Clarify log message with a profile containing a comma

See gh-29896

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java

@@ -667,13 +667,19 @@ public class SpringApplication {
 		Log log = getApplicationLog();
 		if (log.isInfoEnabled()) {
 			String[] activeProfiles = context.getEnvironment().getActiveProfiles();
+			for (int i = 0; i < activeProfiles.length; i++) {
+				activeProfiles[i] = "\"" + activeProfiles[i] + "\"";
+			}
 			if (ObjectUtils.isEmpty(activeProfiles)) {
 				String[] defaultProfiles = context.getEnvironment().getDefaultProfiles();
-				log.info("No active profile set, falling back to default profiles: "
+				for (int i = 0; i < defaultProfiles.length; i++) {
+					defaultProfiles[i] = "\"" + defaultProfiles[i] + "\"";
+				}
+				log.info("No active profile set, falling back to " + defaultProfiles.length + " default profile(s): "
 						+ StringUtils.arrayToCommaDelimitedString(defaultProfiles));
 			}
 			else {
-				log.info("The following profiles are active: "
+				log.info("The following " + activeProfiles.length + " profile(s) are active: "
 						+ StringUtils.arrayToCommaDelimitedString(activeProfiles));
 			}
 		}

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java

@@ -253,7 +253,7 @@ class SpringApplicationTests {
 		SpringApplication application = new SpringApplication(ExampleConfig.class);
 		application.setWebApplicationType(WebApplicationType.NONE);
 		this.context = application.run();
-		assertThat(output).contains("No active profile set, falling back to default profiles: default");
+		assertThat(output).contains("No active profile set, falling back to 1 default profile(s): \"default\"");
 	}
 
 	@Test
@@ -261,7 +261,7 @@ class SpringApplicationTests {
 		SpringApplication application = new SpringApplication(ExampleConfig.class);
 		application.setWebApplicationType(WebApplicationType.NONE);
 		this.context = application.run("--spring.profiles.active=myprofiles");
-		assertThat(output).contains("The following profiles are active: myprofile");
+		assertThat(output).contains("The following 1 profile(s) are active: \"myprofiles\"");
 	}
 
 	@Test
@@ -273,6 +273,15 @@ class SpringApplicationTests {
 		assertThat(output).contains("o.s.b.SpringApplication");
 	}
 
+	@Test
+	void logsMultipleActiveProfilesWithComma(CapturedOutput output) {
+		SpringApplication application = new SpringApplication(ExampleConfig.class);
+		application.setWebApplicationType(WebApplicationType.NONE);
+		application.setAdditionalProfiles("p1,p2", "p3");
+		application.run();
+		assertThat(output).contains("The following 2 profile(s) are active: \"p1,p2\",\"p3\"");
+	}
+
 	@Test
 	void setIgnoreBeanInfoPropertyByDefault(CapturedOutput output) {
 		SpringApplication application = new SpringApplication(ExampleConfig.class);