Avoid eager factory bean instantiation for container customizers

Author: Dave Syer

spring-boot/src/main/java/org/springframework/boot/context/embedded/EmbeddedServletContainerCustomizerBeanPostProcessor.java

@@ -73,7 +73,8 @@ private Collection<EmbeddedServletContainerCustomizer> getCustomizers() {
 			// Look up does not include the parent context
 			this.customizers = new ArrayList<EmbeddedServletContainerCustomizer>(
 					this.applicationContext.getBeansOfType(
-							EmbeddedServletContainerCustomizer.class).values());
+							EmbeddedServletContainerCustomizer.class, false, false)
+							.values());
 			Collections.sort(this.customizers, AnnotationAwareOrderComparator.INSTANCE);
 			this.customizers = Collections.unmodifiableList(this.customizers);
 		}