Program: 33452
Project: 33452
Buggy source:
/** 
 * Given a   {@code Value} and a {@code Barrier}, we add one or more slots to the waitingFor list of the barrier corresponding to the   {@code Value}. If the value is an   {@code ImmediateValue} we make a new slot, register it asfilled and add it. If the value is a  {@code FutureValue} we add the slotwrapped by the  {@code FutreValueImpl}. If the value is a   {@code FutureList}then we add multiple slots, one for each   {@code Value} in the List wrappedby the  {@code FutureList}. This process is not recursive because we do not currently support   {@code FutureLists} of {@code FutureLists}.
 * @param updateSpec
 * @param value A {@code Value}.   {@code Null} is interpreted as an {@code ImmediateValue} with a value of {@code Null}.
 * @param rootJobKey
 * @param barrier
 */
public static void registerSlotsWithBarrier(UpdateSpec updateSpec,Value<?> value,Key rootJobKey,Barrier barrier){
  if (null == value || value instanceof ImmediateValue<?>) {
    Object concreteValue=null;
    if (null != value) {
      ImmediateValue<?> iv=(ImmediateValue<?>)value;
      concreteValue=iv.getValue();
    }
    Slot slot=new Slot(rootJobKey);
    registerSlotFilled(updateSpec,slot,concreteValue);
    barrier.addRegularArgumentSlot(slot);
  }
 else   if (value instanceof FutureValueImpl<?>) {
    FutureValueImpl<?> futureValue=(FutureValueImpl<?>)value;
    Slot slot=futureValue.getSlot();
    barrier.addRegularArgumentSlot(slot);
    updateSpec.includeSlot(slot);
  }
 else   if (value instanceof FutureList<?>) {
    FutureList<?> futureList=(FutureList<?>)value;
    List<Slot> slotList=new ArrayList<Slot>(futureList.getListOfValues().size());
    for (    Value<?> valFromList : futureList.getListOfValues()) {
      Slot slot=null;
      if (valFromList instanceof ImmediateValue<?>) {
        ImmediateValue<?> ivFromList=(ImmediateValue<?>)valFromList;
        slot=new Slot(rootJobKey);
        registerSlotFilled(updateSpec,slot,ivFromList.getValue());
      }
 else       if (valFromList instanceof FutureValueImpl<?>) {
        FutureValueImpl<?> futureValFromList=(FutureValueImpl<?>)valFromList;
        slot=futureValFromList.getSlot();
      }
 else       if (value instanceof FutureList<?>) {
        throw new IllegalArgumentException("String_Node_Str");
      }
 else {
        throwUnrecognizedValueException(valFromList);
      }
      slotList.add(slot);
      updateSpec.includeSlot(slot);
    }
    barrier.addListArgumentSlots(slotList);
  }
 else {
    throwUnrecognizedValueException(value);
  }
  updateSpec.includeBarrier(barrier);
}

Fixed version (ground truth):
/** 
 * Given a   {@code Value} and a {@code Barrier}, we add one or more slots to the waitingFor list of the barrier corresponding to the   {@code Value}. If the value is an   {@code ImmediateValue} we make a new slot, register it asfilled and add it. If the value is a  {@code FutureValue} we add the slotwrapped by the  {@code FutreValueImpl}. If the value is a   {@code FutureList}then we add multiple slots, one for each   {@code Value} in the List wrappedby the  {@code FutureList}. This process is not recursive because we do not currently support   {@code FutureLists} of {@code FutureLists}.
 * @param updateSpec
 * @param value A {@code Value}.   {@code Null} is interpreted as an{@code ImmediateValue} with a value of {@code Null}.
 * @param rootJobKey
 * @param barrier
 */
public static void registerSlotsWithBarrier(UpdateSpec updateSpec,Value<?> value,Key rootJobKey,Barrier barrier){
  if (null == value || value instanceof ImmediateValue<?>) {
    Object concreteValue=null;
    if (null != value) {
      ImmediateValue<?> iv=(ImmediateValue<?>)value;
      concreteValue=iv.getValue();
    }
    Slot slot=new Slot(rootJobKey);
    registerSlotFilled(updateSpec,slot,concreteValue);
    barrier.addRegularArgumentSlot(slot);
  }
 else   if (value instanceof FutureValueImpl<?>) {
    FutureValueImpl<?> futureValue=(FutureValueImpl<?>)value;
    Slot slot=futureValue.getSlot();
    barrier.addRegularArgumentSlot(slot);
    updateSpec.includeSlot(slot);
  }
 else   if (value instanceof FutureList<?>) {
    FutureList<?> futureList=(FutureList<?>)value;
    List<Slot> slotList=new ArrayList<Slot>(futureList.getListOfValues().size());
    Slot dummyListSlot=new Slot(rootJobKey);
    registerSlotFilled(updateSpec,dummyListSlot,null);
    for (    Value<?> valFromList : futureList.getListOfValues()) {
      Slot slot=null;
      if (valFromList instanceof ImmediateValue<?>) {
        ImmediateValue<?> ivFromList=(ImmediateValue<?>)valFromList;
        slot=new Slot(rootJobKey);
        registerSlotFilled(updateSpec,slot,ivFromList.getValue());
      }
 else       if (valFromList instanceof FutureValueImpl<?>) {
        FutureValueImpl<?> futureValFromList=(FutureValueImpl<?>)valFromList;
        slot=futureValFromList.getSlot();
      }
 else       if (value instanceof FutureList<?>) {
        throw new IllegalArgumentException("String_Node_Str");
      }
 else {
        throwUnrecognizedValueException(valFromList);
      }
      slotList.add(slot);
      updateSpec.includeSlot(slot);
    }
    barrier.addListArgumentSlots(dummyListSlot,slotList);
  }
 else {
    throwUnrecognizedValueException(value);
  }
  updateSpec.includeBarrier(barrier);
}