Convert .jar to .exe using launch4j

Question

I have java project I convert it to .jar file using netbeans Clean & Build, I used cmd to run the .jar file it successfully run without errors, then I want to convert it to .exe file using launch4j but the problem is I have this error:

Executing: C:\Users\LaLa\Desktop\el.exe
Exception in thread "main" java.lang.NoClassDefFoundError: com/toedter/calendar/JDateChooser
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
    at java.lang.Class.privateGetMethodRecursive(Unknown Source)
    at java.lang.Class.getMethod0(Unknown Source)
    at java.lang.Class.getMethod(Unknown Source)
    at sun.launcher.LauncherHelper.validateMainClass(Unknown Source)
    at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.toedter.calendar.JDateChooser
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 7 more

What could be the possible error I made? or I shouldn't made to avoid it?

(I'm totally new to java programming, I'd ask you please to write solution in details)

Answer 1

Looks like the required libraries are not in the classpath.

Consider using maven-assembly-plugin , it will produce a single jar-with-dependencies file which can be converted to the .exe .

See also How can I create an executable JAR with dependencies using Maven?

Answer 2

I saved my .exe file in dist folder that contains my .jar file & lib folder. It worked as I wanted. Thanks to All!