How to use

synchronize

method

in

it.unimi.dsi.fastutil.ints.Int2ObjectMaps

@Override
protected Int2ObjectMap<OutEdges<IntWritable, E>> getPartitionEdges(
  int partitionId) {
 Int2ObjectMap<OutEdges<IntWritable, E>> partitionEdges =
   (Int2ObjectMap<OutEdges<IntWritable, E>>)
     transientEdges.get(partitionId);
 if (partitionEdges == null) {
  Int2ObjectMap<OutEdges<IntWritable, E>> newPartitionEdges =
    Int2ObjectMaps.synchronize(
      new Int2ObjectOpenHashMap<OutEdges<IntWritable, E>>());
  partitionEdges = (Int2ObjectMap<OutEdges<IntWritable, E>>)
    transientEdges.putIfAbsent(partitionId,
      newPartitionEdges);
  if (partitionEdges == null) {
   partitionEdges = newPartitionEdges;
  }
 }
 return partitionEdges;
}

public FidelDecoderWrapper(IntegerLanguageModel languageModel, DecoderWeights weights) {
  this.languageModel = languageModel;
  this.srcWordMap = Object2IntMaps.synchronize(new Object2IntOpenHashMap<String>());
  this.srcInvMap = Int2ObjectMaps.synchronize(new Int2ObjectOpenHashMap<String>());
  this.trgWordMap = languageModel.wordMap();
  this.invWordMap = languageModel.invWordMap();
  this.weights = weights;
}