Thread: Could not find main class error

I currently use Eclipse to maintain our Java application. I recently upgraded from Java 6 to Java 7. I updated my Eclipse projects to use the Java 7 .jar files. I can run the application from Eclipse via the Run Configuration. I can also run the Ant build and it completes successfully. When I install the application on my desktop, I receive the "Java Virtual Machine Launcher: Could not find main class..." error. My CLASSPATH is set to ".". I've searched for a resolution for the past 2 weeks without any luck. Any help is much appreciated.

Thanks,

Keith Shaffer

When I run the Ant build, it creates an executable installer. For example: Installer.exe. It writes the installer to the correct mapping location that I have setup within Eclipse. I then go to the location and run the install executable. This executable writes the application executable, XXXX.exe to the correct location and also creates a shortcut on the desktop. When I double click on the desktop icon, I receive the error.

Norm, I've only run the application from the .exe. If I were to navigate to the location of the .jar file that holds the main class and execute the following: java -jar BOLO-UI.jar I receive the following error:


C:\Program Files (x86)\BOLO by P2 Energy Solutions\BOLO UI Development 13.0.0.1\
bololib>java -jar BOLO-UI.jar
Exception in thread "main" java.lang.NoClassDefFoundError: com/jidesoft/action/D
efaultDockableBarHolder
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :800)
at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:14
2)
at java.net.URLClassLoader.defineClass(URLClassLoader .java:449)
at java.net.URLClassLoader.access$100(URLClassLoader. java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 361)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:4 25)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 58)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.ja va:2570)
at java.lang.Class.getMethod0(Class.java:2813)
at java.lang.Class.getMethod(Class.java:1663)
at sun.launcher.LauncherHelper.getMainMethod(Launcher Helper.java:494)
at sun.launcher.LauncherHelper.checkAndLoadMain(Launc herHelper.java:486)

Caused by: java.lang.ClassNotFoundException: com.jidesoft.action.DefaultDockable
BarHolder
at java.net.URLClassLoader$1.run(URLClassLoader.java: 366)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:4 25)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 58)
... 18 more

C:\Program Files (x86)\BOLO by P2 Energy Solutions\BOLO UI Development 13.0.0.1\
bololib>

The BOLO-UI.jar file has the main class in it.