generics - Java unchecked conversion

Question

I have the following line of code

this.htmlSpecialChars = this.getSpecialCharMap();

where

private HashMap<String,String> htmlSpecialChars;

but I get a warning about an unchecked conversion. How do I stop this warning?

Answer 1

You're getting this because getSpecialCharMap() is returning an object whose type cannot be verified by the compiler to be HashMap< String, String>. Go ahead and provide the prototype for getSpecialCharMap.