How to run the latest ANT with jdeveloper 10.1.2.3

1. Download latest ANT from ant.apache.org web site and unzip it in directory \jdev\lib\apache-ant--bin.
   
   So if your jdev dir is at C:\jdev10.1.2.3\jdev\lib, then and you downloaded ant 1.8.1, then you will have c:\jdev10.1.2.3\jdev\lib\apache-ant-1.8.1-bin
2. Edit \jdev\bin\jdev.conf and comment line that loads ant.jar and load the new ant jar you downloaded. Example below:
   

   #AddJavaLibFile ../lib/ant.jar
   AddJavaLibFile ../lib/apache-ant-1.8.1-bin/lib/ant.jar
   

3. Open file \jdev\lib\libraries.xml and change library "Apache Ant" to include jars in the new ant jar you downloaded. Example below:
   

   <item class="oracle.jdeveloper.library.JLibrary">
   <defaultlibrarydefinition>
   <jdkversion>
   <classpath>
   <entries>
   <item jar-entry="" path="apache-ant-1.8.1-bin\lib\ant.jar"/>
   <item jar-entry="" path="apache-ant-1.8.1-bin\lib\ant-launcher.jar/">
   <item jar-entry="" path="apache-ant-1.8.1-bin\lib\ant-commons-net.jar/">
   <item jar-entry="" path="apache-ant-1.8.1-bin\lib\ant-jsch.jar/">
   <item jar-entry="" path="apache-ant-1.8.1-bin\lib\com.jcraft.jsch_0.1.31.jar"/>
   </entries>
   </classpath>
   <docpath>
   <entries class="[Ljava.net.URL;">
   </docpath>
   <locked>false</locked>
   <sourcepath>
   <entries class="[Ljava.net.URL;">
   </sourcepath>
   </defaultlibrarydefinition>
   <definitionlist class="java.util.ArrayList">
   <locked>true</locked>
   <name>Apache Ant</name>
   </item>