diff --git a/pom.xml b/pom.xml
index 174fa07079..59d08a375c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -252,6 +252,25 @@
         <version>${resteasy.version}</version>
       </dependency>
 
+      <dependency>
+        <groupId>javax.ws.rs</groupId>
+        <artifactId>javax.ws.rs-api</artifactId>
+        <version>${jaxrs.version}</version>
+      </dependency>
+
+      <dependency>
+        <groupId>com.fasterxml.jackson.core</groupId>
+        <artifactId>jackson-core</artifactId>
+        <version>${jackson.version}</version>
+      </dependency>
+
+      <dependency>
+        <groupId>com.fasterxml.jackson.core</groupId>
+        <artifactId>jackson-databind</artifactId>
+        <version>${jackson.version}</version>
+      </dependency>
+
+
     </dependencies>
   </dependencyManagement>
 
diff --git a/scm-core/pom.xml b/scm-core/pom.xml
index f19ad7453e..a25214da7e 100644
--- a/scm-core/pom.xml
+++ b/scm-core/pom.xml
@@ -85,17 +85,32 @@
     <dependency>
       <groupId>javax.ws.rs</groupId>
       <artifactId>javax.ws.rs-api</artifactId>
-      <version>${jaxrs.version}</version>
     </dependency>
+
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-core</artifactId>
-      <version>${jackson.version}</version>
     </dependency>
+
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
-      <version>${jackson.version}</version>
+    </dependency>
+
+    <dependency>
+      <groupId>de.otto.edison</groupId>
+      <artifactId>edison-hal</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>org.mapstruct</groupId>
+      <artifactId>mapstruct-jdk8</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>org.mapstruct</groupId>
+      <artifactId>mapstruct-processor</artifactId>
+      <scope>provided</scope>
     </dependency>
 
     <!-- event bus -->
diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/BaseMapper.java b/scm-core/src/main/java/sonia/scm/api/v2/resources/BaseMapper.java
similarity index 77%
rename from scm-webapp/src/main/java/sonia/scm/api/v2/resources/BaseMapper.java
rename to scm-core/src/main/java/sonia/scm/api/v2/resources/BaseMapper.java
index 94d884c437..a3f83d21ab 100644
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/BaseMapper.java
+++ b/scm-core/src/main/java/sonia/scm/api/v2/resources/BaseMapper.java
@@ -2,11 +2,10 @@ package sonia.scm.api.v2.resources;
 
 import de.otto.edison.hal.HalRepresentation;
 import org.mapstruct.Mapping;
-import sonia.scm.ModelObject;
 
 import java.time.Instant;
 
-abstract class BaseMapper<T extends ModelObject, D extends HalRepresentation> {
+abstract class BaseMapper<T, D extends HalRepresentation> {
 
   @Mapping(target = "attributes", ignore = true) // We do not map HAL attributes
   public abstract D map(T modelObject);
diff --git a/scm-core/src/main/java/sonia/scm/api/v2/resources/CollectionToDtoMapper.java b/scm-core/src/main/java/sonia/scm/api/v2/resources/CollectionToDtoMapper.java
new file mode 100644
index 0000000000..4f8c6a6f3f
--- /dev/null
+++ b/scm-core/src/main/java/sonia/scm/api/v2/resources/CollectionToDtoMapper.java
@@ -0,0 +1,32 @@
+package sonia.scm.api.v2.resources;
+
+import de.otto.edison.hal.HalRepresentation;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static de.otto.edison.hal.Embedded.embeddedBuilder;
+import static de.otto.edison.hal.Links.linkingTo;
+
+abstract class CollectionToDtoMapper<E, D extends HalRepresentation> {
+
+  private final String collectionName;
+  private final BaseMapper<E, D> mapper;
+
+  protected CollectionToDtoMapper(String collectionName, BaseMapper<E, D> mapper) {
+    this.collectionName = collectionName;
+    this.mapper = mapper;
+  }
+
+  public HalRepresentation map(Collection<E> collection) {
+    List<D> dtos = collection.stream().map(mapper::map).collect(Collectors.toList());
+    return new HalRepresentation(
+      linkingTo().self(createSelfLink()).build(),
+      embeddedBuilder().with(collectionName, dtos).build()
+    );
+  }
+
+  protected abstract String createSelfLink();
+
+}
diff --git a/scm-plugins/pom.xml b/scm-plugins/pom.xml
index 70dee9676a..e82eaddb9a 100644
--- a/scm-plugins/pom.xml
+++ b/scm-plugins/pom.xml
@@ -63,23 +63,6 @@
       <artifactId>enunciate-core-annotations</artifactId>
     </dependency>
 
-    <dependency>
-      <groupId>org.mapstruct</groupId>
-      <artifactId>mapstruct-jdk8</artifactId>
-    </dependency>
-
-    <dependency>
-      <groupId>org.mapstruct</groupId>
-      <artifactId>mapstruct-processor</artifactId>
-      <scope>provided</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>de.otto.edison</groupId>
-      <artifactId>edison-hal</artifactId>
-      <scope>compile</scope>
-    </dependency>
-
     <dependency>
       <groupId>org.projectlombok</groupId>
       <artifactId>lombok</artifactId>
diff --git a/scm-webapp/pom.xml b/scm-webapp/pom.xml
index 538eba4911..30944d49cc 100644
--- a/scm-webapp/pom.xml
+++ b/scm-webapp/pom.xml
@@ -150,11 +150,6 @@
       <artifactId>resteasy-servlet-initializer</artifactId>
     </dependency>
 
-    <dependency>
-      <groupId>de.otto.edison</groupId>
-      <artifactId>edison-hal</artifactId>
-    </dependency>
-
     <!-- injection -->
 
     <dependency>
@@ -383,17 +378,6 @@
       <scope>provided</scope>
     </dependency>
 
-    <dependency>
-      <groupId>org.mapstruct</groupId>
-      <artifactId>mapstruct-jdk8</artifactId>
-    </dependency>
-
-    <dependency>
-      <groupId>org.mapstruct</groupId>
-      <artifactId>mapstruct-processor</artifactId>
-      <scope>provided</scope>
-    </dependency>
-
   </dependencies>
 
   <build>