default impls

Author: stankiewicz

runners/google-cloud-dataflow-java/src/main/java/org/apache/beam/runners/dataflow/BatchViewOverrides.java

@@ -1378,6 +1378,11 @@ public T getValue() {
       return value;
     }
 
+    @Override
+    public @Nullable Boolean isDraining() {
+      return null;
+    }
+
     @Override
     public Instant getTimestamp() {
       return BoundedWindow.TIMESTAMP_MIN_VALUE;

runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/util/ValueInEmptyWindows.java

@@ -59,6 +59,11 @@ public PaneInfo getPaneInfo() {
     return null;
   }
 
+  @Override
+  public @Nullable Boolean isDraining() {
+    return null;
+  }
+
   @Override
   public Iterable<WindowedValue<T>> explodeWindows() {
     return Collections.emptyList();

runners/spark/src/main/java/org/apache/beam/runners/spark/util/TimerUtils.java

@@ -115,6 +115,11 @@ public PaneInfo getPaneInfo() {
       return null;
     }
 
+    @Override
+    public @Nullable Boolean isDraining() {
+      return null;
+    }
+
     @Override
     public @Nullable Long getRecordOffset() {
       return null;