@Override
    public int hashCode() {
        return context.hashCode();
    }
Returns the object in this context that implements the given interface,
or the given default value if such an object is not found.

@param key          the interface implemented by the requested object
@param defaultValue value to return if the requested object is not found
@return the object that implements the given interface,
or the given default value if not found
tika-core/src/main/java/org/apache/tika/parser/ParseContext.java