use @PersistenceContext for EntityManager, not @Autowired

src/main/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorController.java

@@ -13,6 +13,7 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 
 import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
 import java.util.List;
 import java.util.UUID;
 
@@ -29,7 +30,7 @@ public class HsOfficeDebitorController implements HsOfficeDebitorsApi {
     @Autowired
     private HsOfficeDebitorRepository debitorRepo;
 
-    @Autowired
+    @PersistenceContext
     private EntityManager em;
 
     @Override

src/main/java/net/hostsharing/hsadminng/hs/office/membership/HsOfficeMembershipController.java

@@ -13,6 +13,7 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 
 import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
 import javax.validation.Valid;
 import java.util.List;
 import java.util.UUID;
@@ -31,7 +32,7 @@ public class HsOfficeMembershipController implements HsOfficeMembershipsApi {
     @Autowired
     private HsOfficeMembershipRepository membershipRepo;
 
-    @Autowired
+    @PersistenceContext
     private EntityManager em;
 
     @Override

src/main/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerController.java

@@ -14,6 +14,7 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 
 import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
 import java.util.List;
 import java.util.UUID;
 
@@ -30,7 +31,7 @@ public class HsOfficePartnerController implements HsOfficePartnersApi {
     @Autowired
     private HsOfficePartnerRepository partnerRepo;
 
-    @Autowired
+    @PersistenceContext
     private EntityManager em;
 
     @Override

src/main/java/net/hostsharing/hsadminng/hs/office/relationship/HsOfficeRelationshipController.java

@@ -13,6 +13,7 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 
 import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
 import java.util.List;
 import java.util.NoSuchElementException;
 import java.util.UUID;
@@ -38,7 +39,7 @@ public class HsOfficeRelationshipController implements HsOfficeRelationshipsApi
     @Autowired
     private HsOfficeContactRepository contactRepo;
 
-    @Autowired
+    @PersistenceContext
     private EntityManager em;
 
     @Override

src/main/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateController.java

@@ -13,6 +13,7 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 
 import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
 import javax.validation.Valid;
 import java.util.List;
 import java.util.UUID;
@@ -33,7 +34,7 @@ public class HsOfficeSepaMandateController implements HsOfficeSepaMandatesApi {
     @Autowired
     private HsOfficeSepaMandateRepository SepaMandateRepo;
 
-    @Autowired
+    @PersistenceContext
     private EntityManager em;
 
     @Override