Rename ResourceProperties.Chain.html5AppCache

Rename the `html5AppCache` property from `ResourceProperties.Chain` to
`html-application-cache`.

Fixes gh-3354

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ResourceProperties.java

@@ -77,9 +77,9 @@ public class ResourceProperties {
 		private boolean cache = true;
 
 		/**
-		 * Enable HTML5 app cache manifest rewriting.
+		 * Enable HTML5 application cache manifest rewriting.
 		 */
-		private boolean html5AppCache = false;
+		private boolean htmlApplicationCache = false;
 
 		private final Strategy strategy = new Strategy();
 
@@ -103,12 +103,12 @@ public class ResourceProperties {
 			return this.strategy;
 		}
 
-		public boolean isHtml5AppCache() {
-			return this.html5AppCache;
+		public boolean isHtmlApplicationCache() {
+			return this.htmlApplicationCache;
 		}
 
-		public void setHtml5AppCache(boolean html5AppCache) {
-			this.html5AppCache = html5AppCache;
+		public void setHtmlApplicationCache(boolean htmlApplicationCache) {
+			this.htmlApplicationCache = htmlApplicationCache;
 		}
 
 	}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.java

@@ -288,7 +288,7 @@ public class WebMvcAutoConfiguration {
 			if (strategy.getFixed().isEnabled() || strategy.getContent().isEnabled()) {
 				chain.addResolver(getVersionResourceResolver(strategy));
 			}
-			if (properties.isHtml5AppCache()) {
+			if (properties.isHtmlApplicationCache()) {
 				chain.addTransformer(new AppCacheManifestTransformer());
 			}
 		}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfigurationTests.java

@@ -236,7 +236,7 @@ public class WebMvcAutoConfigurationTests {
 				"spring.resources.chain.strategy.fixed.enabled:true",
 				"spring.resources.chain.strategy.fixed.version:test",
 				"spring.resources.chain.strategy.fixed.paths:/**/*.js",
-				"spring.resources.chain.html5AppCache:true");
+				"spring.resources.chain.html-application-cache:true");
 		assertThat(getResourceResolvers("/webjars/**").size(), equalTo(2));
 		assertThat(getResourceTransformers("/webjars/**").size(), equalTo(2));
 		assertThat(getResourceResolvers("/**").size(), equalTo(2));

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -132,7 +132,7 @@ content into your application; rather pick only the properties that you need.
 	spring.resources.add-mappings=true # if default mappings should be added
 	spring.resources.chain.enabled=false # enable the Spring Resource Handling chain (enabled automatically if at least a strategy is enabled)
 	spring.resources.chain.cache=false # enable in-memory caching of resource resolution
-	spring.resources.chain.html5AppCache=false # enable HTML5 appcache manifest rewriting
+	spring.resources.chain.html-application-cache=false # enable HTML5 appcache manifest rewriting
 	spring.resources.chain.strategy.content.enabled=false # enable a content version strategy
 	spring.resources.chain.strategy.content.paths= # comma-separated list of regular expression patterns to apply the version strategy to
 	spring.resources.chain.strategy.fixed.enabled=false # enable a fixed version strategy