From 158cae4207c375ec82a542e5bf9b8583a81cd878 Mon Sep 17 00:00:00 2001
From: Guillaume Smet <guillaume.smet@gmail.com>
Date: Tue, 1 Aug 2017 18:12:12 +0200
Subject: [PATCH] HV-1445 Remove the metadata cache in
 AnnotationMetaDataProvider

We only keep the Object metadata handy.
---
 .../provider/AnnotationMetaDataProvider.java  | 34 ++++++++-----------
 1 file changed, 14 insertions(+), 20 deletions(-)

diff --git a/engine/src/main/java/org/hibernate/validator/internal/metadata/provider/AnnotationMetaDataProvider.java b/engine/src/main/java/org/hibernate/validator/internal/metadata/provider/AnnotationMetaDataProvider.java
index ad795e10ca..af650e6f9f 100644
--- a/engine/src/main/java/org/hibernate/validator/internal/metadata/provider/AnnotationMetaDataProvider.java
+++ b/engine/src/main/java/org/hibernate/validator/internal/metadata/provider/AnnotationMetaDataProvider.java
@@ -9,7 +9,6 @@
 import static org.hibernate.validator.internal.util.CollectionHelper.newArrayList;
 import static org.hibernate.validator.internal.util.CollectionHelper.newHashMap;
 import static org.hibernate.validator.internal.util.CollectionHelper.newHashSet;
-import static org.hibernate.validator.internal.util.ConcurrentReferenceHashMap.ReferenceType.SOFT;
 import static org.hibernate.validator.internal.util.logging.Messages.MESSAGES;
 
 import java.lang.annotation.Annotation;
@@ -64,7 +63,6 @@
 import org.hibernate.validator.internal.metadata.raw.ConstrainedParameter;
 import org.hibernate.validator.internal.metadata.raw.ConstrainedType;
 import org.hibernate.validator.internal.util.CollectionHelper;
-import org.hibernate.validator.internal.util.ConcurrentReferenceHashMap;
 import org.hibernate.validator.internal.util.ExecutableHelper;
 import org.hibernate.validator.internal.util.ReflectionHelper;
 import org.hibernate.validator.internal.util.TypeResolutionHelper;
@@ -82,19 +80,17 @@
  *
  * @author Gunnar Morling
  * @author Hardy Ferentschik
+ * @author Guillaume Smet
  */
 public class AnnotationMetaDataProvider implements MetaDataProvider {
 	private static final Log log = LoggerFactory.make();
-	/**
-	 * The default initial capacity for this cache.
-	 */
-	static final int DEFAULT_INITIAL_CAPACITY = 16;
 
-	protected final ConstraintHelper constraintHelper;
-	protected final TypeResolutionHelper typeResolutionHelper;
-	protected final ConcurrentReferenceHashMap<Class<?>, BeanConfiguration<?>> configuredBeans;
-	protected final AnnotationProcessingOptions annotationProcessingOptions;
-	protected final ValueExtractorManager valueExtractorManager;
+	private final ConstraintHelper constraintHelper;
+	private final TypeResolutionHelper typeResolutionHelper;
+	private final AnnotationProcessingOptions annotationProcessingOptions;
+	private final ValueExtractorManager valueExtractorManager;
+
+	private final BeanConfiguration<Object> objectBeanConfiguration;
 
 	public AnnotationMetaDataProvider(ConstraintHelper constraintHelper,
 			TypeResolutionHelper typeResolutionHelper,
@@ -104,11 +100,8 @@ public AnnotationMetaDataProvider(ConstraintHelper constraintHelper,
 		this.typeResolutionHelper = typeResolutionHelper;
 		this.valueExtractorManager = valueExtractorManager;
 		this.annotationProcessingOptions = annotationProcessingOptions;
-		this.configuredBeans = new ConcurrentReferenceHashMap<>(
-				DEFAULT_INITIAL_CAPACITY,
-				SOFT,
-				SOFT
-		);
+
+		this.objectBeanConfiguration = retrieveBeanConfiguration( Object.class );
 	}
 
 	@Override
@@ -117,12 +110,13 @@ public AnnotationProcessingOptions getAnnotationProcessingOptions() {
 	}
 
 	@Override
+	@SuppressWarnings("unchecked")
 	public <T> BeanConfiguration<T> getBeanConfiguration(Class<T> beanClass) {
-		@SuppressWarnings("unchecked")
-		BeanConfiguration<T> configuration = (BeanConfiguration<T>) configuredBeans.
-				computeIfAbsent( beanClass, bc -> retrieveBeanConfiguration( beanClass ) );
+		if ( Object.class.equals( beanClass ) ) {
+			return (BeanConfiguration<T>) objectBeanConfiguration;
+		}
 
-		return configuration;
+		return retrieveBeanConfiguration( beanClass );
 	}
 
 	/**