Question

To avoid the long class path issue in windows, i modified my build.xml like[1]
introduced a property called “temp” and referring that from “path location”
But now im getting “Class not found” exception[2].
How can i correct my script?

If i don’t use the “temp” property and try to read “temp.classpath” as my “javac” classpath” i get long classpath issue..(That is why i introduced that property and made “javac” path as “javac.classpath”)

[1]
<target name="init">
        <mkdir dir="${class.dir}"/>
        <mkdir dir="./../../work/temp/sampleClient"/>       
          <path id="temp.classpath">        
            <pathelement path="${class.dir}"/>
            <pathelement path="../../lib"/>         
            <fileset dir="../../repository/components/plugins">             
                <include name="*.jar"/>                 
            </fileset>>
            <fileset dir="../../lib">
                <include name="*.jar"/>
            </fileset>
            <fileset dir="../../lib/endorsed">
                <include name="*.jar"/>
            </fileset>
            <fileset dir="../../repository/components/extensions">
                <include name="*.jar"/>
            </fileset>
            <fileset dir="../../repository/components/lib">
                <include name="*.jar"/>
            </fileset>  
             </path>    
        <property name="temp" refid="temp.classpath" />
        <path id="javac.classpath"> 
            <pathelement location="${temp}"/>       
        </path>         
    </target>


[2]

init:

compile:

stockquote:
     [java] java.lang.NoClassDefFoundError: samples/userguide/StockQuoteClient
     [java] Caused by: java.lang.ClassNotFoundException: samples.userguide.StockQuoteClient
     [java]     at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
     [java]     at java.security.AccessController.doPrivileged(Native Method)
     [java]     at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
     [java]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

Answer 1

In ANT to avoid long classpath issue there is ManifestClasspath task available ..I used that and now it is working properly in windows and linux..
I have written a blog[1] entry here with the sample..If anyone find it useful..

http://vvratha.blogspot.com/2012/04/avoiding-long-classpath-issue-in-ant.html