Apply value formatting to resolved exceptions

Author: rstoyanchev

spring-core/src/main/java/org/springframework/core/log/LogFormatUtils.java

@@ -43,7 +43,7 @@ public abstract class LogFormatUtils {
 	 * @return the formatted value
 	 */
 	public static String formatValue(@Nullable Object value, boolean limitLength) {
-		return formatValue(value, 100, limitLength);
+		return formatValue(value, (limitLength ? 100 : -1), limitLength);
 	}
 
 	/**

spring-web/src/main/java/org/springframework/web/server/handler/ResponseStatusExceptionHandler.java

@@ -20,6 +20,7 @@
 import org.apache.commons.logging.LogFactory;
 import reactor.core.publisher.Mono;
 
+import org.springframework.core.log.LogFormatUtils;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.http.server.reactive.ServerHttpResponse;
@@ -81,9 +82,10 @@ else if (logger.isDebugEnabled()) {
 
 
 	private String formatError(Throwable ex, ServerHttpRequest request) {
-		String reason = ex.getClass().getSimpleName() + ": " + ex.getMessage();
+		String className = ex.getClass().getSimpleName();
+		String message = LogFormatUtils.formatValue(ex.getMessage(), -1, true);
 		String path = request.getURI().getRawPath();
-		return "Resolved [" + reason + "] for HTTP " + request.getMethod() + " " + path;
+		return "Resolved [" + className + ": " + message + "] for HTTP " + request.getMethod() + " " + path;
 	}
 
 	private boolean updateResponse(ServerHttpResponse response, Throwable ex) {

spring-webmvc/src/main/java/org/springframework/web/servlet/handler/AbstractHandlerExceptionResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@
 import org.apache.commons.logging.LogFactory;
 
 import org.springframework.core.Ordered;
+import org.springframework.core.log.LogFormatUtils;
 import org.springframework.lang.Nullable;
 import org.springframework.util.StringUtils;
 import org.springframework.web.servlet.HandlerExceptionResolver;
@@ -142,7 +143,7 @@ public ModelAndView resolveException(
 			if (result != null) {
 				// Print debug message when warn logger is not enabled.
 				if (logger.isDebugEnabled() && (this.warnLogger == null || !this.warnLogger.isWarnEnabled())) {
-					logger.debug("Resolved [" + ex + "]" + (result.isEmpty() ? "" : " to " + result));
+					logger.debug(buildLogMessage(ex, request) + (result.isEmpty() ? "" : " to " + result));
 				}
 				// Explicitly configured warn logger in logException method.
 				logException(ex, request);
@@ -215,7 +216,7 @@ protected void logException(Exception ex, HttpServletRequest request) {
 	 * @return the log message to use
 	 */
 	protected String buildLogMessage(Exception ex, HttpServletRequest request) {
-		return "Resolved [" + ex + "]";
+		return "Resolved [" + LogFormatUtils.formatValue(ex, -1, true) + "]";
 	}
 
 	/**