diff --git a/caosdb-proto b/caosdb-proto
index c3783d64c31f8ee3495c28746dfb0bf23abfc20a..af178772ef43ded290168f33852ef3d85583b20a 160000
--- a/caosdb-proto
+++ b/caosdb-proto
@@ -1 +1 @@
-Subproject commit c3783d64c31f8ee3495c28746dfb0bf23abfc20a
+Subproject commit af178772ef43ded290168f33852ef3d85583b20a
diff --git a/src/main/java/org/caosdb/server/grpc/DownloadBuffer.java b/src/main/java/org/caosdb/server/grpc/DownloadBuffer.java
index dc1da0d63f338799f80c7f45c650c98f2893586a..c1598f30d98e224a24705c2196fbcaf81be39fca 100644
--- a/src/main/java/org/caosdb/server/grpc/DownloadBuffer.java
+++ b/src/main/java/org/caosdb/server/grpc/DownloadBuffer.java
@@ -1,5 +1,6 @@
 package org.caosdb.server.grpc;
 
+import com.google.protobuf.ByteString;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -10,7 +11,6 @@ import org.caosdb.api.entity.v1alpha1.FileChunk;
 import org.caosdb.api.entity.v1alpha1.FileDownloadResponse;
 import org.caosdb.api.entity.v1alpha1.TransmissionStatus;
 import org.caosdb.server.entity.FileProperties;
-import com.google.protobuf.ByteString;
 
 public class DownloadBuffer {
 
@@ -36,8 +36,7 @@ public class DownloadBuffer {
     final long unread_bytes = fileChannel.size() - position;
     final long next_chunk_size = Math.min(unread_bytes, getChunkSize());
 
-    final MappedByteBuffer map =
-        fileChannel.map(MapMode.READ_ONLY, position, next_chunk_size);
+    final MappedByteBuffer map = fileChannel.map(MapMode.READ_ONLY, position, next_chunk_size);
 
     final FileChunk.Builder builder = FileChunk.newBuilder();
     builder.setData(ByteString.copyFrom(map));
diff --git a/src/main/java/org/caosdb/server/grpc/EntityTransactionServiceImpl.java b/src/main/java/org/caosdb/server/grpc/EntityTransactionServiceImpl.java
index 6eed746a9ef5d520a65aa9458c3c12d89c0d2f8c..f704e4359071d3836206fe476ceeef49975855f3 100644
--- a/src/main/java/org/caosdb/server/grpc/EntityTransactionServiceImpl.java
+++ b/src/main/java/org/caosdb/server/grpc/EntityTransactionServiceImpl.java
@@ -1,5 +1,6 @@
 package org.caosdb.server.grpc;
 
+import io.grpc.stub.StreamObserver;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Iterator;
@@ -50,7 +51,6 @@ import org.caosdb.server.transaction.Retrieve;
 import org.caosdb.server.transaction.WriteTransaction;
 import org.caosdb.server.utils.EntityStatus;
 import org.caosdb.server.utils.ServerMessages;
-import io.grpc.stub.StreamObserver;
 
 public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBase {
 
@@ -194,35 +194,35 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
       final PropertyContainer from) {
     final Iterator<org.caosdb.server.entity.wrapper.Property> iterator = from.iterator();
     return () ->
-    new Iterator<>() {
+        new Iterator<>() {
 
-      @Override
-      public boolean hasNext() {
-        return iterator.hasNext();
-      }
+          @Override
+          public boolean hasNext() {
+            return iterator.hasNext();
+          }
 
-      @Override
-      public org.caosdb.api.entity.v1alpha1.Property next() {
-        return convert(iterator.next());
-      }
-    };
+          @Override
+          public org.caosdb.api.entity.v1alpha1.Property next() {
+            return convert(iterator.next());
+          }
+        };
   }
 
   public Iterable<? extends Parent> convert(final ParentContainer from) {
     final Iterator<org.caosdb.server.entity.wrapper.Parent> iterator = from.iterator();
     return () ->
-    new Iterator<>() {
+        new Iterator<>() {
 
-      @Override
-      public boolean hasNext() {
-        return iterator.hasNext();
-      }
+          @Override
+          public boolean hasNext() {
+            return iterator.hasNext();
+          }
 
-      @Override
-      public Parent next() {
-        return convert(iterator.next());
-      }
-    };
+          @Override
+          public Parent next() {
+            return convert(iterator.next());
+          }
+        };
   }
 
   public Integer getId(final String id) {
@@ -266,8 +266,8 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
     if (container.getFlags().containsKey("query_count_result")) {
       final int count = Integer.parseInt(container.getFlags().get("query_count_result"));
       builder
-      .addResponsesBuilder()
-      .setRetrieveResponse(RetrieveResponse.newBuilder().setCountResult(count));
+          .addResponsesBuilder()
+          .setRetrieveResponse(RetrieveResponse.newBuilder().setCountResult(count));
     } else {
       final boolean download_files_container = container.getFlags().containsKey("download_files");
       for (final EntityInterface entity : container) {
@@ -283,8 +283,8 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
                   file_download.getId(), entity.getFileProperties()));
         }
         builder
-        .addResponsesBuilder()
-        .setRetrieveResponse(RetrieveResponse.newBuilder().setEntityResponse(entityResponse));
+            .addResponsesBuilder()
+            .setRetrieveResponse(RetrieveResponse.newBuilder().setEntityResponse(entityResponse));
       }
     }
 
@@ -300,8 +300,8 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
           // exist.
           builder.addResponses(
               TransactionResponse.newBuilder()
-              .setRetrieveResponse(
-                  RetrieveResponse.newBuilder().setEntityResponse(entityDoesNotExist(id))));
+                  .setRetrieveResponse(
+                      RetrieveResponse.newBuilder().setEntityResponse(entityDoesNotExist(id))));
         }
       }
     }
@@ -386,8 +386,8 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
       appendMessages(entity, idResponse);
 
       builder
-      .addResponsesBuilder()
-      .setDeleteResponse(DeleteResponse.newBuilder().setIdResponse(idResponse));
+          .addResponsesBuilder()
+          .setDeleteResponse(DeleteResponse.newBuilder().setIdResponse(idResponse));
     }
 
     // Add those entities which have not been retrieved because the have a string id
@@ -403,7 +403,7 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
           idResponse.addErrors(convert(ServerMessages.ENTITY_DOES_NOT_EXIST));
           builder.addResponses(
               TransactionResponse.newBuilder()
-              .setDeleteResponse(DeleteResponse.newBuilder().setIdResponse(idResponse)));
+                  .setDeleteResponse(DeleteResponse.newBuilder().setIdResponse(idResponse)));
         }
       }
     }
@@ -416,7 +416,7 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
     final InsertEntity entity =
         new InsertEntity(
             insertEntity.getName().isEmpty() ? null : insertEntity.getName(),
-                Role.parse(insertEntity.getRole()));
+            Role.parse(insertEntity.getRole()));
 
     return InsertResponse.newBuilder()
         .setIdResponse(write(convert(insertEntity, entity), entityRequest))
@@ -440,8 +440,8 @@ public class EntityTransactionServiceImpl extends EntityTransactionServiceImplBa
       return UpdateResponse.newBuilder()
           .setIdResponse(
               IdResponse.newBuilder()
-              .setId(id)
-              .addErrors(convert(ServerMessages.ENTITY_DOES_NOT_EXIST)))
+                  .setId(id)
+                  .addErrors(convert(ServerMessages.ENTITY_DOES_NOT_EXIST)))
           .build();
     }
   }