Replace loops with Arrays.setAll where possible

See gh-14125

Author: dreis2211

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/TypeUtils.java

@@ -16,6 +16,7 @@
 
 package org.springframework.boot.configurationprocessor;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.EnumMap;
@@ -86,9 +87,7 @@ class TypeUtils {
 	private TypeMirror getDeclaredType(Types types, Class<?> typeClass,
 			int numberOfTypeArgs) {
 		TypeMirror[] typeArgs = new TypeMirror[numberOfTypeArgs];
-		for (int i = 0; i < typeArgs.length; i++) {
-			typeArgs[i] = types.getWildcardType(null, null);
-		}
+		Arrays.setAll(typeArgs, i -> types.getWildcardType(null, null));
 		TypeElement typeElement = this.env.getElementUtils()
 				.getTypeElement(typeClass.getName());
 		try {

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/web/servlet/MockServletWebServer.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.testsupport.web.servlet;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -114,9 +115,7 @@ public ServletContext getServletContext() {
 
 	public Servlet[] getServlets() {
 		Servlet[] servlets = new Servlet[this.registeredServlets.size()];
-		for (int i = 0; i < servlets.length; i++) {
-			servlets[i] = this.registeredServlets.get(i).getServlet();
-		}
+		Arrays.setAll(servlets, i -> this.registeredServlets.get(i).getServlet());
 		return servlets;
 	}
 

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/jetty/JettyReactiveWebServerFactoryTests.java

@@ -68,9 +68,7 @@ public void jettyCustomizersShouldBeInvoked() {
 		HttpHandler handler = mock(HttpHandler.class);
 		JettyReactiveWebServerFactory factory = getFactory();
 		JettyServerCustomizer[] configurations = new JettyServerCustomizer[4];
-		for (int i = 0; i < configurations.length; i++) {
-			configurations[i] = mock(JettyServerCustomizer.class);
-		}
+		Arrays.setAll(configurations, i -> mock(JettyServerCustomizer.class));
 		factory.setServerCustomizers(Arrays.asList(configurations[0], configurations[1]));
 		factory.addServerCustomizers(configurations[2], configurations[3]);
 		this.webServer = factory.getWebServer(handler);

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/jetty/JettyServletWebServerFactoryTests.java

@@ -75,9 +75,7 @@ protected JettyServletWebServerFactory getFactory() {
 	public void jettyConfigurations() throws Exception {
 		JettyServletWebServerFactory factory = getFactory();
 		Configuration[] configurations = new Configuration[4];
-		for (int i = 0; i < configurations.length; i++) {
-			configurations[i] = mock(Configuration.class);
-		}
+		Arrays.setAll(configurations, i -> mock(Configuration.class));
 		factory.setConfigurations(Arrays.asList(configurations[0], configurations[1]));
 		factory.addConfigurations(configurations[2], configurations[3]);
 		this.webServer = factory.getWebServer();
@@ -91,9 +89,7 @@ public void jettyConfigurations() throws Exception {
 	public void jettyCustomizations() {
 		JettyServletWebServerFactory factory = getFactory();
 		JettyServerCustomizer[] configurations = new JettyServerCustomizer[4];
-		for (int i = 0; i < configurations.length; i++) {
-			configurations[i] = mock(JettyServerCustomizer.class);
-		}
+		Arrays.setAll(configurations, i -> mock(JettyServerCustomizer.class));
 		factory.setServerCustomizers(Arrays.asList(configurations[0], configurations[1]));
 		factory.addServerCustomizers(configurations[2], configurations[3]);
 		this.webServer = factory.getWebServer();

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

@@ -54,9 +54,7 @@ protected TomcatReactiveWebServerFactory getFactory() {
 	public void tomcatCustomizers() {
 		TomcatReactiveWebServerFactory factory = getFactory();
 		TomcatContextCustomizer[] listeners = new TomcatContextCustomizer[4];
-		for (int i = 0; i < listeners.length; i++) {
-			listeners[i] = mock(TomcatContextCustomizer.class);
-		}
+		Arrays.setAll(listeners, i -> mock(TomcatContextCustomizer.class));
 		factory.setTomcatContextCustomizers(Arrays.asList(listeners[0], listeners[1]));
 		factory.addContextCustomizers(listeners[2], listeners[3]);
 		this.webServer = factory.getWebServer(mock(HttpHandler.class));
@@ -88,9 +86,7 @@ public void defaultTomcatListeners() {
 	public void tomcatListeners() {
 		TomcatReactiveWebServerFactory factory = getFactory();
 		LifecycleListener[] listeners = new LifecycleListener[4];
-		for (int i = 0; i < listeners.length; i++) {
-			listeners[i] = mock(LifecycleListener.class);
-		}
+		Arrays.setAll(listeners, i -> mock(LifecycleListener.class));
 		factory.setContextLifecycleListeners(Arrays.asList(listeners[0], listeners[1]));
 		factory.addContextLifecycleListeners(listeners[2], listeners[3]);
 		this.webServer = factory.getWebServer(mock(HttpHandler.class));
@@ -121,9 +117,7 @@ public void tomcatConnectorCustomizersShouldBeInvoked() {
 		TomcatReactiveWebServerFactory factory = getFactory();
 		HttpHandler handler = mock(HttpHandler.class);
 		TomcatConnectorCustomizer[] listeners = new TomcatConnectorCustomizer[4];
-		for (int i = 0; i < listeners.length; i++) {
-			listeners[i] = mock(TomcatConnectorCustomizer.class);
-		}
+		Arrays.setAll(listeners, i -> mock(TomcatConnectorCustomizer.class));
 		factory.setTomcatConnectorCustomizers(Arrays.asList(listeners[0], listeners[1]));
 		factory.addConnectorCustomizers(listeners[2], listeners[3]);
 		this.webServer = factory.getWebServer(handler);

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

@@ -121,9 +121,7 @@ public void defaultTomcatListeners() {
 	public void tomcatListeners() {
 		TomcatServletWebServerFactory factory = getFactory();
 		LifecycleListener[] listeners = new LifecycleListener[4];
-		for (int i = 0; i < listeners.length; i++) {
-			listeners[i] = mock(LifecycleListener.class);
-		}
+		Arrays.setAll(listeners, i -> mock(LifecycleListener.class));
 		factory.setContextLifecycleListeners(Arrays.asList(listeners[0], listeners[1]));
 		factory.addContextLifecycleListeners(listeners[2], listeners[3]);
 		this.webServer = factory.getWebServer();
@@ -137,9 +135,7 @@ public void tomcatListeners() {
 	public void tomcatCustomizers() {
 		TomcatServletWebServerFactory factory = getFactory();
 		TomcatContextCustomizer[] listeners = new TomcatContextCustomizer[4];
-		for (int i = 0; i < listeners.length; i++) {
-			listeners[i] = mock(TomcatContextCustomizer.class);
-		}
+		Arrays.setAll(listeners, i -> mock(TomcatContextCustomizer.class));
 		factory.setTomcatContextCustomizers(Arrays.asList(listeners[0], listeners[1]));
 		factory.addContextCustomizers(listeners[2], listeners[3]);
 		this.webServer = factory.getWebServer();
@@ -164,9 +160,7 @@ public void contextIsAddedToHostBeforeCustomizersAreCalled() {
 	public void tomcatConnectorCustomizers() {
 		TomcatServletWebServerFactory factory = getFactory();
 		TomcatConnectorCustomizer[] listeners = new TomcatConnectorCustomizer[4];
-		for (int i = 0; i < listeners.length; i++) {
-			listeners[i] = mock(TomcatConnectorCustomizer.class);
-		}
+		Arrays.setAll(listeners, i -> mock(TomcatConnectorCustomizer.class));
 		factory.setTomcatConnectorCustomizers(Arrays.asList(listeners[0], listeners[1]));
 		factory.addConnectorCustomizers(listeners[2], listeners[3]);
 		this.webServer = factory.getWebServer();
@@ -180,11 +174,7 @@ public void tomcatConnectorCustomizers() {
 	public void tomcatAdditionalConnectors() {
 		TomcatServletWebServerFactory factory = getFactory();
 		Connector[] listeners = new Connector[4];
-		for (int i = 0; i < listeners.length; i++) {
-			Connector connector = mock(Connector.class);
-			given(connector.getState()).willReturn(LifecycleState.STOPPED);
-			listeners[i] = connector;
-		}
+		Arrays.setAll(listeners, i -> stoppedConnector());
 		factory.addAdditionalTomcatConnectors(listeners);
 		this.webServer = factory.getWebServer();
 		Map<Service, Connector[]> connectors = ((TomcatWebServer) this.webServer)
@@ -193,6 +183,12 @@ public void tomcatAdditionalConnectors() {
 				.isEqualTo(listeners.length + 1);
 	}
 
+	private Connector stoppedConnector() {
+		Connector connector = mock(Connector.class);
+		given(connector.getState()).willReturn(LifecycleState.STOPPED);
+		return connector;
+	}
+
 	@Test
 	public void addNullAdditionalConnectorThrows() {
 		TomcatServletWebServerFactory factory = getFactory();

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/undertow/UndertowReactiveWebServerFactoryTests.java

@@ -77,9 +77,7 @@ public void builderCustomizersShouldBeInvoked() {
 		UndertowReactiveWebServerFactory factory = getFactory();
 		HttpHandler handler = mock(HttpHandler.class);
 		UndertowBuilderCustomizer[] customizers = new UndertowBuilderCustomizer[4];
-		for (int i = 0; i < customizers.length; i++) {
-			customizers[i] = mock(UndertowBuilderCustomizer.class);
-		}
+		Arrays.setAll(customizers, i -> mock(UndertowBuilderCustomizer.class));
 		factory.setBuilderCustomizers(Arrays.asList(customizers[0], customizers[1]));
 		factory.addBuilderCustomizers(customizers[2], customizers[3]);
 		this.webServer = factory.getWebServer(handler);

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/undertow/UndertowServletWebServerFactoryTests.java

@@ -102,9 +102,7 @@ public void addNullAddBuilderCustomizersThrows() {
 	public void builderCustomizers() {
 		UndertowServletWebServerFactory factory = getFactory();
 		UndertowBuilderCustomizer[] customizers = new UndertowBuilderCustomizer[4];
-		for (int i = 0; i < customizers.length; i++) {
-			customizers[i] = mock(UndertowBuilderCustomizer.class);
-		}
+		Arrays.setAll(customizers, i -> mock(UndertowBuilderCustomizer.class));
 		factory.setBuilderCustomizers(Arrays.asList(customizers[0], customizers[1]));
 		factory.addBuilderCustomizers(customizers[2], customizers[3]);
 		this.webServer = factory.getWebServer();
@@ -134,9 +132,7 @@ public void addNullAddDeploymentInfoCustomizersThrows() {
 	public void deploymentInfo() {
 		UndertowServletWebServerFactory factory = getFactory();
 		UndertowDeploymentInfoCustomizer[] customizers = new UndertowDeploymentInfoCustomizer[4];
-		for (int i = 0; i < customizers.length; i++) {
-			customizers[i] = mock(UndertowDeploymentInfoCustomizer.class);
-		}
+		Arrays.setAll(customizers, i -> mock(UndertowDeploymentInfoCustomizer.class));
 		factory.setDeploymentInfoCustomizers(
 				Arrays.asList(customizers[0], customizers[1]));
 		factory.addDeploymentInfoCustomizers(customizers[2], customizers[3]);

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

@@ -305,9 +305,7 @@ public void contextRootPathMustNotBeSlash() {
 	public void multipleConfigurations() throws Exception {
 		AbstractServletWebServerFactory factory = getFactory();
 		ServletContextInitializer[] initializers = new ServletContextInitializer[6];
-		for (int i = 0; i < initializers.length; i++) {
-			initializers[i] = mock(ServletContextInitializer.class);
-		}
+		Arrays.setAll(initializers, i -> mock(ServletContextInitializer.class));
 		factory.setInitializers(Arrays.asList(initializers[2], initializers[3]));
 		factory.addInitializers(initializers[4], initializers[5]);
 		this.webServer = factory.getWebServer(initializers[0], initializers[1]);