Added some logging to JqwikReflectionSupport

engine/src/main/java/net/jqwik/engine/support/JqwikReflectionSupport.java

@@ -6,13 +6,15 @@
 import java.nio.file.*;
 import java.util.*;
 import java.util.function.*;
+import java.util.logging.*;
 import java.util.stream.*;
 
 import org.junit.platform.commons.support.*;
 
 import net.jqwik.api.*;
 import net.jqwik.api.providers.*;
 import net.jqwik.api.support.*;
+import net.jqwik.engine.properties.shrinking.*;
 import net.jqwik.engine.support.types.*;
 
 import static java.util.stream.Collectors.*;
@@ -21,6 +23,8 @@
 
 public class JqwikReflectionSupport {
 
+	private static final Logger LOG = Logger.getLogger(JqwikReflectionSupport.class.getName());
+
 	public static Stream<Object> streamInstancesFromInside(Object inner) {
 		return addInstances(inner, new ArrayList<>()).stream();
 	}
@@ -50,6 +54,9 @@ private static Optional<Object> getOuterInstance(Object inner) {
 					   try {
 						   return makeAccessible(field).get(inner);
 					   } catch (SecurityException | IllegalArgumentException | IllegalAccessException ex) {
+						   String message = String.format("Could not access outer instance of %s." +
+															  "%nReason: %s", inner, ex);
+						   LOG.warning(message);
 						   return Optional.empty();
 					   }
 				   });