ClassUtils: skip Object when scanning for fields

The java.lang.Object class does not have any annotated fields at all.
And even if it did, it definitely does not have any fields annotated
with SciJava annotations such as org.scijava.plugin.Parameter, which
are the main sorts of fields we are interested in.

Author: ctrueden

src/main/java/org/scijava/util/ClassUtils.java

@@ -356,7 +356,7 @@ public static <A extends Annotation> List<Field> getAnnotatedFields(
 	public static <A extends Annotation> void getAnnotatedFields(
 		final Class<?> c, final Class<A> annotationClass, final List<Field> fields)
 	{
-		if (c == null) return;
+		if (c == null || c == Object.class) return;
 
 		// check supertypes for annotated fields first
 		getAnnotatedFields(c.getSuperclass(), annotationClass, fields);