A DESCRIPTION OF THE PROBLEM :
The disambiguation procedure for the nesting of casts and other unary expressions in the Java Language Specification (§15.15) is inconsistent. The given rationale ...

"The result of the + operator must be numeric, and all type names involved in casts on numeric values are known keywords. Thus, if p is a keyword naming a primitive type, then (p)+q can make sense only as a cast of a unary expression. However, if p is not a keyword naming a primitive type, then (p)+q can make sense only as a binary arithmetic operation. Similar remarks apply to the - operator."

... makes a wrong assumption: A casting context (§5.5) can entail a boxing conversion (§5.1.7), hence a cast of a numeric value to a (corresponding) reference type is quite possible.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the source code.

---------- BEGIN SOURCE ----------
class Bug {
    static final int M = (int)-1;
    static final Integer N = (Integer)-1;
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Add parentheses in affected code.

FREQUENCY :
ALWAYS