diff --git a/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrHeader.java b/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrHeader.java
index a1734bf658..24854661f6 100644
--- a/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrHeader.java
+++ b/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrHeader.java
@@ -227,7 +227,8 @@ private void makeVariable(RandomAccessDirectoryItem item, long dataOffset, ZArra
 
   private List<Attribute> makeAttributes(RandomAccessDirectoryItem item) {
     // get RandomAccessFile for JSON parsing
-    try (RandomAccessFile raf = item.getOrOpenRaf()) {
+    try {
+      RandomAccessFile raf = item.getOrOpenRaf();
       // read attributes from file
       raf.seek(0);
       Map<String, Object> attrMap = objectMapper.readValue(raf, HashMap.class);
diff --git a/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrIosp.java b/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrIosp.java
index 15bf286267..971d102473 100644
--- a/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrIosp.java
+++ b/cdm/zarr/src/main/java/ucar/nc2/iosp/zarr/ZarrIosp.java
@@ -139,4 +139,9 @@ private Object getFillValue(ZarrHeader.VInfo vinfo, DataType dataType) {
     }
     return fillValue;
   }
+
+  @Override
+  public long getLastModified() {
+    return raf.getLastModified();
+  }
 }
diff --git a/cdm/zarr/src/test/java/ucar/nc2/iosp/zarr/TestZarrIosp.java b/cdm/zarr/src/test/java/ucar/nc2/iosp/zarr/TestZarrIosp.java
index 7eb8f7e653..e2f93781fd 100644
--- a/cdm/zarr/src/test/java/ucar/nc2/iosp/zarr/TestZarrIosp.java
+++ b/cdm/zarr/src/test/java/ucar/nc2/iosp/zarr/TestZarrIosp.java
@@ -296,4 +296,12 @@ public void testFillValues() throws IOException {
     assertThat(double_ninf.getDouble(0)).isEqualTo(Double.NEGATIVE_INFINITY);
   }
 
+  @Test
+  public void testLastModified() throws IOException {
+    for (String uri : stores) {
+      try (NetcdfFile ncfile = NetcdfFiles.open(uri)) {
+        assertThat(ncfile.getLastModified()).isNotEqualTo(0);
+      }
+    }
+  }
 }