Polishing

spring-boot/src/main/java/org/springframework/boot/diagnostics/FailureAnalyzers.java

@@ -122,7 +122,7 @@ public final class FailureAnalyzers {
 				}
 			}
 			catch (Throwable ex) {
-				log.debug("FailureAnalyzer " + analyzer + " failed", ex);
+				logger.debug("FailureAnalyzer " + analyzer + " failed", ex);
 			}
 		}
 		return null;