Introduce value alias for cacheNames in @⁠CacheConfig

Prior to this commit @⁠CacheConfig did not have a `value` attribute
alias for `cacheNames`, even though the rest of the cache-related
annotations (such as @⁠Cacheable, @⁠CachePut, etc.) do have a `value` /
`cacheNames` alias pair.

To address that inconsistency, this commit introduces a `value` alias
for `cacheNames` in @⁠CacheConfig as well.

See gh-35096
Closes gh-35152

Author: sbrannen

spring-context-support/src/test/java/org/springframework/cache/caffeine/CaffeineReactiveCachingTests.java

@@ -129,7 +129,7 @@ void fluxCacheDoesntDependOnFirstRequest(Class<?> configClass) {
 	}
 
 
-	@CacheConfig(cacheNames = "first")
+	@CacheConfig("first")
 	static class ReactiveCacheableService {
 
 		private final AtomicLong counter = new AtomicLong();

spring-context/src/main/java/org/springframework/cache/annotation/CacheConfig.java

@@ -22,6 +22,8 @@
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+import org.springframework.core.annotation.AliasFor;
+
 /**
  * {@code @CacheConfig} provides a mechanism for sharing common cache-related
  * settings at the class level.
@@ -39,6 +41,13 @@
 @Documented
 public @interface CacheConfig {
 
+	/**
+	 * Alias for {@link #cacheNames}.
+	 * @since 7.0
+	 */
+	@AliasFor("cacheNames")
+	String[] value() default {};
+
 	/**
 	 * Names of the default caches to consider for caching operations defined
 	 * in the annotated class.
@@ -47,7 +56,9 @@
 	 * configured {@link #cacheResolver()} which typically delegates to
 	 * {@link org.springframework.cache.CacheManager#getCache}.
 	 * For further details see {@link Cacheable#cacheNames()}.
+	 * @see #value
 	 */
+	@AliasFor("value")
 	String[] cacheNames() default {};
 
 	/**

spring-context/src/test/java/org/springframework/cache/annotation/AnnotationCacheOperationSourceTests.java

@@ -443,7 +443,7 @@ public void multipleCacheConfig() {
 	}
 
 
-	@CacheConfig(cacheNames = "myCache")
+	@CacheConfig("myCache")
 	private interface CacheConfigIfc {
 
 		@Cacheable

spring-context/src/test/java/org/springframework/cache/annotation/ReactiveCachingTests.java

@@ -256,7 +256,7 @@ void cacheErrorHandlerWithLoggingCacheErrorHandlerAndOperationExceptionAndSync()
 	}
 
 
-	@CacheConfig(cacheNames = "first")
+	@CacheConfig("first")
 	static class ReactiveCacheableService {
 
 		private final AtomicLong counter = new AtomicLong();
@@ -282,7 +282,7 @@ Flux<Long> cacheFlux(Object arg) {
 	}
 
 
-	@CacheConfig(cacheNames = "first")
+	@CacheConfig("first")
 	static class ReactiveSyncCacheableService {
 
 		private final AtomicLong counter = new AtomicLong();
@@ -304,7 +304,7 @@ Flux<Long> cacheFlux(Object arg) {
 	}
 
 
-	@CacheConfig(cacheNames = "first")
+	@CacheConfig("first")
 	static class ReactiveFailureCacheableService {
 
 		private final AtomicBoolean cacheFutureInvoked = new AtomicBoolean();

spring-context/src/test/java/org/springframework/cache/config/EnableCachingIntegrationTests.java

@@ -200,7 +200,7 @@ interface FooService {
 	}
 
 
-	@CacheConfig(cacheNames = "testCache")
+	@CacheConfig("testCache")
 	static class FooServiceImpl implements FooService {
 
 		private final AtomicLong counter = new AtomicLong();

spring-context/src/test/java/org/springframework/cache/interceptor/CacheErrorHandlerTests.java

@@ -261,7 +261,7 @@ public Cache mockCache() {
 
 	}
 
-	@CacheConfig(cacheNames = "test")
+	@CacheConfig("test")
 	public static class SimpleService {
 		private AtomicLong counter = new AtomicLong();
 

spring-context/src/test/java/org/springframework/cache/interceptor/CachePutEvaluationTests.java

@@ -121,7 +121,7 @@ public SimpleService simpleService() {
 
 	}
 
-	@CacheConfig(cacheNames = "test")
+	@CacheConfig("test")
 	public static class SimpleService {
 		private AtomicLong counter = new AtomicLong();
 

spring-context/src/test/java/org/springframework/cache/interceptor/CacheResolverCustomizationTests.java

@@ -206,7 +206,7 @@ public SimpleService simpleService() {
 	}
 
 
-	@CacheConfig(cacheNames = "default")
+	@CacheConfig("default")
 	static class SimpleService {
 
 		private final AtomicLong counter = new AtomicLong();