Don't add -Xverify:none to JVM args when running on Java 13

Closes spring-projectsgh-17008

Author: wilkinsona

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/run/BootRun.java

@@ -16,6 +16,9 @@
 
 package org.springframework.boot.gradle.tasks.run;
 
+import java.lang.reflect.Method;
+
+import org.gradle.api.JavaVersion;
 import org.gradle.api.file.SourceDirectorySet;
 import org.gradle.api.tasks.Input;
 import org.gradle.api.tasks.JavaExec;
@@ -69,7 +72,11 @@ public void sourceResources(SourceSet sourceSet) {
 	public void exec() {
 		if (this.optimizedLaunch) {
 			setJvmArgs(getJvmArgs());
-			jvmArgs("-Xverify:none", "-XX:TieredStopAtLevel=1");
+			JavaVersion.current();
+			if (!isJava13OrLater()) {
+				jvmArgs("-Xverify:none");
+			}
+			jvmArgs("-XX:TieredStopAtLevel=1");
 		}
 		if (System.console() != null) {
 			// Record that the console is available here for AnsiOutput to detect later
@@ -78,4 +85,13 @@ public void exec() {
 		super.exec();
 	}
 
+	private boolean isJava13OrLater() {
+		for (Method method : String.class.getMethods()) {
+			if (method.getName().equals("stripIndent")) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 }

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/RunMojo.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.maven;
 
 import java.io.File;
+import java.lang.reflect.Method;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.List;
@@ -81,11 +82,22 @@ protected RunArguments resolveJvmArguments() {
 		RunArguments jvmArguments = super.resolveJvmArguments();
 		if (isFork() && this.optimizedLaunch) {
 			jvmArguments.getArgs().addFirst("-XX:TieredStopAtLevel=1");
-			jvmArguments.getArgs().addFirst("-Xverify:none");
+			if (!isJava13OrLater()) {
+				jvmArguments.getArgs().addFirst("-Xverify:none");
+			}
 		}
 		return jvmArguments;
 	}
 
+	private boolean isJava13OrLater() {
+		for (Method method : String.class.getMethods()) {
+			if (method.getName().equals("stripIndent")) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	@Override
 	protected void runWithForkedJvm(File workingDirectory, List<String> args, Map<String, String> environmentVariables)
 			throws MojoExecutionException {