Add JPA configuration. This fixes a missing Bean error.

src/main/java/eu/dnetlib/repo/manager/Application.java

@@ -2,9 +2,11 @@ package eu.dnetlib.repo.manager;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
 import org.springframework.scheduling.annotation.EnableScheduling;
 
 @SpringBootApplication
+@EnableJpaRepositories
 @EnableScheduling
 public class Application {
 

src/main/java/eu/dnetlib/repo/manager/config/JPAConfig.java

@@ -0,0 +1,17 @@
+package eu.dnetlib.repo.manager.config;
+
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.transaction.PlatformTransactionManager;
+
+@Configuration
+public class JPAConfig {
+
+    @Bean
+    public PlatformTransactionManager transactionManager() {
+        return new JpaTransactionManager();
+    }
+
+}