eclipse - Create build.xml file independant of the location of the libraries on a computer -

in order generate war file , i've created build.xml file via eclipse. build.xml shown below:

<?xml version="1.0" encoding="utf-8" standalone="no"?> <!-- warning: eclipse auto-generated file.               modifications overwritten.               include user specific buildfile here, create 1 in same               directory processing instruction <?eclipse.ant.import?>               first entry , export buildfile again. --><project basedir="." default="build" name="project">     <property environment="env"/>     <property name="eclipse_home" value="../../../documents/eclipse ee/eclipse/"/>     <property name="debuglevel" value="source,lines,vars"/>     <property name="target" value="1.6"/>     <property name="source" value="1.6"/>     <path id="weblogic system libraries.libraryclasspath">         <pathelement location="../../../../../oracle/middleware/modules/javax.persistence_1.1.0.0_2-0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.oracle.jpa2support_1.0.0.0_2-1.jar"/>         <pathelement location="../../../../../oracle/middleware/wlserver_10.3/server/lib/api.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/glassfish.jstl_1.2.0.1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.jsf_1.1.0.0_1-2.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.ejb_3.0.1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.enterprise.deploy_1.2.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.interceptor_1.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.jms_1.1.1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.jsp_1.3.0.0_2-1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.jws_2.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.activation_1.1.0.0_1-1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.mail_1.1.0.0_1-4-1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.xml.soap_1.3.1.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.xml.rpc_1.2.1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.xml.ws_2.1.1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.management.j2ee_1.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.resource_1.5.1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.servlet_1.0.0.0_2-5.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.transaction_1.0.0.0_1-1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.xml.stream_1.1.1.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.security.jacc_1.0.0.0_1-1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/javax.xml.registry_1.0.0.0_1-0.jar"/>         <pathelement location="../../../../../oracle/middleware/wlserver_10.3/server/lib/wls-api.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.apache_1.3.0.1.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.i18n_1.9.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.logging_1.9.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.utils.full_1.10.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.utils.wrapper_1.4.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.utils.classloaders_2.0.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.common.security.providers.env_1.0.0.0_6-2-0-0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.common.security.saml2.manage_1.0.0.0_6-2-0-0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.weblogic.web.api_1.4.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.weblogic.rmi.client_1.11.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.transaction_2.7.1.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.workarea_1.8.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.xml.weblogic.xpath_1.5.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.datasource6_1.10.0.0.jar"/>         <pathelement location="../../../../../oracle/middleware/modules/com.bea.core.weblogic.stax_1.10.0.0.jar"/>     </path>     <path id="web app libraries.libraryclasspath">         <pathelement location="webcontent/web-inf/lib/log4j-1.2.17.jar"/>     </path>     <path id="ear libraries.libraryclasspath"/>     <path id="project.classpath">         <pathelement location="boum/classes"/>         <path refid="weblogic system libraries.libraryclasspath"/>         <path refid="web app libraries.libraryclasspath"/>         <path refid="ear libraries.libraryclasspath"/>     </path>     <path id="run.test.bootclasspath">         <fileset dir="${java.home}/lib" includes="*.jar"/>         <fileset dir="${java.home}/lib/ext" includes="*.jar"/>         <path refid="weblogic system libraries.libraryclasspath"/>     </path>     <target name="init">         <mkdir dir="boum/classes"/>         <copy includeemptydirs="false" todir="boum/classes">             <fileset dir="client">                 <exclude name="**/*.java"/>             </fileset>         </copy>         <copy includeemptydirs="false" todir="boum/classes">             <fileset dir="test">                 <exclude name="**/*.java"/>             </fileset>         </copy>         <copy includeemptydirs="false" todir="boum/classes">             <fileset dir="src">                 <exclude name="**/*.java"/>             </fileset>         </copy>     </target>     <target name="clean">         <delete dir="boum/classes"/>     </target>     <target depends="clean" name="cleanall"/>     <target depends="build-subprojects,build-project" name="build"/>     <target name="build-subprojects"/>     <target depends="init" name="build-project">         <echo message="${ant.project.name}: ${ant.file}"/>         <javac debug="true" debuglevel="${debuglevel}" destdir="boum/classes" includeantruntime="false" source="${source}" target="${target}">             <src path="client"/>             <src path="test"/>             <src path="src"/>             <classpath refid="project.classpath"/>         </javac>     </target>     <target description="build projects reference project. useful propagate changes." name="build-refprojects"/>     <target description="copy eclipse compiler jars ant lib directory" name="init-eclipse-compiler">         <copy todir="${ant.library.dir}">             <fileset dir="${eclipse_home}/plugins" includes="org.eclipse.jdt.core_*.jar"/>         </copy>         <unzip dest="${ant.library.dir}">             <patternset includes="jdtcompileradapter.jar"/>             <fileset dir="${eclipse_home}/plugins" includes="org.eclipse.jdt.core_*.jar"/>         </unzip>     </target>     <target description="compile project eclipse compiler" name="build-eclipse-compiler">         <property name="build.compiler" value="org.eclipse.jdt.core.jdtcompileradapter"/>         <antcall target="build"/>     </target>     <target name="test">         <java classname="test" failonerror="true" fork="yes">             <classpath refid="project.classpath"/>             <bootclasspath>                 <path refid="run.test.bootclasspath"/>             </bootclasspath>         </java> </target>  <target name="war" description="bundles application war file" depends="clean, build">         <mkdir dir="webcontent/web-inf/classes"/>         <copy includeemptydirs="false" todir="webcontent/web-inf/classes">                 <fileset dir="boum/classes">                 <include name="**/**"/>                 </fileset>         </copy>          <war destfile="boumboum.war"             basedir="webcontent"             needxmlfile="false">         </war>     </target> </project> 

so question is: how can write build.xml file in way independant location of libraries computer ? let's run build file in computer doesn't contains folders oracle/middleware. in case guess wont generate war file. there way make work ? if ,could show me example or point me tutorials it. because i'm new ant.

the third-party libraries can stored

• in shared folder on network
• in source control system (git, svn, perforce)
• in repository (artifactory, nexus)
• etc

before creating war should fetch these libraries (the method depends on solution choose) , place them locally.