How to make installer of my java application for linux

I want to make an installer for my java application, I am using Install any where trial version its create an installer but when i installed n execute it, it display that
"unable to locate main class, class must be public n having a public static void main(....) LAX."
while making the installer I specifically mention the main class.....
I tried a lot but getting same error again n again,
Any one has any idea, what went wrong or what should I do to make Installer by using any good tool.
Thanks for every Thing.

After making the installar using InstallAnywhere, when i run the installer it shows the following error....
Unable to locate the application's 'main' class. The class 'wekna.gui.explorer.LoginScreen' must be public and have a 'public static void main(String[])' method. (LAX)
Unable to Launch Java Application: Unable to locate the application's 'main' class. The class 'weka.gui.explorer.LoginScreen' must be public and have a 'public static void main(String[])' method. (LAX)
my main class has syntax public static void main(...) because otherwise java will generate error,
my application is running well with make file but I want to make an installer......

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