Merge pull request #14915 from michaldo

* gh-14915:
  Polish
  Skip restarter for JUnit5

spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/DefaultRestartInitializer.java

@@ -37,6 +37,7 @@ public class DefaultRestartInitializer implements RestartInitializer {
 	static {
 		Set<String> skipped = new LinkedHashSet<>();
 		skipped.add("org.junit.runners.");
+		skipped.add("org.junit.platform.");
 		skipped.add("org.springframework.boot.test.");
 		skipped.add("cucumber.runtime.");
 		SKIPPED_STACK_ELEMENTS = Collections.unmodifiableSet(skipped);

spring-boot-project/spring-boot-devtools/src/test/java/org/springframework/boot/devtools/restart/DefaultRestartInitializerTests.java

@@ -36,6 +36,11 @@ public class DefaultRestartInitializerTests {
 		testSkippedStacks("org.junit.runners.Something");
 	}
 
+	@Test
+	public void jUnit5StackShouldReturnNull() {
+		testSkippedStacks("org.junit.platform.Something");
+	}
+
 	@Test
 	public void springTestStackShouldReturnNull() {
 		testSkippedStacks("org.springframework.boot.test.Something");