Polish "Verify ssl key alias on server startup"

See gh-19202

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/jetty/SslServerCustomizer.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.
@@ -37,8 +37,8 @@ import org.eclipse.jetty.util.ssl.SslContextFactory;
 
 import org.springframework.boot.web.server.Http2;
 import org.springframework.boot.web.server.Ssl;
+import org.springframework.boot.web.server.SslConfigurationValidator;
 import org.springframework.boot.web.server.SslStoreProvider;
-import org.springframework.boot.web.server.SslUtils;
 import org.springframework.boot.web.server.WebServerException;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
@@ -50,6 +50,7 @@ import org.springframework.util.ResourceUtils;
  *
  * @author Brian Clozel
  * @author Olivier Lamy
+ * @author Chris Bono
  */
 class SslServerCustomizer implements JettyServerCustomizer {
 
@@ -245,7 +246,7 @@ class SslServerCustomizer implements JettyServerCustomizer {
 		@Override
 		protected void doStart() throws Exception {
 			super.doStart();
-			SslUtils.assertStoreContainsAlias(this.sslContextFactory.getKeyStore(), this.keyAlias);
+			SslConfigurationValidator.validateKeyAlias(this.sslContextFactory.getKeyStore(), this.keyAlias);
 		}
 
 	}

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/netty/SslServerCustomizer.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.
@@ -43,8 +43,8 @@ import reactor.netty.tcp.SslProvider;
 
 import org.springframework.boot.web.server.Http2;
 import org.springframework.boot.web.server.Ssl;
+import org.springframework.boot.web.server.SslConfigurationValidator;
 import org.springframework.boot.web.server.SslStoreProvider;
-import org.springframework.boot.web.server.SslUtils;
 import org.springframework.boot.web.server.WebServerException;
 import org.springframework.util.ResourceUtils;
 
@@ -107,8 +107,7 @@ public class SslServerCustomizer implements NettyServerCustomizer {
 	protected KeyManagerFactory getKeyManagerFactory(Ssl ssl, SslStoreProvider sslStoreProvider) {
 		try {
 			KeyStore keyStore = getKeyStore(ssl, sslStoreProvider);
-			SslUtils.assertStoreContainsAlias(keyStore, ssl.getKeyAlias());
-
+			SslConfigurationValidator.validateKeyAlias(keyStore, ssl.getKeyAlias());
 			KeyManagerFactory keyManagerFactory = (ssl.getKeyAlias() == null)
 					? KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm())
 					: new ConfigurableAliasKeyManagerFactory(ssl.getKeyAlias(),

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/SslBuilderCustomizer.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.
@@ -40,8 +40,8 @@ import org.xnio.Sequence;
 import org.xnio.SslClientAuthMode;
 
 import org.springframework.boot.web.server.Ssl;
+import org.springframework.boot.web.server.SslConfigurationValidator;
 import org.springframework.boot.web.server.SslStoreProvider;
-import org.springframework.boot.web.server.SslUtils;
 import org.springframework.boot.web.server.WebServerException;
 import org.springframework.util.ResourceUtils;
 
@@ -108,8 +108,7 @@ class SslBuilderCustomizer implements UndertowBuilderCustomizer {
 	private KeyManager[] getKeyManagers(Ssl ssl, SslStoreProvider sslStoreProvider) {
 		try {
 			KeyStore keyStore = getKeyStore(ssl, sslStoreProvider);
-			SslUtils.assertStoreContainsAlias(keyStore, ssl.getKeyAlias());
-
+			SslConfigurationValidator.validateKeyAlias(keyStore, ssl.getKeyAlias());
 			KeyManagerFactory keyManagerFactory = KeyManagerFactory
 					.getInstance(KeyManagerFactory.getDefaultAlgorithm());
 			char[] keyPassword = (ssl.getKeyPassword() != null) ? ssl.getKeyPassword().toCharArray() : null;

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/server/SslUtils.java → spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/server/SslConfigurationValidator.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.
@@ -26,14 +26,14 @@ import org.springframework.util.StringUtils;
  * Provides utilities around SSL.
  *
  * @author Chris Bono
- * @since 2.1.x
+ * @since 2.1.13
  */
-public final class SslUtils {
+public final class SslConfigurationValidator {
 
-	private SslUtils() {
+	private SslConfigurationValidator() {
 	}
 
-	public static void assertStoreContainsAlias(KeyStore keyStore, String keyAlias) {
+	public static void validateKeyAlias(KeyStore keyStore, String keyAlias) {
 		if (!StringUtils.isEmpty(keyAlias)) {
 			try {
 				Assert.state(keyStore.containsAlias(keyAlias),

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/netty/NettyReactiveWebServerFactoryTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/tomcat/TomcatServletWebServerFactoryTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/reactive/server/AbstractReactiveWebServerFactoryTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/server/SslUtilsTest.java → spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/server/SslConfigurationValidatorTest.java

@@ -27,12 +27,12 @@ import org.junit.Test;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 /**
- * Tests for {@link SslUtils}.
+ * Tests for {@link SslConfigurationValidator}.
  *
  * @author Chris Bono
  */
 
-public class SslUtilsTest {
+public class SslConfigurationValidatorTest {
 
 	private static final String VALID_ALIAS = "test-alias";
 
@@ -47,31 +47,31 @@ public class SslUtilsTest {
 	}
 
 	@Test
-	public void assertStoreContainsAliasPassesWhenAliasFound() throws KeyStoreException {
-		SslUtils.assertStoreContainsAlias(this.keyStore, VALID_ALIAS);
+	public void validateKeyAliasWhenAliasFoundShouldNotFail() {
+		SslConfigurationValidator.validateKeyAlias(this.keyStore, VALID_ALIAS);
 	}
 
 	@Test
-	public void assertStoreContainsAliasPassesWhenNullAlias() throws KeyStoreException {
-		SslUtils.assertStoreContainsAlias(this.keyStore, null);
+	public void validateKeyAliasWhenNullAliasShouldNotFail() {
+		SslConfigurationValidator.validateKeyAlias(this.keyStore, null);
 	}
 
 	@Test
-	public void assertStoreContainsAliasPassesWhenEmptyAlias() throws KeyStoreException {
-		SslUtils.assertStoreContainsAlias(this.keyStore, "");
+	public void validateKeyAliasWhenEmptyAliasShouldNotFail() {
+		SslConfigurationValidator.validateKeyAlias(this.keyStore, "");
 	}
 
 	@Test
-	public void assertStoreContainsAliasFailsWhenAliasNotFound() throws KeyStoreException {
-		assertThatThrownBy(() -> SslUtils.assertStoreContainsAlias(this.keyStore, INVALID_ALIAS))
+	public void validateKeyAliasWhenAliasNotFoundShouldThrowException() {
+		assertThatThrownBy(() -> SslConfigurationValidator.validateKeyAlias(this.keyStore, INVALID_ALIAS))
 				.isInstanceOf(IllegalStateException.class)
 				.hasMessage("Keystore does not contain specified alias '" + INVALID_ALIAS + "'");
 	}
 
 	@Test
-	public void assertStoreContainsAliasFailsWhenKeyStoreThrowsExceptionOnContains() throws KeyStoreException {
+	public void validateKeyAliasWhenKeyStoreThrowsExceptionOnContains() throws KeyStoreException {
 		KeyStore uninitializedKeyStore = KeyStore.getInstance(KeyStore.getDefaultType());
-		assertThatThrownBy(() -> SslUtils.assertStoreContainsAlias(uninitializedKeyStore, "alias"))
+		assertThatThrownBy(() -> SslConfigurationValidator.validateKeyAlias(uninitializedKeyStore, "alias"))
 				.isInstanceOf(IllegalStateException.class)
 				.hasMessage("Could not determine if keystore contains alias 'alias'");
 	}

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/servlet/server/AbstractServletWebServerFactoryTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.