title: JAR main class not found problem
body: <p>I have to create a JAR file (without using any IDE)</p>
  
  <p>That's what I'm doing:</p>
  
  <p>I got a folder named Project, this is the main one, in this one i two folders and a pdf file.</p>
  
  <p>one named <strong>ClassFiles</strong> that contains all the ".class" files of my project</p>
  
  <p>the other one named <strong>JavaFiles</strong> that contains all the ".java" files.</p>
  
  <p>the file is a relation that i have to include, nothing relevant though, and is called Info.pdf.</p>
  
  <p>The error i have is this:</p>
  
  <p>My main class (is redundant, i mean the starting one, with "public static void main(String[] args)") is called <strong>Main</strong></p>
  
  <p>the command line i'm using is:</p>
  
  <p><code>jar -cfe Project.jar ClassFiles.Main JavaFiles ClassFiles INFO.pdf</code></p>
  
  <p>i get the error <code>Could not find the main class: ClassFiles.Main. Program will exit</code></p>
  
  <p>PS: in the ClassFiles folder i have a lot of classname$1, classname$2 files. i don't know if it's relevant. I even have the <strong>Main</strong> with and another <strong>Main$1</strong>. </p>
  
  <p>I need to give this JAR tomorrow, so i'm quite desperate.</p>
  
  <p>Thank you in advance!</p>
  
  <pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: ClassFiles/Main (wrong name: Main)
  
      at java.lang.ClassLoader.defineClass1(Native Method)
      at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
      at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
      at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
      at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
      at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
  Could not find the main class: ClassFiles.Main. Program will exit
  </code></pre>
  
  <p>@erikson:
  ClassFiles is just a folder i made to contain all the .class, nothing more... there is no package in what i did (it was the default one when i used Eclipse)</p>
  
  <p>@ Dave Newton: sorry man, (first of all thank you), could u be a little more specific? i'm not understanding what i should do. i'm not really good with this stuff</p>
  
  <p>ah, if you mean that the package is not called Project but Progetto is just becouse i translated it in english. not sure if that's what you are referring too.</p>
  
  <p>I have the Main.class in the ClassFiles directory and Main.java in the JavaFiles dir</p>
  
  <p>That's exactly what i did and the result:</p>
  
  <p>ascal@AscaL ~/Desktop/Progetto $ jar -cfe Progetto.jar ClassFiles.Main ClassFiles JavaFiles Info.pdf</p>
  
  <p>ascal@AscaL ~/Desktop/Progetto $ java -jar Progetto.jar</p>
  
  <p>Exception in thread "main" java.lang.NoClassDefFoundError: ClassFiles/Main (wrong name: Main)
      at java.lang.ClassLoader.defineClass1(Native Method)
      at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
      at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
      at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
      at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
      at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:266)</p>
  
  <p>Could not find the main class: ClassFiles.Main. Program will exit.</p>
  
  <p>//Code of Main.java</p>
  
  <p><a href="http://pastebin.com/Xh9emcYH" rel="nofollow">http://pastebin.com/Xh9emcYH</a></p>