/* package whatever; // don't place package name! */
 
import java.util.*;
import java.util.concurrent.Callable;
import java.util.function.Supplier;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	private static Map<String, Number> createMap() {
        return new HashMap<>();
    }
 
    public static <T> T get(final Callable<T> _valueCreator, final Supplier<T> _errorValue) {
        try {
            return _valueCreator.call();
        } catch (final Exception e) {
            return _errorValue.get();
        }
    }
 
    public static Map<String, Number> getCachedMap() {
        return get(Ideone::createMap, Collections::emptyMap);
    }
 
    public static void main(String[] args) {
        System.out.println(getCachedMap());
    }
}

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