style changes

Author: Eugene Ma

sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/internal/exemplar/FixedSizeExemplarReservoir.java

@@ -9,18 +9,16 @@
 import io.opentelemetry.context.Context;
 import io.opentelemetry.sdk.common.Clock;
 import io.opentelemetry.sdk.metrics.data.ExemplarData;
-import javax.annotation.Nullable;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.function.BiFunction;
+import javax.annotation.Nullable;
 
 /** Base for fixed-size reservoir sampling of Exemplars. */
 abstract class FixedSizeExemplarReservoir<T extends ExemplarData> implements ExemplarReservoir<T> {
 
- @Nullable
- private ReservoirCell[] storage;
-
+ @Nullable private ReservoirCell[] storage;
  private final ReservoirCellSelector reservoirCellSelector;
  private final BiFunction<ReservoirCell, Attributes, T> mapAndResetCell;
  private final int size;
@@ -42,7 +40,7 @@ abstract class FixedSizeExemplarReservoir<T extends ExemplarData> implements Exe
 
  @Override
  public void offerLongMeasurement(long value, Attributes attributes, Context context) {
- if (this.storage == null) {
+ if (storage == null) {
  storage = initStorage();
  }
  int bucket = reservoirCellSelector.reservoirCellIndexFor(storage, value, attributes, context);
@@ -54,7 +52,7 @@ public void offerLongMeasurement(long value, Attributes attributes, Context cont
 
  @Override
  public void offerDoubleMeasurement(double value, Attributes attributes, Context context) {
- if (this.storage == null) {
+ if (storage == null) {
  storage = initStorage();
  }
  int bucket = reservoirCellSelector.reservoirCellIndexFor(storage, value, attributes, context);
@@ -77,7 +75,7 @@ public List<T> collectAndReset(Attributes pointAttributes) {
  if (!hasMeasurements) {
  return Collections.emptyList();
  }
- if (this.storage == null) {
+ if (storage == null) {
  storage = initStorage();
  }
  // Note: we are collecting exemplars from buckets piecemeal, but we