Disable Hibernate entity scanning for default JPA setup

See gh-15565

Author: ayudovin

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateProperties.java

@@ -34,6 +34,7 @@
  * Configuration properties for Hibernate.
  *
  * @author Stephane Nicoll
+ * @author Artsiom Yudovin
  * @since 2.1.0
  * @see JpaProperties
  */
@@ -95,6 +96,7 @@ private Map<String, Object> getAdditionalProperties(Map<String, String> existing
 			HibernateSettings settings) {
 		Map<String, Object> result = new HashMap<>(existing);
 		applyNewIdGeneratorMappings(result);
+		applyArchiveScanner(result);
 		getNaming().applyNamingStrategies(result);
 		String ddlAuto = determineDdlAuto(existing, settings::getDdlAuto);
 		if (StringUtils.hasText(ddlAuto) && !"none".equals(ddlAuto)) {
@@ -121,6 +123,13 @@ else if (!result.containsKey(AvailableSettings.USE_NEW_ID_GENERATOR_MAPPINGS)) {
 		}
 	}
 
+	private void applyArchiveScanner(Map<String, Object> result) {
+		if (!result.containsKey(AvailableSettings.SCANNER)) {
+			result.put(AvailableSettings.SCANNER,
+					"org.hibernate.boot.archive.scan.internal.DisabledScanner");
+		}
+	}
+
 	private String determineDdlAuto(Map<String, String> existing,
 			Supplier<String> defaultDdlAuto) {
 		String ddlAuto = existing.get(AvailableSettings.HBM2DDL_AUTO);

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernatePropertiesTests.java

@@ -43,6 +43,7 @@
  * Tests for {@link HibernateProperties}.
  *
  * @author Stephane Nicoll
+ * @author Artsiom Yudovin
  */
 public class HibernatePropertiesTests {
 
@@ -123,6 +124,23 @@ public void useNewIdGeneratorMappingsFalse() {
 										"false")));
 	}
 
+	@Test
+	public void useArchiveScanner() {
+		this.contextRunner.withPropertyValues(
+				"spring.jpa.properties.hibernate.archive.scanner:org.hibernate.boot.archive.scan.internal.StandardScanner")
+				.run(assertHibernateProperties((hibernateProperties) -> assertThat(
+						hibernateProperties).containsEntry(AvailableSettings.SCANNER,
+								"org.hibernate.boot.archive.scan.internal.StandardScanner")));
+	}
+
+	@Test
+	public void defaultArchiveScanner() {
+		this.contextRunner.run(assertHibernateProperties(
+				(hibernateProperties) -> assertThat(hibernateProperties).containsEntry(
+						AvailableSettings.SCANNER,
+						"org.hibernate.boot.archive.scan.internal.DisabledScanner")));
+	}
+
 	@Test
 	public void defaultDdlAutoIsNotInvokedIfPropertyIsSet() {
 		this.contextRunner.withPropertyValues("spring.jpa.hibernate.ddl-auto=validate")