LegendShortcuts

original.java

public void setValueReference(ValueReference<K, V> valueReference) {
  ValueReference<K, V> previous = this.valueReference;
  this.valueReference = valueReference;
  if (previous != null) {
    previous.clear();
  }
}

modified.java

public void setValueReference(ValueReference<K, V> valueReference) {
  ValueReference<K, V> previous = this.valueReference;
  this.valueReference = valueReference;
  previous.clear();
}