>
<target name="if_linux" depends="checkOS" if="isLinux">
<property name="jarfile"
value="/tmp/${member.number}/KCBSEvents.jar" />
<property name="antcontrib"
value="/var/www/html/Applets/ant-contrib/ant-contrib-1.0b3.jar" />
</target>
<target name="setclass" depends="if_linux,if_windows">
<taskdef resource="net/sf/antcontrib/antcontrib.properties">
<classpath>
<pathelement location="${antcontrib}" />
</classpath>
</taskdef>
</target>
<target name="incserial" depends="setclass">
<copy todir="bin/${jardir}/${resources}">
<fileset dir="${KCBSDir}/${resources}">
<include name="${build.properties}" />
</fileset>
<filterchain>
<expandproperties />
</filterchain>
</copy>
<if> <isset Property="build.number" /> <then>
<echo message="update build requested" />
</then> <else>
<echo message="new build requested" />
<buildnumber />
</else> </if>
<propertyfile
file="bin/${jardir}/${resources}/${build.properties}">
<entry key="serialnumber" value="${build.number}" />
<entry key="membernumber" value="${member.number}" />
<entry key="name" value="${member.name}" />
</propertyfile>
<echo message="serial number: ${build.number}" />
</target>
<target name="jar" description="Compile serialized jar"
depends="incserial,if_windows,if_linux">
<echo message="Using destination file ${jarfile}" />
<javac srcdir="src" destdir="bin" includeantruntime="false"
classpathref="compile-jars" />
<jar destfile="${jarfile}" basedir="bin"
filesetmanifest="mergewithoutmain">
<manifest>
<attribute name="Manifest-Version" value="1.0"/>
<attribute name="Created-By" value="ant 1.9.2
on CentOS 7" />
<attribute name="Main-Class"
value="KCBSEvents.KCBSEvents" />
</manifest>
</jar>
</target>
</project>
On 2/20/2019 3:22 PM, Jan Matèrne (jhm) wrote:
If you have created your JAR the first step is done.
Starting the JAR could be done in several ways. Common is that you have to have
all external classes on the runtime classpath:
1. Hard coded start script.
Write a bash/bat-Script with the java command with all cp settings, e.g. (bat)
@echo off
java -cp /build/myjar.jar;lib/one.jar;lib/two.jar;lib/three.jar org.acme.Main %*
2. Wrapper script which collects all JARs in a dynamic way (see ant.bat|ant.sh)
3. Use Ant + <java><classpath> for starting
4. Create a runnable JAR which references the external JARs (manifest:
main-class + classpath)
5. Create a shaded jar (uber jar, fat jar): include all classes from external
jars into your jar
6. Use a launcher which uses a dependency manager for getting the classpath
You don't have to replicate path definitions in your buildfile, you could (and
should) use references:
<javac><classpath id="runtime.cp"><fileset dir="lib" includes="**/*.jar"/>…
<java><classpath refid="runtime.cp"/>
You mave have a look at
http://ant.apache.org/manual/tutorial-HelloWorldWithAnt.html
Jan
