diff --git a/vault/src/main/java/org/opencadc/vault/NodePersistenceImpl.java b/vault/src/main/java/org/opencadc/vault/NodePersistenceImpl.java
index ace723d0..54dd0348 100644
--- a/vault/src/main/java/org/opencadc/vault/NodePersistenceImpl.java
+++ b/vault/src/main/java/org/opencadc/vault/NodePersistenceImpl.java
@@ -498,7 +498,7 @@ public ResourceIterator<Node> iterator(ContainerNode parent, Integer limit, Stri
     private class ChildNodeWrapper implements ResourceIterator<Node> {
 
         private final ContainerNode parent;
-        private final ResourceIterator<Node> childIter;
+        private ResourceIterator<Node> childIter;
         private boolean closedForException = false;
         
         private final IdentityManager identityManager = AuthenticationUtil.getIdentityManager();
diff --git a/vault/src/main/java/org/opencadc/vault/files/GetAction.java b/vault/src/main/java/org/opencadc/vault/files/GetAction.java
index 7d740d7d..f4dd2895 100644
--- a/vault/src/main/java/org/opencadc/vault/files/GetAction.java
+++ b/vault/src/main/java/org/opencadc/vault/files/GetAction.java
@@ -111,7 +111,7 @@ public void doAction() throws Exception {
         boolean noArtifact = node.bytesUsed == null || node.bytesUsed == 0L;
         noArtifact = noArtifact && nodePersistence.preventNotFound && rn.artifact == null;
         if (noArtifact) {
-            // no file
+            // no artifact found by preventNotFound
             syncOutput.setCode(HttpURLConnection.HTTP_NO_CONTENT);
             return;
         }
@@ -126,6 +126,14 @@ public void doAction() throws Exception {
             rn.protos = tg.getEndpoints(targetURI, pullTransfer, null);
             rn.artifact = tg.resolvedArtifact; // currently unused at this point
         }
+        // check artifact again (!preventNotFound)
+        noArtifact = node.bytesUsed == null || node.bytesUsed == 0L;
+        noArtifact = noArtifact && rn.artifact == null;
+        if (noArtifact) {
+            // no file
+            syncOutput.setCode(HttpURLConnection.HTTP_NO_CONTENT);
+            return;
+        }
         
         if (rn.protos.isEmpty()) {
             throw new TransientException("No location found for file " + Utils.getPath(node));
diff --git a/vault/src/main/java/org/opencadc/vault/metadata/BackgroundLogInfo.java b/vault/src/main/java/org/opencadc/vault/metadata/BackgroundLogInfo.java
index 88ac11a9..92e0752e 100644
--- a/vault/src/main/java/org/opencadc/vault/metadata/BackgroundLogInfo.java
+++ b/vault/src/main/java/org/opencadc/vault/metadata/BackgroundLogInfo.java
@@ -98,9 +98,11 @@ public void setOperation(String op) {
     }
     
     public void setLastModified(Date ts) {
-        DateFormat df = DateUtil.getDateFormat(DateUtil.IVOA_DATE_FORMAT, DateUtil.UTC);
-        this.lastmodified = df.format(ts);
+        if (ts != null) {
+            DateFormat df = DateUtil.getDateFormat(DateUtil.IVOA_DATE_FORMAT, DateUtil.UTC);
+            this.lastmodified = df.format(ts);
+        } else {
+            this.lastmodified = null;
+        }
     }
-    
-    
 }