diff --git a/digiwf-connector/digiwf-camunda-connector-service/pom.xml b/digiwf-connector/digiwf-camunda-connector-service/pom.xml
index 3b798cfaca..52685c5653 100644
--- a/digiwf-connector/digiwf-camunda-connector-service/pom.xml
+++ b/digiwf-connector/digiwf-camunda-connector-service/pom.xml
@@ -13,7 +13,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-connector</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-connector/digiwf-camunda-connector-starter/pom.xml b/digiwf-connector/digiwf-camunda-connector-starter/pom.xml
index 8fc05c9b0c..01243fa507 100644
--- a/digiwf-connector/digiwf-camunda-connector-starter/pom.xml
+++ b/digiwf-connector/digiwf-camunda-connector-starter/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-connector</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-connector/digiwf-camunda-connector/pom.xml b/digiwf-connector/digiwf-camunda-connector/pom.xml
index 6f4dd369d0..0e97a46949 100644
--- a/digiwf-connector/digiwf-camunda-connector/pom.xml
+++ b/digiwf-connector/digiwf-camunda-connector/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-connector</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-connector/digiwf-connector-api/pom.xml b/digiwf-connector/digiwf-connector-api/pom.xml
index 7e9d15fdf9..d056edabf6 100644
--- a/digiwf-connector/digiwf-connector-api/pom.xml
+++ b/digiwf-connector/digiwf-connector-api/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>digiwf-connector</artifactId>
         <groupId>io.muenchendigital.digiwf</groupId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/digiwf-connector/digiwf-connector-core/pom.xml b/digiwf-connector/digiwf-connector-core/pom.xml
index df94df525d..4cf64a8254 100644
--- a/digiwf-connector/digiwf-connector-core/pom.xml
+++ b/digiwf-connector/digiwf-connector-core/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-connector</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
 
diff --git a/digiwf-connector/digiwf-connector-starter-rest/pom.xml b/digiwf-connector/digiwf-connector-starter-rest/pom.xml
index 5f4c363deb..57632feba7 100644
--- a/digiwf-connector/digiwf-connector-starter-rest/pom.xml
+++ b/digiwf-connector/digiwf-connector-starter-rest/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-connector</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-connector/digiwf-connector-starter/pom.xml b/digiwf-connector/digiwf-connector-starter/pom.xml
index a88b176a9d..12cb3919c8 100644
--- a/digiwf-connector/digiwf-connector-starter/pom.xml
+++ b/digiwf-connector/digiwf-connector-starter/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-connector</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-connector/pom.xml b/digiwf-connector/pom.xml
index e6fa080fb8..45b2bcd80b 100644
--- a/digiwf-connector/pom.xml
+++ b/digiwf-connector/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-core</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-engine/digiwf-engine-service/pom.xml b/digiwf-engine/digiwf-engine-service/pom.xml
index da16335ebe..23f814cb79 100644
--- a/digiwf-engine/digiwf-engine-service/pom.xml
+++ b/digiwf-engine/digiwf-engine-service/pom.xml
@@ -13,7 +13,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-engine</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-engine/digiwf-engine-task-starter/pom.xml b/digiwf-engine/digiwf-engine-task-starter/pom.xml
index 6efa79ee40..c5e687ec23 100644
--- a/digiwf-engine/digiwf-engine-task-starter/pom.xml
+++ b/digiwf-engine/digiwf-engine-task-starter/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-engine</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-engine/digiwf-engine-task/pom.xml b/digiwf-engine/digiwf-engine-task/pom.xml
index c4dae9497b..27625a01a2 100644
--- a/digiwf-engine/digiwf-engine-task/pom.xml
+++ b/digiwf-engine/digiwf-engine-task/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-engine</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
 
diff --git a/digiwf-engine/pom.xml b/digiwf-engine/pom.xml
index 002fbab655..53e1a5f450 100644
--- a/digiwf-engine/pom.xml
+++ b/digiwf-engine/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-core</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/pom.xml b/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/pom.xml
index ab84ad74f8..7018eb9b74 100644
--- a/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/pom.xml
+++ b/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-json-serialization</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/src/main/java/io/muenchendigital/digiwf/json/serialization/serializer/JsonSerializerImpl.java b/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/src/main/java/io/muenchendigital/digiwf/json/serialization/serializer/JsonSerializerImpl.java
index d63de42696..85bc90f4ef 100644
--- a/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/src/main/java/io/muenchendigital/digiwf/json/serialization/serializer/JsonSerializerImpl.java
+++ b/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-core/src/main/java/io/muenchendigital/digiwf/json/serialization/serializer/JsonSerializerImpl.java
@@ -78,6 +78,13 @@ public Map<String, Object> merge(final JSONObject source, final JSONObject targe
         return this.deepMerge(source, target).toMap();
     }
 
+    /**
+     * Returns all root keys that are in the json schema.
+     *
+     * @param schema
+     * @param filterReadOnly
+     * @return
+     */
     @Override
     public Set<String> extractRootKeys(final Schema schema, final Boolean filterReadOnly) {
         if (schema instanceof ObjectSchema) {
@@ -99,7 +106,7 @@ public Set<String> extractRootKeys(final Schema schema, final Boolean filterRead
         if (schema instanceof CombinedSchema) {
             final CombinedSchema combinedSchema = (CombinedSchema) schema;
             return combinedSchema.getSubschemas().stream()
-                    .map(this::extractRootKeys)
+                    .map(obj -> this.extractRootKeys(obj, filterReadOnly))
                     .flatMap(Set::stream)
                     .collect(Collectors.toSet());
         }
diff --git a/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-starter/pom.xml b/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-starter/pom.xml
index bc2ba62288..a27c878236 100644
--- a/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-starter/pom.xml
+++ b/digiwf-libs/digiwf-json-serialization/digiwf-json-serialization-starter/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-json-serialization</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-libs/digiwf-json-serialization/example-json-serialization/pom.xml b/digiwf-libs/digiwf-json-serialization/example-json-serialization/pom.xml
index 524f900e1c..246d2d897d 100644
--- a/digiwf-libs/digiwf-json-serialization/example-json-serialization/pom.xml
+++ b/digiwf-libs/digiwf-json-serialization/example-json-serialization/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-json-serialization</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-libs/digiwf-json-serialization/pom.xml b/digiwf-libs/digiwf-json-serialization/pom.xml
index 421363aaf3..e664903d64 100644
--- a/digiwf-libs/digiwf-json-serialization/pom.xml
+++ b/digiwf-libs/digiwf-json-serialization/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-libs</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-core/pom.xml b/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-core/pom.xml
index 07d29b26d0..3907744b10 100644
--- a/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-core/pom.xml
+++ b/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-core/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <artifactId>digiwf-spring-cloudstream-utils</artifactId>
         <groupId>io.muenchendigital.digiwf</groupId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
 
diff --git a/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-starter/pom.xml b/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-starter/pom.xml
index c713cd9058..2742be7c69 100644
--- a/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-starter/pom.xml
+++ b/digiwf-libs/digiwf-spring-cloudstream-utils/digiwf-spring-cloudstream-utils-starter/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <artifactId>digiwf-spring-cloudstream-utils</artifactId>
         <groupId>io.muenchendigital.digiwf</groupId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-libs/digiwf-spring-cloudstream-utils/example-spring-cloudstream-utils/pom.xml b/digiwf-libs/digiwf-spring-cloudstream-utils/example-spring-cloudstream-utils/pom.xml
index 0937400043..46a3291f70 100644
--- a/digiwf-libs/digiwf-spring-cloudstream-utils/example-spring-cloudstream-utils/pom.xml
+++ b/digiwf-libs/digiwf-spring-cloudstream-utils/example-spring-cloudstream-utils/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <artifactId>digiwf-spring-cloudstream-utils</artifactId>
         <groupId>io.muenchendigital.digiwf</groupId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-libs/digiwf-spring-cloudstream-utils/pom.xml b/digiwf-libs/digiwf-spring-cloudstream-utils/pom.xml
index a0c348af04..1ea92a16fc 100644
--- a/digiwf-libs/digiwf-spring-cloudstream-utils/pom.xml
+++ b/digiwf-libs/digiwf-spring-cloudstream-utils/pom.xml
@@ -5,14 +5,14 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>digiwf-spring-cloudstream-utils</artifactId>
     <packaging>pom</packaging>
-    <version>0.10.1-SNAPSHOT</version>
+    <version>0.10.2-SNAPSHOT</version>
     <name>digiwf-spring-cloudstream-utils</name>
     <description>Cloudstream Utils used by DigiWF</description>
 
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-libs</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-libs/pom.xml b/digiwf-libs/pom.xml
index 41bd159838..9251282439 100644
--- a/digiwf-libs/pom.xml
+++ b/digiwf-libs/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-core</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-process/digiwf-process-api/pom.xml b/digiwf-process/digiwf-process-api/pom.xml
index 2ef1ec7d07..67685c0d0c 100644
--- a/digiwf-process/digiwf-process-api/pom.xml
+++ b/digiwf-process/digiwf-process-api/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <artifactId>digiwf-process</artifactId>
         <groupId>io.muenchendigital.digiwf</groupId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-process/pom.xml b/digiwf-process/pom.xml
index 72b7682a6d..21fa99dbfa 100644
--- a/digiwf-process/pom.xml
+++ b/digiwf-process/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <artifactId>digiwf-core</artifactId>
         <groupId>io.muenchendigital.digiwf</groupId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-schema-registry/digiwf-schema-registry-client-example/pom.xml b/digiwf-schema-registry/digiwf-schema-registry-client-example/pom.xml
index 2961de8912..e03f66d219 100644
--- a/digiwf-schema-registry/digiwf-schema-registry-client-example/pom.xml
+++ b/digiwf-schema-registry/digiwf-schema-registry-client-example/pom.xml
@@ -13,7 +13,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-schema-registry</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-schema-registry/digiwf-schema-registry-client-starter/pom.xml b/digiwf-schema-registry/digiwf-schema-registry-client-starter/pom.xml
index c2a8b137c1..704074cade 100644
--- a/digiwf-schema-registry/digiwf-schema-registry-client-starter/pom.xml
+++ b/digiwf-schema-registry/digiwf-schema-registry-client-starter/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-schema-registry</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-schema-registry/digiwf-schema-registry-client/pom.xml b/digiwf-schema-registry/digiwf-schema-registry-client/pom.xml
index 8d77db622e..3ba920a1dd 100644
--- a/digiwf-schema-registry/digiwf-schema-registry-client/pom.xml
+++ b/digiwf-schema-registry/digiwf-schema-registry-client/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-schema-registry</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <properties>
diff --git a/digiwf-schema-registry/digiwf-schema-registry-service/pom.xml b/digiwf-schema-registry/digiwf-schema-registry-service/pom.xml
index 089abb2836..915c63ba7e 100644
--- a/digiwf-schema-registry/digiwf-schema-registry-service/pom.xml
+++ b/digiwf-schema-registry/digiwf-schema-registry-service/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-schema-registry</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-schema-registry/pom.xml b/digiwf-schema-registry/pom.xml
index e32a64f14d..8e33e6e3ac 100644
--- a/digiwf-schema-registry/pom.xml
+++ b/digiwf-schema-registry/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-core</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-core/pom.xml b/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-core/pom.xml
index 40cb004cc8..730d6ff75b 100644
--- a/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-core/pom.xml
+++ b/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-core/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-taskana-connector</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-starter/pom.xml b/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-starter/pom.xml
index 86b751e5b9..e523a44923 100644
--- a/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-starter/pom.xml
+++ b/digiwf-task/digiwf-taskana-connector/digiwf-taskana-connector-starter/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <artifactId>digiwf-taskana-connector</artifactId>
         <groupId>io.muenchendigital.digiwf</groupId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/digiwf-task/digiwf-taskana-connector/pom.xml b/digiwf-task/digiwf-taskana-connector/pom.xml
index 3cbe162474..b0267949e0 100644
--- a/digiwf-task/digiwf-taskana-connector/pom.xml
+++ b/digiwf-task/digiwf-taskana-connector/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-task</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/digiwf-task/pom.xml b/digiwf-task/pom.xml
index 47f5bcdd03..2b7a3f6fad 100644
--- a/digiwf-task/pom.xml
+++ b/digiwf-task/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>io.muenchendigital.digiwf</groupId>
         <artifactId>digiwf-core</artifactId>
-        <version>0.10.1-SNAPSHOT</version>
+        <version>0.10.2-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/pom.xml b/pom.xml
index 566cc93af5..ea83ee7b28 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>io.muenchendigital.digiwf</groupId>
     <artifactId>digiwf-core</artifactId>
-    <version>0.10.1-SNAPSHOT</version>
+    <version>0.10.2-SNAPSHOT</version>
     <name>digiwf-core</name>
     <packaging>pom</packaging>
     <description>DigiWF Core Services</description>