Merge branch '3.1.x'

Closes gh-37601

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

@@ -30,6 +30,7 @@ import ch.qos.logback.classic.Level;
 import ch.qos.logback.classic.LoggerContext;
 import ch.qos.logback.classic.joran.JoranConfigurator;
 import ch.qos.logback.classic.jul.LevelChangePropagator;
+import ch.qos.logback.classic.spi.TurboFilterList;
 import ch.qos.logback.classic.turbo.TurboFilter;
 import ch.qos.logback.core.joran.spi.JoranException;
 import ch.qos.logback.core.spi.FilterReply;
@@ -219,6 +220,7 @@ public class LogbackLoggingSystem extends AbstractLoggingSystem implements BeanF
 	protected void loadDefaults(LoggingInitializationContext initializationContext, LogFile logFile) {
 		LoggerContext context = getLoggerContext();
 		stopAndReset(context);
+		withLoggingSuppressed(() -> {
 			boolean debug = Boolean.getBoolean("logback.debug");
 			if (debug) {
 				StatusListenerConfigHelper.addOnConsoleListenerInstance(context, new OnConsoleStatusListener());
@@ -231,22 +233,25 @@ public class LogbackLoggingSystem extends AbstractLoggingSystem implements BeanF
 					: new LogbackConfigurator(context);
 			new DefaultLogbackConfiguration(logFile).apply(configurator);
 			context.setPackagingDataEnabled(true);
+		});
 	}
 
 	@Override
 	protected void loadConfiguration(LoggingInitializationContext initializationContext, String location,
 			LogFile logFile) {
+		LoggerContext loggerContext = getLoggerContext();
+		stopAndReset(loggerContext);
+		withLoggingSuppressed(() -> {
 			if (initializationContext != null) {
 				applySystemProperties(initializationContext.getEnvironment(), logFile);
 			}
-		LoggerContext loggerContext = getLoggerContext();
-		stopAndReset(loggerContext);
 			try {
 				configureByResourceUrl(initializationContext, loggerContext, ResourceUtils.getURL(location));
 			}
 			catch (Exception ex) {
 				throw new IllegalStateException("Could not initialize Logback logging from " + location, ex);
 			}
+		});
 		reportConfigurationErrorsIfNecessary(loggerContext);
 	}
 
@@ -455,6 +460,17 @@ public class LogbackLoggingSystem extends AbstractLoggingSystem implements BeanF
 		return contribution;
 	}
 
+	private void withLoggingSuppressed(Runnable action) {
+		TurboFilterList turboFilters = getLoggerContext().getTurboFilterList();
+		turboFilters.add(FILTER);
+		try {
+			action.run();
+		}
+		finally {
+			turboFilters.remove(FILTER);
+		}
+	}
+
 	/**
 	 * {@link LoggingSystemFactory} that returns {@link LogbackLoggingSystem} if possible.
 	 */

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

@@ -60,12 +60,14 @@ import org.springframework.boot.logging.LoggingInitializationContext;
 import org.springframework.boot.logging.LoggingSystem;
 import org.springframework.boot.logging.LoggingSystemProperties;
 import org.springframework.boot.logging.LoggingSystemProperty;
+import org.springframework.boot.testsupport.classpath.ClassPathExclusions;
 import org.springframework.boot.testsupport.classpath.ClassPathOverrides;
 import org.springframework.boot.testsupport.system.CapturedOutput;
 import org.springframework.boot.testsupport.system.OutputCaptureExtension;
 import org.springframework.core.convert.ConversionService;
 import org.springframework.core.convert.support.ConfigurableConversionService;
 import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.core.env.MapPropertySource;
 import org.springframework.mock.env.MockEnvironment;
 import org.springframework.test.util.ReflectionTestUtils;
 import org.springframework.util.ReflectionUtils;
@@ -94,6 +96,7 @@ import static org.mockito.Mockito.times;
  * @author Moritz Halbritter
  */
 @ExtendWith(OutputCaptureExtension.class)
+@ClassPathExclusions({ "log4j-core-*.jar", "log4j-api-*.jar" })
 class LogbackLoggingSystemTests extends AbstractLoggingSystemTests {
 
 	private final LogbackLoggingSystem loggingSystem = new LogbackLoggingSystem(getClass().getClassLoader());
@@ -129,7 +132,7 @@ class LogbackLoggingSystemTests extends AbstractLoggingSystemTests {
 	}
 
 	@Test
-	@ClassPathOverrides("org.jboss.logging:jboss-logging:3.5.0.Final")
+	@ClassPathOverrides({ "org.jboss.logging:jboss-logging:3.5.0.Final", "org.apache.logging.log4j:log4j-core:2.19.0" })
 	void jbossLoggingRoutesThroughLog4j2ByDefault() {
 		System.getProperties().remove("org.jboss.logging.provider");
 		org.jboss.logging.Logger jbossLogger = org.jboss.logging.Logger.getLogger(getClass());
@@ -826,6 +829,15 @@ class LogbackLoggingSystemTests extends AbstractLoggingSystemTests {
 			.contains("Some warn message");
 	}
 
+	@Test
+	void applyingSystemPropertiesDoesNotCauseUnwantedStatusWarnings(CapturedOutput output) {
+		this.loggingSystem.beforeInitialize();
+		this.environment.getPropertySources()
+			.addFirst(new MapPropertySource("test", Map.of("logging.pattern.console", "[CONSOLE]%m")));
+		this.loggingSystem.initialize(this.initializationContext, "classpath:logback-nondefault.xml", null);
+		assertThat(output).doesNotContain("WARN");
+	}
+
 	private void initialize(LoggingInitializationContext context, String configLocation, LogFile logFile) {
 		this.loggingSystem.getSystemProperties((ConfigurableEnvironment) context.getEnvironment()).apply(logFile);
 		this.loggingSystem.beforeInitialize();