stankiewicz commented on code in PR #38490:
URL: https://github.com/apache/beam/pull/38490#discussion_r3274466164


##########
sdks/java/core/src/test/java/org/apache/beam/sdk/util/WindowedValueTest.java:
##########
@@ -128,6 +128,35 @@ public void testWindowedValueWithElementMetadataCoder() 
throws CoderException {
     Assert.assertEquals(CausedByDrain.CAUSED_BY_DRAIN, value.causedByDrain());
     Assert.assertNotNull(value.getOpenTelemetryContext());
     Assert.assertEquals(ValueKind.DELETE, value.getValueKind());
+    WindowedValues.WindowedValueCoder.setMetadataNotSupported();
+  }
+
+  @Test
+  public void testWindowedValueWithValueKindCoder() throws CoderException {
+    WindowedValues.WindowedValueCoder.setMetadataSupported();
+    Instant timestamp = new Instant(1234);
+    WindowedValue<String> value =
+        WindowedValues.<String>builder()
+            .setValue("abc")
+            .setTimestamp(timestamp)
+            .setWindows(
+                Arrays.asList(new IntervalWindow(timestamp, 
timestamp.plus(Duration.millis(1000)))))
+            .setPaneInfo(PaneInfo.NO_FIRING)
+            .setValueKind(ValueKind.UPDATE_BEFORE)
+            .build();
+
+    Coder<WindowedValue<String>> windowedValueCoder =
+        WindowedValues.getFullCoder(StringUtf8Coder.of(), 
IntervalWindow.getCoder());
+
+    byte[] encodedValue = CoderUtils.encodeToByteArray(windowedValueCoder, 
value);
+    WindowedValue<String> decodedValue =
+        CoderUtils.decodeFromByteArray(windowedValueCoder, encodedValue);
+
+    Assert.assertEquals(value.getValue(), decodedValue.getValue());
+    Assert.assertEquals(value.getTimestamp(), decodedValue.getTimestamp());
+    Assert.assertArrayEquals(value.getWindows().toArray(), 
decodedValue.getWindows().toArray());
+    Assert.assertEquals(value.getValueKind(), decodedValue.getValueKind());
+    WindowedValues.WindowedValueCoder.setMetadataNotSupported();

Review Comment:
   can you add @ After and add 
WindowedValues.WindowedValueCoder.setMetadataNotSupported(); there? 



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