diff --git a/lucene/core/src/java/org/apache/lucene/codecs/lucene41/values/Lucene41SimpleDocValuesFormat.java b/lucene/core/src/java/org/apache/lucene/codecs/lucene41/values/Lucene41SimpleDocValuesFormat.java
index 6be62455cf1..7397ca8f7f5 100644
--- a/lucene/core/src/java/org/apache/lucene/codecs/lucene41/values/Lucene41SimpleDocValuesFormat.java
+++ b/lucene/core/src/java/org/apache/lucene/codecs/lucene41/values/Lucene41SimpleDocValuesFormat.java
@@ -49,18 +49,20 @@ public class Lucene41SimpleDocValuesFormat extends SimpleDocValuesFormat {
   @Override
   public SimpleDVProducer fieldsProducer(SegmentReadState state)
       throws IOException {
-    return new Lucene41DocValuesReader(state);
+    // nocommit fixme
+    // return new Lucene41PerdocProducer(state);
+    return null;
   }
 
   //nocommit this is equivalent to sep - we should pack in CFS
-  private static final class Lucene41DocValuesReader extends SimpleDVProducer {
+  private static final class Lucene41DocValuesReader extends PerDocProducerBase {
     private final TreeMap<String, DocValues> docValues;
 
     /**
      * Creates a new {@link Lucene41PerDocProducer} instance and loads all
      * {@link DocValues} instances for this segment and codec.
      */
-    public Lucene41PerDocProducer(SegmentReadState state) throws IOException {
+    public Lucene41DocValuesReader(SegmentReadState state) throws IOException {
       docValues = load(state.fieldInfos, state.segmentInfo.name, state.segmentInfo.getDocCount(), state.dir, state.context);
     }
     
diff --git a/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java b/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java
index cbcb82f0637..16f068bf8ee 100644
--- a/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java
+++ b/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java
@@ -736,6 +736,21 @@ public class MemoryIndex {
       return new FieldInfos(fieldInfos.values().toArray(new FieldInfo[fieldInfos.size()]));
     }
 
+    // nocommit todo
+    public NumericDocValues getNumericDocValues(String field, boolean direct) {
+      return null;
+    }
+
+    // nocommit todo
+    public BinaryDocValues getBinaryDocValues(String field, boolean direct) {
+      return null;
+    }
+
+    // nocommit todo
+    public SortedDocValues getSortedDocValues(String field, boolean direct) {
+      return null;
+    }
+
     private class MemoryFields extends Fields {
       @Override
       public Iterator<String> iterator() {