getCommonType

Returns the type that is shared between all variables. This is a shortcut for when you are certain that all variables share one type. What makes this difficult is arrays, and being able to set the type. For int a; this is int. For int a,b,c,d; this is also int. For int a,b[],c; this is an assertion error since b is an int[], not an int. For int a,b;, then doing setType(String) on b, this is an assertion error. It is also a situation that you don't really want.