BAEL-6346 - "Not a managed type" exception in Spring Data JPA

persistence-modules/spring-data-jpa-repo-4/pom.xml

@@ -14,6 +14,11 @@
     </parent>
 
     <dependencies>
+        <dependency>
+            <groupId>jakarta.persistence</groupId>
+            <artifactId>jakarta.persistence-api</artifactId>
+            <version>3.1.0</version>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithjakartaannotation/EntityWithJakartaAnnotation.java

@@ -0,0 +1,10 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithjakartaannotation;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+@Entity
+public class EntityWithJakartaAnnotation {
+    @Id
+    private Long id;
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithjakartaannotation/EntityWithJakartaAnnotationApplication.java

@@ -0,0 +1,8 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithjakartaannotation;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class EntityWithJakartaAnnotationApplication {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithjakartaannotation/EntityWithJakartaAnnotationRepository.java

@@ -0,0 +1,7 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithjakartaannotation;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface EntityWithJakartaAnnotationRepository extends JpaRepository<EntityWithJakartaAnnotation, Long> {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithoutannotation/EntityWithoutAnnotation.java

@@ -0,0 +1,8 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotation;
+
+import javax.persistence.Id;
+
+public class EntityWithoutAnnotation {
+    @Id
+    private Long id;
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithoutannotation/EntityWithoutAnnotationApplication.java

@@ -0,0 +1,8 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotation;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class EntityWithoutAnnotationApplication {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithoutannotation/EntityWithoutAnnotationRepository.java

@@ -0,0 +1,8 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotation;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface EntityWithoutAnnotationRepository
+  extends JpaRepository<EntityWithoutAnnotation, Long> {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithoutannotationfixed/EntityWithoutAnnotationFixed.java

@@ -0,0 +1,10 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotationfixed;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+@Entity
+public class EntityWithoutAnnotationFixed {
+    @Id
+    private Long id;
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithoutannotationfixed/EntityWithoutAnnotationFixedApplication.java

@@ -0,0 +1,8 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotationfixed;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class EntityWithoutAnnotationFixedApplication {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/entitywithoutannotationfixed/EntityWithoutAnnotationFixedRepository.java

@@ -0,0 +1,8 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotationfixed;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface EntityWithoutAnnotationFixedRepository
+  extends JpaRepository<EntityWithoutAnnotationFixed, Long> {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/wrongentityscanapplication/app/WrongEntityScanApplication.java

@@ -0,0 +1,11 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.app;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+@SpringBootApplication
+@EnableJpaRepositories(basePackages =
+  "com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.repository")
+public class WrongEntityScanApplication {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/wrongentityscanapplication/entity/CorrectEntity.java

@@ -0,0 +1,10 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+@Entity
+public class CorrectEntity {
+    @Id
+    private Long id;
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/wrongentityscanapplication/fixed/app/WrongEntityScanFixedApplication.java

@@ -0,0 +1,13 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.fixed.app;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+@SpringBootApplication
+@EnableJpaRepositories(basePackages =
+  "com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.repository")
+@EntityScan("com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.entity")
+public class WrongEntityScanFixedApplication {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/wrongentityscanapplication/repository/CorrectEntityRepository.java

@@ -0,0 +1,9 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.entity.CorrectEntity;
+
+public interface CorrectEntityRepository extends JpaRepository<CorrectEntity, Long> {
+
+}

persistence-modules/spring-data-jpa-repo-4/src/main/resources/application.properties

@@ -1,7 +1,7 @@
+server.port=0
 spring.datasource.url=jdbc:h2:mem:db;DB_CLOSE_DELAY=-1
 spring.datasource.username=sa
 spring.datasource.password=sa
-
 spring.jpa.properties.hibernate.globally_quoted_identifiers=true
 logging.level.com.baeldung.spring.data.persistence.search=debug
 

persistence-modules/spring-data-jpa-repo-4/src/test/java/com/baeldung/spring/notamanagedtypeexceptioninspringdatajpa/NotManagedTypeExceptionIntegrationTest.java

@@ -0,0 +1,66 @@
+package com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.springframework.boot.SpringApplication.run;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.context.ConfigurableApplicationContext;
+
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotation.EntityWithoutAnnotationApplication;
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotationfixed.EntityWithoutAnnotationFixedApplication;
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithoutannotationfixed.EntityWithoutAnnotationFixedRepository;
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.entitywithjakartaannotation.EntityWithJakartaAnnotationApplication;
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.app.WrongEntityScanApplication;
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.fixed.app.WrongEntityScanFixedApplication;
+import com.baeldung.spring.notamanagedtypeexceptioninspringdatajpa.wrongentityscanapplication.repository.CorrectEntityRepository;
+
+class NotManagedTypeExceptionIntegrationTest {
+    @Test
+    void givenEntityWithoutAnnotationApplicationWhenBootstrapThenExpectedExceptionThrown() {
+        Exception exception = assertThrows(Exception.class,
+          () -> run(EntityWithoutAnnotationApplication.class));
+
+        assertThat(exception)
+          .getRootCause()
+          .hasMessageContaining("Not a managed type");
+    }
+
+    @Test
+    void givenEntityWithoutAnnotationApplicationFixedWhenBootstrapThenRepositoryBeanShouldBePresentInContext() {
+        ConfigurableApplicationContext context = run(EntityWithoutAnnotationFixedApplication.class);
+        EntityWithoutAnnotationFixedRepository repository = context
+          .getBean(EntityWithoutAnnotationFixedRepository.class);
+
+        assertThat(repository).isNotNull();
+    }
+
+    @Test
+    void givenEntityWithJakartaAnnotationApplicationWhenBootstrapThenExpectedExceptionThrown() {
+        Exception exception = assertThrows(Exception.class,
+          () -> run(EntityWithJakartaAnnotationApplication.class));
+
+        assertThat(exception)
+          .getRootCause()
+          .hasMessageContaining("Not a managed type");
+    }
+
+    @Test
+    void givenWrongEntityScanApplicationWhenBootstrapThenExpectedExceptionThrown() {
+        Exception exception = assertThrows(Exception.class,
+          () -> run(WrongEntityScanApplication.class));
+
+        assertThat(exception)
+          .getRootCause()
+          .hasMessageContaining("Not a managed type");
+    }
+
+    @Test
+    void givenWrongEntityScanApplicationFixedWhenBootstrapThenRepositoryBeanShouldBePresentInContext() {
+        ConfigurableApplicationContext context = run(WrongEntityScanFixedApplication.class);
+        CorrectEntityRepository repository = context
+          .getBean(CorrectEntityRepository.class);
+
+        assertThat(repository).isNotNull();
+    }
+}