Bug 575551

Description Gayan Perera 2021-08-21 13:12:05 EDT

Take 

import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class Inspect {
	public void hoverOverLocal(String[] names) throws InterruptedException, ExecutionException {
		CompletableFuture<List<String>> future = CompletableFuture.supplyAsync(() -> {
			return Stream.of(names).filter(s -> {
				try {
					return CompletableFuture.supplyAsync(() -> {
						return containsDigit(s.codePointAt(0), names.length);
					}).get();
				} catch (Exception e) {
					return false;
				}
			}).collect(Collectors.toList());
		});
		future.get();
	}
	
	private boolean containsDigit(int c, int length) {
		return Character.isDigit(c) && c == length;
	}
	
	public static void main(String[] args) throws InterruptedException, ExecutionException {
		new Inspect().hoverOverLocal(new String[] {"name"});
	}
}


Place a line breakpoing at java.lang.CharacterDataLatin1.isDigit(int) and debug the code.

Now move debug frame selection to Inspect.lambda$2(String, String[]) in the debug view. And try to evaluate "names" variable in the editor or in Debug shell. It says name cannot be resolved.

But hovering over the names variable works. probably it is fixed by Bug 573547.