src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntity.java

@@ -98,7 +98,15 @@ public class HsBookingItemEntity implements Stringifyable, RbacObject {
     private Map<String, Object> resources = new HashMap<>();
 
     @Transient
-    private PatchableMapWrapper resourcesWrapper;
+    private PatchableMapWrapper<Object> resourcesWrapper;
+
+    public PatchableMapWrapper<Object> getResources() {
+        return PatchableMapWrapper.of(resourcesWrapper, (newWrapper) -> {resourcesWrapper = newWrapper; }, resources );
+    }
+
+    public void putResources(Map<String, Object> newResources) {
+        getResources().assign(newResources);
+    }
 
     public void setValidFrom(final LocalDate validFrom) {
         setValidity(toPostgresDateRange(validFrom, getValidTo()));
@@ -116,20 +124,6 @@ public class HsBookingItemEntity implements Stringifyable, RbacObject {
         return upperInclusiveFromPostgresDateRange(getValidity());
     }
 
-    public PatchableMapWrapper getResources() {
-        if ( resourcesWrapper == null ) {
-            resourcesWrapper = new PatchableMapWrapper(resources);
-        }
-        return resourcesWrapper;
-    }
-
-    public void putResources(Map<String, Object> entries) {
-        if ( resourcesWrapper == null ) {
-            resourcesWrapper = new PatchableMapWrapper(resources);
-        }
-        resourcesWrapper.assign(entries);
-    }
-
     @Override
     public String toString() {
         return stringify.apply(this);

src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetEntity.java

@@ -105,20 +105,14 @@ public class HsHostingAssetEntity implements Stringifyable, RbacObject {
     private Map<String, Object> config = new HashMap<>();
 
     @Transient
-    private PatchableMapWrapper configWrapper;
+    private PatchableMapWrapper<Object> configWrapper;
 
-    public PatchableMapWrapper getConfig() {
-        if ( configWrapper == null ) {
-            configWrapper = new PatchableMapWrapper(config);
-        }
-        return configWrapper;
+    public PatchableMapWrapper<Object> getConfig() {
+        return PatchableMapWrapper.of(configWrapper, (newWrapper) -> {configWrapper = newWrapper; }, config );
     }
 
-    public void putConfig(Map<String, Object> entries) {
-        if ( configWrapper == null ) {
-            configWrapper = new PatchableMapWrapper(config);
-        }
-        configWrapper.assign(entries);
+    public void putConfig(Map<String, Object> newConfg) {
+        PatchableMapWrapper.of(configWrapper, (newWrapper) -> {configWrapper = newWrapper; }, config).assign(newConfg);
     }
 
     @Override

src/main/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactController.java

@@ -14,6 +14,9 @@ import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBui
 
 import java.util.List;
 import java.util.UUID;
+import java.util.function.BiConsumer;
+
+import static net.hostsharing.hsadminng.mapper.KeyValueMap.from;
 
 @RestController
 
@@ -51,7 +54,7 @@ public class HsOfficeContactController implements HsOfficeContactsApi {
 
         context.define(currentUser, assumedRoles);
 
-        final var entityToSave = mapper.map(body, HsOfficeContactEntity.class);
+        final var entityToSave = mapper.map(body, HsOfficeContactEntity.class, RESOURCE_TO_ENTITY_POSTMAPPER);
 
         final var saved = contactRepo.save(entityToSave);
 
@@ -108,10 +111,16 @@ public class HsOfficeContactController implements HsOfficeContactsApi {
 
         final var current = contactRepo.findByUuid(contactUuid).orElseThrow();
 
-        new HsOfficeContactEntityPatch(current).apply(body);
+        new HsOfficeContactEntityPatcher(current).apply(body);
 
         final var saved = contactRepo.save(current);
         final var mapped = mapper.map(saved, HsOfficeContactResource.class);
         return ResponseEntity.ok(mapped);
     }
+
+    @SuppressWarnings("unchecked")
+    final BiConsumer<HsOfficeContactInsertResource, HsOfficeContactEntity> RESOURCE_TO_ENTITY_POSTMAPPER = (resource, entity) -> {
+        entity.putEmailAddresses(from(resource.getEmailAddresses()));
+        entity.putPhoneNumbers(from(resource.getPhoneNumbers()));
+    };
 }

src/main/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactEntity.java

@@ -1,17 +1,22 @@
 package net.hostsharing.hsadminng.hs.office.contact;
 
+import io.hypersistence.utils.hibernate.type.json.JsonType;
 import lombok.*;
 import lombok.experimental.FieldNameConstants;
 import net.hostsharing.hsadminng.errors.DisplayName;
+import net.hostsharing.hsadminng.mapper.PatchableMapWrapper;
 import net.hostsharing.hsadminng.rbac.rbacobject.RbacObject;
 import net.hostsharing.hsadminng.rbac.rbacdef.RbacView;
 import net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL;
 import net.hostsharing.hsadminng.stringify.Stringify;
 import net.hostsharing.hsadminng.stringify.Stringifyable;
 import org.hibernate.annotations.GenericGenerator;
+import org.hibernate.annotations.Type;
 
 import jakarta.persistence.*;
 import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.UUID;
 
 import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.GLOBAL;
@@ -44,17 +49,45 @@ public class HsOfficeContactEntity implements Stringifyable, RbacObject {
     @Version
     private int version;
 
-    @Column(name = "label")
+    @Column(name = "label") // TODO.impl: rename to caption
     private String label;
 
     @Column(name = "postaladdress")
-    private String postalAddress; // TODO.spec: check if we really want multiple, if so: JSON-Array or Postgres-Array?
+    private String postalAddress; // multiline free-format text
 
-    @Column(name = "emailaddresses", columnDefinition = "json")
-    private String emailAddresses; // TODO.spec: check if we can really add multiple. format: ["eins@...", "zwei@..."]
+    @Builder.Default
+    @Setter(AccessLevel.NONE)
+    @Type(JsonType.class)
+    @Column(name = "emailaddresses")
+    private Map<String, String> emailAddresses = new HashMap<>();
 
-    @Column(name = "phonenumbers", columnDefinition = "json")
-    private String phoneNumbers; // TODO.spec: check if we can really add multiple. format: { "office": "+49 40 12345-10", "fax": "+49 40 12345-05" }
+    @Transient
+    private PatchableMapWrapper<String> emailAddressesWrapper;
+
+    @Builder.Default
+    @Setter(AccessLevel.NONE)
+    @Type(JsonType.class)
+    @Column(name = "phonenumbers")
+    private Map<String, String> phoneNumbers = new HashMap<>();
+
+    @Transient
+    private PatchableMapWrapper<String> phoneNumbersWrapper;
+
+    public PatchableMapWrapper<String> getEmailAddresses() {
+        return PatchableMapWrapper.of(emailAddressesWrapper, (newWrapper) -> {emailAddressesWrapper = newWrapper; }, emailAddresses );
+    }
+
+    public void putEmailAddresses(Map<String, String> newEmailAddresses) {
+        getEmailAddresses().assign(newEmailAddresses);
+    }
+
+    public PatchableMapWrapper<String> getPhoneNumbers() {
+        return PatchableMapWrapper.of(phoneNumbersWrapper, (newWrapper) -> {phoneNumbersWrapper = newWrapper; }, phoneNumbers );
+    }
+
+    public void putPhoneNumbers(Map<String, String> newPhoneNumbers) {
+        getPhoneNumbers().assign(newPhoneNumbers);
+    }
 
     @Override
     public String toString() {

src/main/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactEntityPatcher.java

@@ -1,14 +1,17 @@
 package net.hostsharing.hsadminng.hs.office.contact;
 
 import net.hostsharing.hsadminng.mapper.EntityPatcher;
+import net.hostsharing.hsadminng.mapper.KeyValueMap;
 import net.hostsharing.hsadminng.mapper.OptionalFromJson;
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeContactPatchResource;
 
-class HsOfficeContactEntityPatch implements EntityPatcher<HsOfficeContactPatchResource> {
+import java.util.Optional;
+
+class HsOfficeContactEntityPatcher implements EntityPatcher<HsOfficeContactPatchResource> {
 
     private final HsOfficeContactEntity entity;
 
-    HsOfficeContactEntityPatch(final HsOfficeContactEntity entity) {
+    HsOfficeContactEntityPatcher(final HsOfficeContactEntity entity) {
         this.entity = entity;
     }
 
@@ -16,7 +19,9 @@ class HsOfficeContactEntityPatch implements EntityPatcher<HsOfficeContactPatchRe
     public void apply(final HsOfficeContactPatchResource resource) {
         OptionalFromJson.of(resource.getLabel()).ifPresent(entity::setLabel);
         OptionalFromJson.of(resource.getPostalAddress()).ifPresent(entity::setPostalAddress);
-        OptionalFromJson.of(resource.getEmailAddresses()).ifPresent(entity::setEmailAddresses);
-        OptionalFromJson.of(resource.getPhoneNumbers()).ifPresent(entity::setPhoneNumbers);
+        Optional.ofNullable(resource.getEmailAddresses())
+                .ifPresent(r -> entity.getEmailAddresses().patch(KeyValueMap.from(resource.getEmailAddresses())));
+        Optional.ofNullable(resource.getPhoneNumbers())
+                .ifPresent(r -> entity.getPhoneNumbers().patch(KeyValueMap.from(resource.getPhoneNumbers())));
     }
 }

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

@@ -170,7 +170,7 @@ public class HsOfficeDebitorEntity implements RbacObject, Stringifyable {
                         "vatCountryCode",
                         "vatBusiness",
                         "vatReverseCharge",
-                        "defaultPrefix" /* TODO.spec: do we want that updatable? */)
+                        "defaultPrefix")
                 .toRole("global", ADMIN).grantPermission(INSERT)
 
                 .importRootEntityAliasProxy("debitorRel", HsOfficeRelationEntity.class, usingCase(DEBITOR),

src/main/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationEntity.java

@@ -142,7 +142,7 @@ public class HsOfficeRelationEntity implements RbacObject, Stringifyable {
                                 with.permission(UPDATE);
                             })
                             .createSubRole(AGENT, (with) -> {
-                                // TODO.spec: we need relation:PROXY, to allow changing the relation contact.
+                                // TODO.rbac: we need relation:PROXY, to allow changing the relation contact.
                                 // the alternative would be to move this to the relation:ADMIN role,
                                 // but then the partner holder person could update the partner relation itself,
                                 // see partner entity.

src/main/java/net/hostsharing/hsadminng/mapper/KeyValueMap.java

@@ -5,9 +5,9 @@ import java.util.Map;
 public class KeyValueMap {
 
     @SuppressWarnings("unchecked")
-    public static Map<String, Object> from(final Object obj) {
-        if (obj instanceof Map<?, ?>) {
-            return (Map<String, Object>) obj;
+    public static <T> Map<String, T> from(final Object obj) {
+        if (obj == null || obj instanceof Map<?, ?>) {
+            return (Map<String, T>) obj;
         }
         throw new ClassCastException("Map expected, but got: " + obj);
     }

src/main/java/net/hostsharing/hsadminng/mapper/PatchMap.java

@@ -12,19 +12,19 @@ import static java.util.Arrays.stream;
  * This is a map which can take key-value-pairs where the value can be null
  * thus JSON nullable object structures from HTTP PATCH can be represented.
  */
-public class PatchMap extends TreeMap<String, Object> {
+public class PatchMap<T> extends TreeMap<String, T> {
 
-    public PatchMap(final ImmutablePair<String, Object>[] entries) {
+    public PatchMap(final ImmutablePair<String, T>[] entries) {
         stream(entries).forEach(r -> put(r.getKey(), r.getValue()));
     }
 
     @SafeVarargs
-    public static Map<String, Object> patchMap(final ImmutablePair<String, Object>... entries) {
+    public static <T> Map<String, T> patchMap(final ImmutablePair<String, Object>... entries) {
         return new PatchMap(entries);
     }
 
     @NotNull
-    public static ImmutablePair<String, Object> entry(final String key, final Object value) {
+    public static <T> ImmutablePair<String, T> entry(final String key, final T value) {
         return new ImmutablePair<>(key, value);
     }
 }

src/main/java/net/hostsharing/hsadminng/mapper/PatchableMapWrapper.java

@@ -6,31 +6,43 @@ import jakarta.validation.constraints.NotNull;
 import java.util.Collection;
 import java.util.Map;
 import java.util.Set;
+import java.util.function.Consumer;
 
+import static java.util.Optional.ofNullable;
 import static java.util.stream.Collectors.joining;
 
 /** This class wraps another (usually persistent) map and
  * supports applying `PatchMap` as well as a toString method with stable entry order.
  */
-public class PatchableMapWrapper implements Map<String, Object> {
+public class PatchableMapWrapper<T> implements Map<String, T> {
 
-    private final Map<String, Object> delegate;
+    private final Map<String, T> delegate;
 
-    public PatchableMapWrapper(final Map<String, Object> map) {
+    private PatchableMapWrapper(final Map<String, T> map) {
         delegate = map;
     }
 
+    public static <T> PatchableMapWrapper<T> of(final PatchableMapWrapper<T> currentWrapper, final Consumer<PatchableMapWrapper<T>> setWrapper, final  Map<String, T> target) {
+        return ofNullable(currentWrapper).orElseGet(() -> {
+            final var newWrapper = new PatchableMapWrapper<T>(target);
+            setWrapper.accept(newWrapper);
+            return newWrapper;
+        });
+    }
+
     @NotNull
-    public static ImmutablePair<String, Object> entry(final String key, final Object value) {
+    public static <E> ImmutablePair<String, E> entry(final String key, final E value) {
         return new ImmutablePair<>(key, value);
     }
 
-    public void assign(final Map<String, Object> entries) {
+    public void assign(final Map<String, T> entries) {
+        if (entries != null ) {
             delegate.clear();
             delegate.putAll(entries);
         }
+    }
 
-    public void patch(final Map<String, Object> patch) {
+    public void patch(final Map<String, T> patch) {
         patch.forEach((key, value) -> {
             if (value == null) {
                 remove(key);
@@ -73,22 +85,22 @@ public class PatchableMapWrapper implements Map<String, Object> {
     }
 
     @Override
-    public Object get(final Object key) {
+    public T get(final Object key) {
         return delegate.get(key);
     }
 
     @Override
-    public Object put(final String key, final Object value) {
+    public T put(final String key, final T value) {
         return delegate.put(key, value);
     }
 
     @Override
-    public Object remove(final Object key) {
+    public T remove(final Object key) {
         return delegate.remove(key);
     }
 
     @Override
-    public void putAll(final Map<? extends String, ?> m) {
+    public void putAll(final @NotNull Map<? extends String, ? extends T> m) {
         delegate.putAll(m);
     }
 
@@ -103,12 +115,12 @@ public class PatchableMapWrapper implements Map<String, Object> {
     }
 
     @Override
-    public Collection<Object> values() {
+    public Collection<T> values() {
         return delegate.values();
     }
 
     @Override
-    public Set<Entry<String, Object>> entrySet() {
+    public Set<Entry<String, T>> entrySet() {
         return delegate.entrySet();
     }
 }

src/main/java/net/hostsharing/hsadminng/stringify/Stringify.java

@@ -4,7 +4,9 @@ import net.hostsharing.hsadminng.errors.DisplayName;
 
 import jakarta.validation.constraints.NotNull;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.function.Function;
@@ -62,6 +64,7 @@ public final class Stringify<B> {
         final var propValues = props.stream()
                 .map(prop -> PropertyValue.of(prop, prop.getter.apply(object)))
                 .filter(Objects::nonNull)
+                .filter(PropertyValue::nonEmpty)
                 .map(propVal -> {
                     if (propVal.rawValue instanceof Stringifyable stringifyable) {
                         return new PropertyValue<>(propVal.prop, propVal.rawValue, stringifyable.toShortString());
@@ -110,5 +113,12 @@ public final class Stringify<B> {
         static <B> PropertyValue<B> of(Property<B> prop, Object rawValue) {
             return rawValue != null ? new PropertyValue<>(prop, rawValue, rawValue.toString()) : null;
         }
+
+        boolean nonEmpty() {
+            return rawValue != null &&
+                    (!(rawValue instanceof Collection<?> c) || !c.isEmpty()) &&
+                    (!(rawValue instanceof Map<?,?> m) || !m.isEmpty()) &&
+                    (!(rawValue instanceof String s) || !s.isEmpty());
+        }
     }
 }

src/main/resources/api-definition/hs-office/hs-office-contact-schemas.yaml

@@ -14,9 +14,9 @@ components:
                 postalAddress:
                     type: string
                 emailAddresses:
-                    type: string
+                    $ref: '#/components/schemas/HsOfficeContactEmailAddresses'
                 phoneNumbers:
-                    type: string
+                    $ref: '#/components/schemas/HsOfficeContactPhoneNumbers'
 
         HsOfficeContactInsert:
             type: object
@@ -26,9 +26,9 @@ components:
                 postalAddress:
                     type: string
                 emailAddresses:
-                    type: string
+                    $ref: '#/components/schemas/HsOfficeContactEmailAddresses'
                 phoneNumbers:
-                    type: string
+                    $ref: '#/components/schemas/HsOfficeContactPhoneNumbers'
             required:
                 - label
 
@@ -42,8 +42,31 @@ components:
                     type: string
                     nullable: true
                 emailAddresses:
-                    type: string
-                    nullable: true
+                    $ref: '#/components/schemas/HsOfficeContactEmailAddresses'
                 phoneNumbers:
+                    $ref: '#/components/schemas/HsOfficeContactPhoneNumbers'
+
+        HsOfficeContactEmailAddresses:
+            # forces generating a java.lang.Object containing a Map, instead of class HsOfficeContactEmailAddresses
+            anyOf:
+                - type: object
+                  additionalProperties: true
+
+        HsOfficeContactPhoneNumbers:
+            # forces generating a java.lang.Object containing a Map, instead of class HsOfficeContactEmailAddresses
+            anyOf:
+                - type: object
+                  properties:
+                      phone_office:
                             type: string
                             nullable: true
+                      phone_private:
+                          type: string
+                          nullable: true
+                      phone_mobile:
+                          type: string
+                          nullable: true
+                      fax:
+                          type: string
+                          nullable: true
+                  additionalProperties: false

src/main/resources/db/changelog/1-rbac/1051-rbac-user-grant.sql

@@ -63,7 +63,7 @@ begin
     insert
         into RbacGrants (grantedByRoleUuid, ascendantUuid, descendantUuid, assumed)
         values (grantedByRoleUuid, userUuid, grantedRoleUuid, doAssume);
-    -- TODO.spec: What should happen on mupltiple grants? What if options (doAssume) are not the same?
+    -- TODO.impl: What should happen on mupltiple grants? What if options (doAssume) are not the same?
     --      Most powerful or latest grant wins? What about managed?
     -- on conflict do nothing; -- allow granting multiple times
 end; $$;

src/main/resources/db/changelog/1-rbac/1057-rbac-role-builder.sql

@@ -52,7 +52,7 @@ begin
     if cardinality(userUuids) > 0 then
         -- direct grants to users need a grantedByRole which can revoke the grant
         if grantedByRole is null then
-            userGrantsByRoleUuid := roleUuid; -- TODO.spec: or do we want to require an explicit userGrantsByRoleUuid?
+            userGrantsByRoleUuid := roleUuid; -- TODO.impl: or do we want to require an explicit userGrantsByRoleUuid?
         else
             userGrantsByRoleUuid := getRoleId(grantedByRole);
         end if;

src/main/resources/db/changelog/5-hs-office/501-contact/5010-hs-office-contact.sql

@@ -10,8 +10,8 @@ create table if not exists hs_office_contact
     version        int not null default 0,
     label          varchar(128) not null,
     postalAddress  text,
-    emailAddresses text, -- TODO.feat: change to json
-    phoneNumbers   text  -- TODO.feat: change to json
+    emailAddresses jsonb not null,
+    phoneNumbers   jsonb not null
 );
 --//
 

src/main/resources/db/changelog/5-hs-office/501-contact/5018-hs-office-contact-test-data.sql

@@ -12,6 +12,7 @@ create or replace procedure createHsOfficeContactTestData(contLabel varchar)
     language plpgsql as $$
 declare
     currentTask     varchar;
+    postalAddr      varchar;
     emailAddr       varchar;
 begin
     currentTask = 'creating contact test-data ' || contLabel;
@@ -22,14 +23,17 @@ begin
     perform createRbacUser(emailAddr);
     call defineContext(currentTask, null, emailAddr);
 
+    postalAddr := E'Vorname Nachname\nStraße Hnr\nPLZ Stadt';
+
     raise notice 'creating test contact: %', contLabel;
     insert
         into hs_office_contact (label, postaladdress, emailaddresses, phonenumbers)
-        values (contLabel, $address$
-Vorname Nachname
-Straße Hnr
-PLZ Stadt
-$address$, emailAddr, '+49 123 1234567');
+        values (
+            contLabel,
+            postalAddr,
+            ('{ "main": "' || emailAddr || '" }')::jsonb,
+            ('{ "phone_office": "+49 123 1234567" }')::jsonb
+        );
 end; $$;
 --//
 

src/main/resources/db/changelog/5-hs-office/506-debitor/5060-hs-office-debitor.sql

@@ -11,7 +11,7 @@ create table hs_office_debitor
     debitorNumberSuffix     char(2) not null check (debitorNumberSuffix::text ~ '^[0-9][0-9]$'),
     debitorRelUuid          uuid not null references hs_office_relation(uuid),
     billable                boolean not null default true,
-    vatId                   varchar(24), -- TODO.spec: here or in person?
+    vatId                   varchar(24),
     vatCountryCode          varchar(2),
     vatBusiness             boolean not null,
     vatReverseCharge        boolean not null,

src/test/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactControllerAcceptanceTest.java

@@ -19,6 +19,7 @@ import org.springframework.transaction.annotation.Transactional;
 
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.PersistenceContext;
+import java.util.Map;
 import java.util.UUID;
 
 import static net.hostsharing.hsadminng.rbac.test.IsValidUuidMatcher.isUuidValid;
@@ -103,7 +104,9 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                         .body("""
                                {
                                    "label": "Temp Contact",
-                                   "emailAddresses": "test@example.org"
+                                   "emailAddresses": {
+                                        "main": "test@example.org"
+                                   }
                                  }
                             """)
                         .port(port)
@@ -114,7 +117,7 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                         .contentType(ContentType.JSON)
                         .body("uuid", isUuidValid())
                         .body("label", is("Temp Contact"))
-                        .body("emailAddresses", is("test@example.org"))
+                        .body("emailAddresses", is(Map.of("main", "test@example.org")))
                         .header("Location", startsWith("http://localhost"))
                     .extract().header("Location");  // @formatter:on
 
@@ -181,8 +184,12 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .body("", lenientlyEquals("""
                     {
                         "label": "first contact",
-                         "emailAddresses": "contact-admin@firstcontact.example.com",
-                         "phoneNumbers": "+49 123 1234567"
+                        "emailAddresses": {
+                            "main": "contact-admin@firstcontact.example.com"
+                        },
+                        "phoneNumbers": {
+                            "phone_office": "+49 123 1234567"
+                        }
                      }
                     """)); // @formatter:on
         }
@@ -204,9 +211,13 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .body("""
                        {
                            "label": "Temp patched contact",
-                           "emailAddresses": "patched@example.org",
+                           "emailAddresses": {
+                                "main": "patched@example.org"
+                           },
                            "postalAddress": "Patched Address",
-                           "phoneNumbers": "+01 100 123456"
+                           "phoneNumbers": {
+                                "phone_office": "+01 100 123456"
+                            }
                        }
                        """)
                     .port(port)
@@ -217,9 +228,9 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .contentType(ContentType.JSON)
                     .body("uuid", isUuidValid())
                     .body("label", is("Temp patched contact"))
-                    .body("emailAddresses", is("patched@example.org"))
+                    .body("emailAddresses", is(Map.of("main", "patched@example.org")))
                     .body("postalAddress", is("Patched Address"))
-                    .body("phoneNumbers", is("+01 100 123456"));
+                    .body("phoneNumbers", is(Map.of("phone_office", "+01 100 123456")));
                 // @formatter:on
 
             // finally, the contact is actually updated
@@ -227,9 +238,9 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
             assertThat(contactRepo.findByUuid(givenContact.getUuid())).isPresent().get()
                     .matches(person -> {
                         assertThat(person.getLabel()).isEqualTo("Temp patched contact");
-                        assertThat(person.getEmailAddresses()).isEqualTo("patched@example.org");
+                        assertThat(person.getEmailAddresses()).containsExactlyEntriesOf(Map.of("main", "patched@example.org"));
                         assertThat(person.getPostalAddress()).isEqualTo("Patched Address");
-                        assertThat(person.getPhoneNumbers()).isEqualTo("+01 100 123456");
+                        assertThat(person.getPhoneNumbers()).containsExactlyEntriesOf(Map.of("phone_office", "+01 100 123456"));
                         return true;
                     });
         }
@@ -246,8 +257,12 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .contentType(ContentType.JSON)
                     .body("""
                        {
-                           "emailAddresses": "patched@example.org",
-                           "phoneNumbers": "+01 100 123456"
+                           "emailAddresses": {
+                                "main": "patched@example.org"
+                           },
+                           "phoneNumbers": {
+                                "phone_office": "+01 100 123456"
+                            }
                        }
                             """)
                     .port(port)
@@ -258,18 +273,18 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .contentType(ContentType.JSON)
                     .body("uuid", isUuidValid())
                     .body("label", is(givenContact.getLabel()))
-                    .body("emailAddresses", is("patched@example.org"))
+                    .body("emailAddresses", is(Map.of("main", "patched@example.org")))
                     .body("postalAddress", is(givenContact.getPostalAddress()))
-                    .body("phoneNumbers", is("+01 100 123456"));
+                    .body("phoneNumbers", is(Map.of("phone_office", "+01 100 123456")));
             // @formatter:on
 
             // finally, the contact is actually updated
             assertThat(contactRepo.findByUuid(givenContact.getUuid())).isPresent().get()
                     .matches(person -> {
                         assertThat(person.getLabel()).isEqualTo(givenContact.getLabel());
-                        assertThat(person.getEmailAddresses()).isEqualTo("patched@example.org");
+                        assertThat(person.getEmailAddresses()).containsExactlyEntriesOf(Map.of("main", "patched@example.org"));
                         assertThat(person.getPostalAddress()).isEqualTo(givenContact.getPostalAddress());
-                        assertThat(person.getPhoneNumbers()).isEqualTo("+01 100 123456");
+                        assertThat(person.getPhoneNumbers()).containsExactlyEntriesOf(Map.of("phone_office", "+01 100 123456"));
                         return true;
                     });
         }
@@ -340,9 +355,9 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
             final var newContact = HsOfficeContactEntity.builder()
                     .uuid(UUID.randomUUID())
                     .label("Temp from " + Context.getCallerMethodNameFromStackFrame(1) )
-                    .emailAddresses(RandomStringUtils.randomAlphabetic(10) + "@example.org")
+                    .emailAddresses(Map.of("main", RandomStringUtils.randomAlphabetic(10) + "@example.org"))
                     .postalAddress("Postal Address " + RandomStringUtils.randomAlphabetic(10))
-                    .phoneNumbers("+01 200 " + RandomStringUtils.randomNumeric(8))
+                    .phoneNumbers(Map.of("phone_office", "+01 200 " + RandomStringUtils.randomNumeric(8)))
                     .build();
 
             return contactRepo.save(newContact);

src/test/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactEntityPatcherUnitTest.java

@@ -4,9 +4,12 @@ import net.hostsharing.hsadminng.rbac.test.PatchUnitTestBase;
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeContactPatchResource;
 import org.junit.jupiter.api.TestInstance;
 
+import java.util.Map;
 import java.util.UUID;
 import java.util.stream.Stream;
 
+import static net.hostsharing.hsadminng.mapper.PatchMap.entry;
+import static net.hostsharing.hsadminng.mapper.PatchMap.patchMap;
 import static org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS;
 
 @TestInstance(PER_CLASS)
@@ -16,15 +19,42 @@ class HsOfficeContactEntityPatcherUnitTest extends PatchUnitTestBase<
         > {
 
     private static final UUID INITIAL_CONTACT_UUID = UUID.randomUUID();
+    private static final  Map<String, String> PATCH_EMAIL_ADDRESSES = patchMap(
+            entry("main", "patched@example.com"),
+            entry("paul", null),
+            entry("suse", "suse@example.com")
+    );
+    private static final  Map<String, String> PATCHED_EMAIL_ADDRESSES = patchMap(
+            entry("main", "patched@example.com"),
+            entry("suse", "suse@example.com"),
+            entry("mila", "mila@example.com")
+    );
+
+    private static final  Map<String, String> PATCH_PHONE_NUMBERS = patchMap(
+            entry("phone_mobile", null),
+            entry("phone_private", "+49 40 987654321"),
+            entry("fax",  "+49 40 12345-99")
+    );
+    private static final  Map<String, String> PATCHED_PHONE_NUMBERS = patchMap(
+            entry("phone_office", "+49 40 12345-00"),
+            entry("phone_private", "+49 40 987654321"),
+            entry("fax",  "+49 40 12345-99")
+    );
 
     @Override
     protected HsOfficeContactEntity newInitialEntity() {
         final var entity = new HsOfficeContactEntity();
         entity.setUuid(INITIAL_CONTACT_UUID);
         entity.setLabel("initial label");
-        entity.setEmailAddresses("initial@example.org");
-        entity.setPhoneNumbers("initial postal address");
-        entity.setPostalAddress("+01 100 123456789");
+        entity.putEmailAddresses(Map.ofEntries(
+                entry("main", "initial@example.org"),
+                entry("paul", "paul@example.com"),
+                entry("mila", "mila@example.com")));
+        entity.putPhoneNumbers(Map.ofEntries(
+                entry("phone_office", "+49 40 12345-00"),
+                entry("phone_mobile", "+49 1555 1234567"),
+                entry("fax",  "+49 40 12345-90")));
+        entity.setPostalAddress("Initialstraße 50\n20000 Hamburg");
         return entity;
     }
 
@@ -34,8 +64,8 @@ class HsOfficeContactEntityPatcherUnitTest extends PatchUnitTestBase<
     }
 
     @Override
-    protected HsOfficeContactEntityPatch createPatcher(final HsOfficeContactEntity entity) {
-        return new HsOfficeContactEntityPatch(entity);
+    protected HsOfficeContactEntityPatcher createPatcher(final HsOfficeContactEntity entity) {
+        return new HsOfficeContactEntityPatcher(entity);
     }
 
     @Override
@@ -46,16 +76,20 @@ class HsOfficeContactEntityPatcherUnitTest extends PatchUnitTestBase<
                         HsOfficeContactPatchResource::setLabel,
                         "patched label",
                         HsOfficeContactEntity::setLabel),
-                new JsonNullableProperty<>(
-                        "emailAddresses",
+                new SimpleProperty<>(
+                        "resources",
                         HsOfficeContactPatchResource::setEmailAddresses,
-                        "patched trade name",
-                        HsOfficeContactEntity::setEmailAddresses),
-                new JsonNullableProperty<>(
-                        "phoneNumbers",
+                        PATCH_EMAIL_ADDRESSES,
+                        HsOfficeContactEntity::putEmailAddresses,
+                        PATCHED_EMAIL_ADDRESSES)
+                        .notNullable(),
+                new SimpleProperty<>(
+                        "resources",
                         HsOfficeContactPatchResource::setPhoneNumbers,
-                        "patched family name",
-                        HsOfficeContactEntity::setPhoneNumbers),
+                        PATCH_PHONE_NUMBERS,
+                        HsOfficeContactEntity::putPhoneNumbers,
+                        PATCHED_PHONE_NUMBERS)
+                        .notNullable(),
                 new JsonNullableProperty<>(
                         "patched given name",
                         HsOfficeContactPatchResource::setPostalAddress,

src/test/java/net/hostsharing/hsadminng/hs/office/contact/TestHsOfficeContact.java

@@ -1,5 +1,6 @@
 package net.hostsharing.hsadminng.hs.office.contact;
 
+import java.util.Map;
 
 public class TestHsOfficeContact {
 
@@ -9,7 +10,7 @@ public class TestHsOfficeContact {
         return HsOfficeContactEntity.builder()
                 .label(label)
                 .postalAddress("address of " + label)
-                .emailAddresses(emailAddr)
+                .emailAddresses(Map.of("main", emailAddr))
                 .build();
     }
 }

src/test/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorControllerAcceptanceTest.java

@@ -107,8 +107,8 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                           "mark": null,
                           "contact": {
                             "label": "first contact",
-                            "emailAddresses": "contact-admin@firstcontact.example.com",
-                            "phoneNumbers": "+49 123 1234567"
+                            "emailAddresses": { "main": "contact-admin@firstcontact.example.com" },
+                            "phoneNumbers": { "phone_office": "+49 123 1234567" }
                           }
                         },
                         "debitorNumber": 1000111,
@@ -132,8 +132,8 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                             "mark": null,
                             "contact": {
                               "label": "first contact",
-                              "emailAddresses": "contact-admin@firstcontact.example.com",
-                              "phoneNumbers": "+49 123 1234567"
+                              "emailAddresses": { "main": "contact-admin@firstcontact.example.com" },
+                              "phoneNumbers": { "phone_office": "+49 123 1234567" }
                             }
                           },
                           "details": {
@@ -162,7 +162,9 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                           "anchor": {"tradeName": "Second e.K."},
                           "holder": {"tradeName": "Second e.K."},
                           "type": "DEBITOR",
-                          "contact": {"emailAddresses": "contact-admin@secondcontact.example.com"}
+                          "contact": {
+                            "emailAddresses": { "main": "contact-admin@secondcontact.example.com" }
+                           }
                         },
                         "debitorNumber": 1000212,
                         "debitorNumberSuffix": 12,
@@ -172,7 +174,9 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                             "anchor": {"tradeName": "Hostsharing eG"},
                             "holder": {"tradeName": "Second e.K."},
                             "type": "PARTNER",
-                            "contact": {"emailAddresses": "contact-admin@secondcontact.example.com"}
+                            "contact": {
+                                "emailAddresses": { "main": "contact-admin@secondcontact.example.com" }
+                            }
                           },
                           "details": {
                             "registrationOffice": "Hamburg",
@@ -192,7 +196,9 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                           "anchor": {"tradeName": "Third OHG"},
                           "holder": {"tradeName": "Third OHG"},
                           "type": "DEBITOR",
-                          "contact": {"emailAddresses": "contact-admin@thirdcontact.example.com"}
+                          "contact": {
+                                "emailAddresses": { "main": "contact-admin@thirdcontact.example.com" }
+                            }
                         },
                         "debitorNumber": 1000313,
                         "debitorNumberSuffix": 13,
@@ -202,7 +208,9 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                             "anchor": {"tradeName": "Hostsharing eG"},
                             "holder": {"tradeName": "Third OHG"},
                             "type": "PARTNER",
-                            "contact": {"emailAddresses": "contact-admin@thirdcontact.example.com"}
+                            "contact": {
+                                "emailAddresses": { "main": "contact-admin@thirdcontact.example.com" }
+                            }
                           },
                           "details": {
                             "registrationOffice": "Hamburg",
@@ -223,7 +231,7 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
         }
 
         @Test
-        void globalAdmin_withoutAssumedRoles_canFindDebitorDebitorByDebitorNumber() throws JSONException {
+        void globalAdmin_withoutAssumedRoles_canFindDebitorDebitorByDebitorNumber() {
 
             RestAssured // @formatter:off
                     .given()
@@ -456,9 +464,9 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                              "type": "DEBITOR",
                              "contact": {
                                  "label": "first contact",
-                                 "postalAddress": "\\nVorname Nachname\\nStraße Hnr\\nPLZ Stadt\\n",
-                                 "emailAddresses": "contact-admin@firstcontact.example.com",
-                                 "phoneNumbers": "+49 123 1234567"
+                                 "postalAddress": "Vorname Nachname\\nStraße Hnr\\nPLZ Stadt",
+                                 "emailAddresses": { "main": "contact-admin@firstcontact.example.com" },
+                                 "phoneNumbers": { "phone_office":  "+49 123 1234567" }
                              }
                          },
                          "debitorNumber": 1000111,
@@ -472,9 +480,9 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                                  "mark": null,
                                  "contact": {
                                      "label": "first contact",
-                                     "postalAddress": "\\nVorname Nachname\\nStraße Hnr\\nPLZ Stadt\\n",
-                                     "emailAddresses": "contact-admin@firstcontact.example.com",
-                                     "phoneNumbers": "+49 123 1234567"
+                                     "postalAddress": "Vorname Nachname\\nStraße Hnr\\nPLZ Stadt",
+                                     "emailAddresses": { "main": "contact-admin@firstcontact.example.com" },
+                                     "phoneNumbers": { "phone_office": "+49 123 1234567" }
                                  }
                              },
                              "details": {

src/test/java/net/hostsharing/hsadminng/hs/office/migration/ImportOfficeData.java

@@ -240,29 +240,29 @@ public class ImportOfficeData extends ContextBasedTest {
                 """);
         assertThat(toFormattedString(contacts)).isEqualToIgnoringWhitespace("""
                 {
-                    1101=contact(label='Herr Michael Mellies ', emailAddresses='mih@example.org'),
-                    1200=contact(label='JM e.K.', emailAddresses='jm-ex-partner@example.org'),
-                    1201=contact(label='Frau Dr. Jenny Meyer-Billing , JM GmbH', emailAddresses='jm-billing@example.org'),
-                    1202=contact(label='Herr Andrew Meyer-Operation , JM GmbH', emailAddresses='am-operation@example.org'),
-                    1203=contact(label='Herr Philip Meyer-Contract , JM GmbH', emailAddresses='pm-partner@example.org'),
-                    1204=contact(label='Frau Tammy Meyer-VIP , JM GmbH', emailAddresses='tm-vip@example.org'),
-                    1301=contact(label='Petra Schmidt , Test PS', emailAddresses='ps@example.com'),
-                    1401=contact(label='Frau Frauke Fanninga ', emailAddresses='ff@example.org'),
-                    1501=contact(label='Frau Cecilia Camus ', emailAddresses='cc@example.org')
+                    1101=contact(label='Herr Michael Mellies ', emailAddresses='{ main: mih@example.org }'),
+                    1200=contact(label='JM e.K.', emailAddresses='{ main: jm-ex-partner@example.org }'),
+                    1201=contact(label='Frau Dr. Jenny Meyer-Billing , JM GmbH', emailAddresses='{ main: jm-billing@example.org }'),
+                    1202=contact(label='Herr Andrew Meyer-Operation , JM GmbH', emailAddresses='{ main: am-operation@example.org }'),
+                    1203=contact(label='Herr Philip Meyer-Contract , JM GmbH', emailAddresses='{ main: pm-partner@example.org }'),
+                    1204=contact(label='Frau Tammy Meyer-VIP , JM GmbH', emailAddresses='{ main: tm-vip@example.org }'),
+                    1301=contact(label='Petra Schmidt , Test PS', emailAddresses='{ main: ps@example.com }'),
+                    1401=contact(label='Frau Frauke Fanninga ', emailAddresses='{ main: ff@example.org }'),
+                    1501=contact(label='Frau Cecilia Camus ', emailAddresses='{ main: cc@example.org }')
                 }
                 """);
         assertThat(toFormattedString(persons)).isEqualToIgnoringWhitespace("""
                 {
                     1=person(personType='LP', tradeName='Hostsharing eG'),
-                    1101=person(personType='NP', tradeName='', familyName='Mellies', givenName='Michael'),
-                    1200=person(personType='LP', tradeName='JM e.K.', familyName='', givenName=''),
+                    1101=person(personType='NP', familyName='Mellies', givenName='Michael'),
+                    1200=person(personType='LP', tradeName='JM e.K.'),
                     1201=person(personType='LP', tradeName='JM GmbH', familyName='Meyer-Billing', givenName='Jenny'),
                     1202=person(personType='LP', tradeName='JM GmbH', familyName='Meyer-Operation', givenName='Andrew'),
                     1203=person(personType='LP', tradeName='JM GmbH', familyName='Meyer-Contract', givenName='Philip'),
                     1204=person(personType='LP', tradeName='JM GmbH', familyName='Meyer-VIP', givenName='Tammy'),
                     1301=person(personType='??', tradeName='Test PS', familyName='Schmidt', givenName='Petra'),
-                    1401=person(personType='NP', tradeName='', familyName='Fanninga', givenName='Frauke'),
-                    1501=person(personType='NP', tradeName='', familyName='Camus', givenName='Cecilia')
+                    1401=person(personType='NP', familyName='Fanninga', givenName='Frauke'),
+                    1501=person(personType='NP', familyName='Camus', givenName='Cecilia')
                  }
                 """);
         assertThat(toFormattedString(debitors)).isEqualToIgnoringWhitespace("""
@@ -363,10 +363,10 @@ public class ImportOfficeData extends ContextBasedTest {
 
         assertThat(toFormattedString(coopShares)).isEqualToIgnoringWhitespace("""
                 {
-                    33443=CoopShareTransaction(M-1001700: 2000-12-06, SUBSCRIPTION, 20, legacy data import, initial share subscription),
-                    33451=CoopShareTransaction(M-1002000: 2000-12-06, SUBSCRIPTION, 2, legacy data import, initial share subscription),
-                    33701=CoopShareTransaction(M-1001700: 2005-01-10, SUBSCRIPTION, 40, legacy data import, increase),
-                    33810=CoopShareTransaction(M-1002000: 2016-12-31, CANCELLATION, 22, legacy data import, membership ended)
+                    33443=CoopShareTransaction(M-1001700: 2000-12-06, SUBSCRIPTION, 20, 1001700, initial share subscription),
+                    33451=CoopShareTransaction(M-1002000: 2000-12-06, SUBSCRIPTION, 2, 1002000, initial share subscription),
+                    33701=CoopShareTransaction(M-1001700: 2005-01-10, SUBSCRIPTION, 40, 1001700, increase),
+                    33810=CoopShareTransaction(M-1002000: 2016-12-31, CANCELLATION, 22, 1002000, membership ended)
                  }
                 """);
     }
@@ -390,16 +390,16 @@ public class ImportOfficeData extends ContextBasedTest {
 
         assertThat(toFormattedString(coopAssets)).isEqualToIgnoringWhitespace("""
                 {
-                    30000=CoopAssetsTransaction(M-1001700: 2000-12-06, DEPOSIT, 1280.00, legacy data import, for subscription A),
-                    31000=CoopAssetsTransaction(M-1002000: 2000-12-06, DEPOSIT, 128.00, legacy data import, for subscription B),
-                    32000=CoopAssetsTransaction(M-1001700: 2005-01-10, DEPOSIT, 2560.00, legacy data import, for subscription C),
-                    33001=CoopAssetsTransaction(M-1001700: 2005-01-10, TRANSFER, -512.00, legacy data import, for transfer to 10),
-                    33002=CoopAssetsTransaction(M-1002000: 2005-01-10, ADOPTION, 512.00, legacy data import, for transfer from 7),
-                    34001=CoopAssetsTransaction(M-1002000: 2016-12-31, CLEARING, -8.00, legacy data import, for cancellation D),
-                    34002=CoopAssetsTransaction(M-1002000: 2016-12-31, DISBURSAL, -100.00, legacy data import, for cancellation D),
-                    34003=CoopAssetsTransaction(M-1002000: 2016-12-31, LOSS, -20.00, legacy data import, for cancellation D),
-                    35001=CoopAssetsTransaction(M-1909000: 2024-01-15, DEPOSIT, 128.00, legacy data import, for subscription E),
-                    35002=CoopAssetsTransaction(M-1909000: 2024-01-20, ADJUSTMENT, -128.00, legacy data import, chargeback for subscription E, M-1909000:DEP:+128.00)
+                    30000=CoopAssetsTransaction(M-1001700: 2000-12-06, DEPOSIT, 1280.00, 1001700, for subscription A),
+                    31000=CoopAssetsTransaction(M-1002000: 2000-12-06, DEPOSIT, 128.00, 1002000, for subscription B),
+                    32000=CoopAssetsTransaction(M-1001700: 2005-01-10, DEPOSIT, 2560.00, 1001700, for subscription C),
+                    33001=CoopAssetsTransaction(M-1001700: 2005-01-10, TRANSFER, -512.00, 1001700, for transfer to 10),
+                    33002=CoopAssetsTransaction(M-1002000: 2005-01-10, ADOPTION, 512.00, 1002000, for transfer from 7),
+                    34001=CoopAssetsTransaction(M-1002000: 2016-12-31, CLEARING, -8.00, 1002000, for cancellation D),
+                    34002=CoopAssetsTransaction(M-1002000: 2016-12-31, DISBURSAL, -100.00, 1002000, for cancellation D),
+                    34003=CoopAssetsTransaction(M-1002000: 2016-12-31, LOSS, -20.00, 1002000, for cancellation D),
+                    35001=CoopAssetsTransaction(M-1909000: 2024-01-15, DEPOSIT, 128.00, 1909000, for subscription E),
+                    35002=CoopAssetsTransaction(M-1909000: 2024-01-20, ADJUSTMENT, -128.00, 1909000, chargeback for subscription E, M-1909000:DEP:+128.00)
                 }
                 """);
     }
@@ -810,7 +810,7 @@ public class ImportOfficeData extends ContextBasedTest {
                             )
                             .shareCount(rec.getInteger("quantity"))
                             .comment( rec.getString("comment"))
-                            .reference("legacy data import") // TODO.spec: or use value from comment column?
+                            .reference(member.getMemberNumber().toString())
                             .build();
 
                     if (shareTransaction.getTransactionType() == HsOfficeCoopSharesTransactionType.ADJUSTMENT) {
@@ -867,7 +867,7 @@ public class ImportOfficeData extends ContextBasedTest {
                             .transactionType(assetTypeMapping.get(rec.getString("action")))
                             .assetValue(rec.getBigDecimal("amount"))
                             .comment(rec.getString("comment"))
-                            .reference("legacy data import") // TODO.spec: or use value from comment column?
+                            .reference(member.getMemberNumber().toString())
                             .build();
 
                     if (assetTransaction.getTransactionType() == HsOfficeCoopAssetsTransactionType.ADJUSTMENT) {
@@ -1092,9 +1092,9 @@ public class ImportOfficeData extends ContextBasedTest {
                 contactRecord.getString("first_name"),
                 contactRecord.getString("last_name"),
                 contactRecord.getString("firma")));
-        contact.setEmailAddresses(contactRecord.getString("email"));
+        contact.putEmailAddresses( Map.of("main", contactRecord.getString("email")));
         contact.setPostalAddress(toAddress(contactRecord));
-        contact.setPhoneNumbers(toPhoneNumbers(contactRecord));
+        contact.putPhoneNumbers(toPhoneNumbers(contactRecord));
 
         contacts.put(contactRecord.getInteger("contact_id"), contact);
         return contact;
@@ -1120,17 +1120,17 @@ public class ImportOfficeData extends ContextBasedTest {
         return record;
     }
 
-    private String toPhoneNumbers(final Record rec) {
-        final var result = new StringBuilder("{\n");
+    private Map<String, String> toPhoneNumbers(final Record rec) {
+        final var phoneNumbers = new LinkedHashMap<String, String>();
         if (isNotBlank(rec.getString("phone_private")))
-            result.append("    \"private\": " + "\"" + rec.getString("phone_private") + "\",\n");
+            phoneNumbers.put("phone_private", rec.getString("phone_private"));
         if (isNotBlank(rec.getString("phone_office")))
-            result.append("    \"office\": " + "\"" + rec.getString("phone_office") + "\",\n");
+            phoneNumbers.put("phone_office", rec.getString("phone_office"));
         if (isNotBlank(rec.getString("phone_mobile")))
-            result.append("    \"mobile\": " + "\"" + rec.getString("phone_mobile") + "\",\n");
+            phoneNumbers.put("phone_mobile", rec.getString("phone_mobile"));
         if (isNotBlank(rec.getString("fax")))
-            result.append("    \"fax\": " + "\"" + rec.getString("fax") + "\",\n");
-        return (result + "}").replace("\",\n}", "\"\n}");
+            phoneNumbers.put("fax", rec.getString("fax"));
+        return phoneNumbers;
     }
 
     private String toAddress(final Record rec) {

src/test/java/net/hostsharing/hsadminng/rbac/test/pac/TestPackageEntityUnitTest.java

@@ -14,6 +14,19 @@ class TestPackageEntityUnitTest {
                %%{init:{'flowchart':{'htmlLabels':false}}}%%
                flowchart TB
 
+               subgraph customer["`**customer**`"]
+                   direction TB
+                   style customer fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+               
+                   subgraph customer:roles[ ]
+                       style customer:roles fill:#99bcdb,stroke:white
+               
+                       role:customer:OWNER[[customer:OWNER]]
+                       role:customer:ADMIN[[customer:ADMIN]]
+                       role:customer:TENANT[[customer:TENANT]]
+                   end
+               end
+                
                subgraph package["`**package**`"]
                    direction TB
                    style package fill:#dd4901,stroke:#274d6e,stroke-width:8px
@@ -36,19 +49,6 @@ class TestPackageEntityUnitTest {
                    end
                end
 
-               subgraph customer["`**customer**`"]
-                   direction TB
-                   style customer fill:#99bcdb,stroke:#274d6e,stroke-width:8px
-               
-                   subgraph customer:roles[ ]
-                       style customer:roles fill:#99bcdb,stroke:white
-               
-                       role:customer:OWNER[[customer:OWNER]]
-                       role:customer:ADMIN[[customer:ADMIN]]
-                       role:customer:TENANT[[customer:TENANT]]
-                   end
-               end
-
                %% granting roles to roles
                role:global:ADMIN -.->|XX| role:customer:OWNER
                role:customer:OWNER -.-> role:customer:ADMIN