Add timezone offset to default logging date format patterns

Closes gh-28654

spring-boot-project/spring-boot-docs/src/docs/asciidoc/features/logging.adoc

@@ -107,7 +107,7 @@ For example, to make the text yellow, use the following setting:
 
 [source,indent=0,subs="verbatim"]
 ----
-	%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){yellow}
+	%clr(%d{yyyy-MM-dd'T'HH:mm:ss.SSSXXX}){yellow}
 ----
 
 The following colors and styles are supported:

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/logback/DefaultLogbackConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2022 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.
@@ -40,6 +40,7 @@ import org.springframework.boot.logging.LogFile;
  * @author Madhura Bhave
  * @author Vedran Pavic
  * @author Robert Thornton
+ * @author Scott Frederick
  */
 class DefaultLogbackConfiguration {
 
@@ -68,14 +69,14 @@ class DefaultLogbackConfiguration {
 		config.conversionRule("wex", WhitespaceThrowableProxyConverter.class);
 		config.conversionRule("wEx", ExtendedWhitespaceThrowableProxyConverter.class);
 		config.getContext().putProperty("CONSOLE_LOG_PATTERN", resolve(config, "${CONSOLE_LOG_PATTERN:-"
-				+ "%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) "
+				+ "%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) "
 				+ "%clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} "
 				+ "%clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"));
 		String defaultCharset = Charset.defaultCharset().name();
 		config.getContext().putProperty("CONSOLE_LOG_CHARSET",
 				resolve(config, "${CONSOLE_LOG_CHARSET:-" + defaultCharset + "}"));
 		config.getContext().putProperty("FILE_LOG_PATTERN", resolve(config, "${FILE_LOG_PATTERN:-"
-				+ "%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] "
+				+ "%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] "
 				+ "%-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"));
 		config.getContext().putProperty("FILE_LOG_CHARSET",
 				resolve(config, "${FILE_LOG_CHARSET:-" + defaultCharset + "}"));

spring-boot-project/spring-boot/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -163,21 +163,21 @@
       "type": "java.lang.String",
       "description": "Appender pattern for output to the console. Supported only with the default Logback setup.",
       "sourceType": "org.springframework.boot.context.logging.LoggingApplicationListener",
-      "defaultValue": "%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"
+      "defaultValue": "%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"
     },
     {
       "name": "logging.pattern.dateformat",
       "type": "java.lang.String",
       "description": "Appender pattern for log date format. Supported only with the default Logback setup.",
       "sourceType": "org.springframework.boot.context.logging.LoggingApplicationListener",
-      "defaultValue": "yyyy-MM-dd HH:mm:ss.SSS"
+      "defaultValue": "yyyy-MM-dd'T'HH:mm:ss.SSSXXX"
     },
     {
       "name": "logging.pattern.file",
       "type": "java.lang.String",
       "description": "Appender pattern for output to a file. Supported only with the default Logback setup.",
       "sourceType": "org.springframework.boot.context.logging.LoggingApplicationListener",
-      "defaultValue": "%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"
+      "defaultValue": "%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"
     },
     {
       "name": "logging.pattern.level",

spring-boot-project/spring-boot/src/main/resources/org/springframework/boot/logging/log4j2/log4j2-file.xml

@@ -3,7 +3,7 @@
 	<Properties>
 		<Property name="LOG_EXCEPTION_CONVERSION_WORD">%xwEx</Property>
 		<Property name="LOG_LEVEL_PATTERN">%5p</Property>
-		<Property name="LOG_DATEFORMAT_PATTERN">yyyy-MM-dd HH:mm:ss.SSS</Property>
+		<Property name="LOG_DATEFORMAT_PATTERN">yyyy-MM-dd'T'HH:mm:ss.SSSXXX</Property>
 		<Property name="CONSOLE_LOG_PATTERN">%clr{%d{${sys:LOG_DATEFORMAT_PATTERN}}}{faint} %clr{${sys:LOG_LEVEL_PATTERN}} %clr{%pid}{magenta} %clr{---}{faint} %clr{[%15.15t]}{faint} %clr{%-40.40c{1.}}{cyan} %clr{:}{faint} %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
 		<Property name="FILE_LOG_PATTERN">%d{${sys:LOG_DATEFORMAT_PATTERN}} ${sys:LOG_LEVEL_PATTERN} %pid --- [%t] %-40.40c{1.} : %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
 	</Properties>

spring-boot-project/spring-boot/src/main/resources/org/springframework/boot/logging/log4j2/log4j2.xml

@@ -3,7 +3,7 @@
 	<Properties>
 		<Property name="LOG_EXCEPTION_CONVERSION_WORD">%xwEx</Property>
 		<Property name="LOG_LEVEL_PATTERN">%5p</Property>
-		<Property name="LOG_DATEFORMAT_PATTERN">yyyy-MM-dd HH:mm:ss.SSS</Property>
+		<Property name="LOG_DATEFORMAT_PATTERN">yyyy-MM-dd'T'HH:mm:ss.SSSXXX</Property>
 		<Property name="CONSOLE_LOG_PATTERN">%clr{%d{${sys:LOG_DATEFORMAT_PATTERN}}}{faint} %clr{${sys:LOG_LEVEL_PATTERN}} %clr{%pid}{magenta} %clr{---}{faint} %clr{[%15.15t]}{faint} %clr{%-40.40c{1.}}{cyan} %clr{:}{faint} %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
 		<Property name="FILE_LOG_PATTERN">%d{${LOG_DATEFORMAT_PATTERN}} ${LOG_LEVEL_PATTERN} %pid --- [%t] %-40.40c{1.} : %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
 	</Properties>

spring-boot-project/spring-boot/src/main/resources/org/springframework/boot/logging/logback/defaults.xml

@@ -9,9 +9,9 @@ Default logback configuration provided for import
 	<conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
 	<conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
 
-	<property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
+	<property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
 	<property name="CONSOLE_LOG_CHARSET" value="${CONSOLE_LOG_CHARSET:-${file.encoding:-UTF-8}}"/>
-	<property name="FILE_LOG_PATTERN" value="${FILE_LOG_PATTERN:-%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
+	<property name="FILE_LOG_PATTERN" value="${FILE_LOG_PATTERN:-%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
 	<property name="FILE_LOG_CHARSET" value="${FILE_LOG_CHARSET:-${file.encoding:-UTF-8}}"/>
 
 	<logger name="org.apache.catalina.startup.DigesterFactory" level="ERROR"/>

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/logging/log4j2/Log4j2FileXmlTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2022 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.
@@ -31,6 +31,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Tests for {@code log4j2-file.xml}.
  *
  * @author Andy Wilkinson
+ * @author Scott Frederick
  */
 class Log4j2FileXmlTests extends Log4j2XmlTests {
 
@@ -68,7 +69,7 @@ class Log4j2FileXmlTests extends Log4j2XmlTests {
 
 	@Test
 	void whenLogLDateformatPatternIsNotConfiguredThenFileAppenderUsesDefault() {
-		assertThat(fileAppenderPattern()).contains("yyyy-MM-dd HH:mm:ss.SSS");
+		assertThat(fileAppenderPattern()).contains("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
 	}
 
 	@Test

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/logging/log4j2/Log4j2XmlTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2022 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.
@@ -35,6 +35,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Tests for {@code log4j2.xml}.
  *
  * @author Andy Wilkinson
+ * @author Scott Frederick
  */
 class Log4j2XmlTests {
 
@@ -69,7 +70,7 @@ class Log4j2XmlTests {
 
 	@Test
 	void whenLogLDateformatPatternIsNotConfiguredThenConsoleUsesDefault() {
-		assertThat(consolePattern()).contains("yyyy-MM-dd HH:mm:ss.SSS");
+		assertThat(consolePattern()).contains("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
 	}
 
 	@Test

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/logging/logback/LogbackLoggingSystemTests.java

@@ -82,6 +82,7 @@ import static org.mockito.Mockito.times;
  * @author Vedran Pavic
  * @author Robert Thornton
  * @author Eddú Meléndez
+ * @author Scott Frederick
  */
 @ExtendWith(OutputCaptureExtension.class)
 class LogbackLoggingSystemTests extends AbstractLoggingSystemTests {
@@ -547,27 +548,34 @@ class LogbackLoggingSystemTests extends AbstractLoggingSystemTests {
 		then(listener).should(times(2)).onReset(loggerContext);
 	}
 
+	@Test
+	void testDateformatPatternDefault(CapturedOutput output) {
+		LoggingInitializationContext loggingInitializationContext = new LoggingInitializationContext(this.environment);
+		initialize(loggingInitializationContext, null, null);
+		this.logger.info("Hello world");
+		assertThat(getLineWithText(output, "Hello world"))
+				.containsPattern("\\d{4}-\\d{2}\\-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}[-+]\\d{2}:\\d{2}");
+	}
+
 	@Test
 	void testDateformatPatternProperty(CapturedOutput output) {
-		this.environment.setProperty("logging.pattern.dateformat", "yyyy-MM-dd'T'hh:mm:ss.SSSZ");
+		this.environment.setProperty("logging.pattern.dateformat", "dd-MM-yyyy");
 		new LoggingSystemProperties(this.environment).apply();
 		LoggingInitializationContext loggingInitializationContext = new LoggingInitializationContext(this.environment);
 		initialize(loggingInitializationContext, null, null);
 		this.logger.info("Hello world");
-		assertThat(getLineWithText(output, "Hello world"))
-				.containsPattern("\\d{4}-\\d{2}\\-\\d{2}T\\d{2}:\\d{2}:\\d{2}");
+		assertThat(getLineWithText(output, "Hello world")).containsPattern("\\d{2}-\\d{2}-\\d{4}\\s");
 	}
 
 	@Test // gh-24835
 	void testDateformatPatternPropertyDirect(CapturedOutput output) {
-		this.environment.setProperty("logging.pattern.dateformat", "yyyy'T'hh:mm:ss.SSSZ");
+		this.environment.setProperty("logging.pattern.dateformat", "yyyy");
 		new LoggingSystemProperties(this.environment).apply();
-		this.environment.setProperty("logging.pattern.dateformat", "yyyy-MM-dd'T'hh:mm:ss.SSSZ");
+		this.environment.setProperty("logging.pattern.dateformat", "dd-MM-yyyy");
 		LoggingInitializationContext loggingInitializationContext = new LoggingInitializationContext(this.environment);
 		initialize(loggingInitializationContext, null, null);
 		this.logger.info("Hello world");
-		assertThat(getLineWithText(output, "Hello world"))
-				.containsPattern("\\d{4}-\\d{2}\\-\\d{2}T\\d{2}:\\d{2}:\\d{2}");
+		assertThat(getLineWithText(output, "Hello world")).containsPattern("\\d{2}-\\d{2}-\\d{4}\\s");
 	}
 
 	@Test

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-actuator-log4j2/src/main/resources/log4j2.xml

@@ -2,7 +2,7 @@
 <Configuration status="WARN" monitorInterval="30">
     <Properties>
         <Property name="PID">????</Property>
-        <Property name="LOG_PATTERN">%clr{%d{yyyy-MM-dd HH:mm:ss.SSS}}{faint} %clr{%5p} %clr{${sys:PID}}{magenta} %clr{---}{faint} %clr{[%15.15t]}{faint} %clr{%-40.40c{1.}}{cyan} %clr{:}{faint} %m%n%xwEx</Property>
+        <Property name="LOG_PATTERN">%clr{%d{yyyy-MM-dd'T'HH:mm:ss.SSSXXX}}{faint} %clr{%5p} %clr{${sys:PID}}{magenta} %clr{---}{faint} %clr{[%15.15t]}{faint} %clr{%-40.40c{1.}}{cyan} %clr{:}{faint} %m%n%xwEx</Property>
     </Properties>
     <Appenders>
         <Console name="Console" target="SYSTEM_OUT" follow="true">