Why does my JAR file execute at CMD, but not on double-click?

Question

So I\'ve been writing a simple 3D GUI application that I intended for users to use simply by double-clicking on the JAR file. I got it working perfectly before putting it in

Answer 1

The JAR is executable from CMD. That means the JAR itself is formed correctly. Good.

The only reason to fail now is that double-click produces not a right command. Expected command, as you correctly said, is

java -jar Modeler.jar

But when you associate javaw.exe with a JAR extension, I suspect it executes

javaw Modeler.jar

It is easy to check: make a javajar.cmd file, containing the following

javaw -jar %*

and associate it with JAR. If you app starts OK, I'm right. Otherwise, sorry.