How to bypass compilation error in lambda expression?

Question

Java

There is this simple code:

final StringBuilder p = new StringBuilder();
List<Stirng> arr = ....;
arr.forEach(m -> p.append("names[]=" + URLEncoder.encode(m, "UTF-8")));

On the second line, the compiler complains with the following error:
Error:(172, 78) java: unreported exception java.io.UnsupportedEncodingException; must be caught or declared to be thrown
The current method has the possibility of all types of errors: throws Exception.

Answer 1

wrap
p.append("names[]=" + URLEncoder.encode(m, "UTF-8"));
in try\catch

Answer 2

List<Stirng> arr = ....;
     ^^^^^

I guess it should be "String" here