Newbie question: Error: Could not find or load main class ...

[Serge Behar]

Hi,

I can run class files created with rhino. I can compile, in debian the compiler is named rhino-jsc, it took me a while to find it out.

It runs without errors but when i tried to run the class with "java Hello" file i get a message "Error: Could not find or load main class Hello".

Do I have to declare a package name or a main method in Rhino? How?

Thanks

[Gregory Brail]

"jsc" compiles a single script to a single "Script" object that you can load from a .class file and launch as part of a Java app. But the generated code doesn't generate a "main" as you describe.

Jsc does have a facility for you to implement a main method that you write yourself in Java using a different class. Take a look at the "--main-method-class" option.

Indeed it might be interesting to explore how hard it'd be to give jsc the option to generate a "main" that just calls your script and then exits, but it takes a little more work today.

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[Serge Behar]

Thanks, it makes sense.

Another question how do I set the package name for a class in a .js Rhino file. In other words how do i import the class generated from a regular java file?. 

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[Gregory Brail]

it looks like the "-o" option does that, as per the "-h" (help) output from the tool.

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[Serge Behar]

Thanks, I will research more.