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Yes, if you can work out what the anonymous class does you can rewrite it as top level class.

Unfortunately, I can't help you do this unless I'm confident you aren't infringing someone's license.

Decompilers can often struggle to successfully decompile anonymous inner classes.

Can't you get the original source?
Do you have the legal right to decompile this code, doing this often breaches...

I think you need to explain what you were trying to do when you wrote the line:
_cls1 _lcls1 = new Object() /* anonymous class not found*/
class _anm1 {}

;This isn't legal Java...

Post the relevant code in code tags and post the compiler message(s) and I'll look at it for you..