Deprecate spring.cache.hazelcast.config

The additional configuration for an `HazelcastInstance` will be removed
in 2.0. This commit makes sure that the property is deprecated in 1.5

See gh-8470

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cache/CacheProperties.java

@@ -88,6 +88,7 @@ public class CacheProperties {
 		return this.ehcache;
 	}
 
+	@Deprecated
 	public Hazelcast getHazelcast() {
 		return this.hazelcast;
 	}
@@ -193,6 +194,7 @@ public class CacheProperties {
 	/**
 	 * Hazelcast specific cache properties.
 	 */
+	@Deprecated
 	public static class Hazelcast {
 
 		/**
@@ -200,6 +202,9 @@ public class CacheProperties {
 		 */
 		private Resource config;
 
+		@DeprecatedConfigurationProperty(replacement = "spring.hazelcast.config",
+				reason = "Use general hazelcast auto-configuration instead.")
+		@Deprecated
 		public Resource getConfig() {
 			return this.config;
 		}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cache/CacheAutoConfigurationTests.java

@@ -451,6 +451,7 @@ public class CacheAutoConfigurationTests {
 	}
 
 	@Test
+	@Deprecated
 	public void hazelcastCacheWithConfig() throws IOException {
 		load(DefaultCacheConfiguration.class, "spring.cache.type=hazelcast",
 				"spring.cache.hazelcast.config=org/springframework/boot/autoconfigure/cache/hazelcast-specific.xml");
@@ -469,6 +470,7 @@ public class CacheAutoConfigurationTests {
 	}
 
 	@Test
+	@Deprecated
 	public void hazelcastWithWrongConfig() {
 		this.thrown.expect(BeanCreationException.class);
 		this.thrown.expectMessage("foo/bar/unknown.xml");
@@ -505,6 +507,7 @@ public class CacheAutoConfigurationTests {
 	}
 
 	@Test
+	@Deprecated
 	public void hazelcastCacheWithMainHazelcastAutoConfigurationAndSeparateCacheConfig()
 			throws IOException {
 		String mainConfig = "org/springframework/boot/autoconfigure/hazelcast/hazelcast-specific.xml";

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

@@ -72,7 +72,6 @@ content into your application; rather pick only the properties that you need.
 	spring.cache.couchbase.expiration=0 # Entry expiration in milliseconds. By default the entries never expire.
 	spring.cache.ehcache.config= # The location of the configuration file to use to initialize EhCache.
 	spring.cache.guava.spec= # The spec to use to create caches. Check CacheBuilderSpec for more details on the spec format.
-	spring.cache.hazelcast.config= # The location of the configuration file to use to initialize Hazelcast.
 	spring.cache.infinispan.config= # The location of the configuration file to use to initialize Infinispan.
 	spring.cache.jcache.config= # The location of the configuration file to use to initialize the cache manager.
 	spring.cache.jcache.provider= # Fully qualified name of the CachingProvider implementation to use to retrieve the JSR-107 compliant cache manager. Only needed if more than one JSR-107 implementation is available on the classpath.

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -4163,18 +4163,6 @@ Spring Boot has a <<boot-features-hazelcast,general support for Hazelcast>>. If
 a `HazelcastInstance` has been auto-configured, it is automatically wrapped in a
 `CacheManager`.
 
-If for some reason you need a different `HazelcastInstance` for caching, you can
-request Spring Boot to create a separate one that will be only used by the
-`CacheManager`:
-
-[source,properties,indent=0]
-----
-	spring.cache.hazelcast.config=classpath:config/my-cache-hazelcast.xml
-----
-
-TIP: If a separate `HazelcastInstance` is created that way, it is not registered
-in the application context.
-
 
 
 [[boot-features-caching-provider-infinispan]]