#1 local variable name "ret" causes a syntax error

[Anonymous]

When I declare a local variable with name "ret" as

.var 2 is ret I from 36 to 39

I get a syntax error. It works with another name, e.g.

.var 2 is result I from 36 to 39

Since I could not find a restriction on the "ret"
identifier, I assume this is an unintented behaviour.

[Jonas Maebe]

The Jasmin parser interprets every string that represents a Java bytecode opcode as a Java bytecode opcode when it appears in a method body.

You can work around this by single-quoting identifiers. I.e., in your case:
.var 2 is 'ret' I from 36 to 39