Fix logic error hidden by auto-boxing

Author: sbrannen

spring-test/src/main/java/org/springframework/test/context/bean/override/BeanOverrideParser.java

@@ -94,7 +94,7 @@ private void parseField(Field field, Class<?> source) {
 		AtomicBoolean overrideAnnotationFound = new AtomicBoolean();
 
 		MergedAnnotations.from(field, DIRECT).stream(BeanOverride.class).forEach(mergedAnnotation -> {
-			Assert.notNull(mergedAnnotation.isMetaPresent(), "@BeanOverride annotation must be meta-present");
+			Assert.isTrue(mergedAnnotation.isMetaPresent(), "@BeanOverride annotation must be meta-present");
 
 			BeanOverride beanOverride = mergedAnnotation.synthesize();
 			BeanOverrideProcessor processor = BeanUtils.instantiateClass(beanOverride.value());