Program: 24519
Project: 24519
Buggy source:
@SuppressWarnings("String_Node_Str") public GiraphScenarioWrapper<I,V,E,M1,M2> load(String fileName) throws ClassNotFoundException, IOException {
  GiraphScenario giraphScenario=GiraphScenario.parseFrom(new FileInputStream(fileName));
  Class<?> clazz=Class.forName(giraphScenario.getClassUnderTest());
  Class<? extends Computation<I,V,E,M1,M2>> classUnderTest=(Class<? extends Computation<I,V,E,M1,M2>>)castClassToUpperBound(clazz,Computation.class);
  Class<I> vertexIdClass=(Class<I>)castClassToUpperBound(Class.forName(giraphScenario.getVertexIdClass()),WritableComparable.class);
  Class<V> vertexValueClass=(Class<V>)castClassToUpperBound(Class.forName(giraphScenario.getVertexValueClass()),Writable.class);
  Class<E> edgeValueClass=(Class<E>)castClassToUpperBound(Class.forName(giraphScenario.getEdgeValueClass()),Writable.class);
  Class<M1> incomingMessageClass=(Class<M1>)castClassToUpperBound(Class.forName(giraphScenario.getIncomingMessageClass()),Writable.class);
  Class<M2> outgoingMessageClass=(Class<M2>)castClassToUpperBound(Class.forName(giraphScenario.getOutgoingMessageClass()),Writable.class);
  GiraphScenarioWrapper<I,V,E,M1,M2> giraphScenarioWrapper=new GiraphScenarioWrapper(classUnderTest,vertexIdClass,vertexValueClass,edgeValueClass,incomingMessageClass,outgoingMessageClass);
  ContextOrBuilder context=giraphScenario.getContextOrBuilder();
  GiraphScenarioWrapper<I,V,E,M1,M2>.ContextWrapper contextWrapper=giraphScenarioWrapper.new ContextWrapper();
  I vertexId=newInstance(vertexIdClass);
  fromByteString(context.getVertexId(),vertexId);
  contextWrapper.setVertexIdWrapper(vertexId);
  V vertexValue=newInstance(vertexValueClass);
  fromByteString(context.getVertexValueBefore(),vertexValue);
  contextWrapper.setVertexValueBeforeWrapper(vertexValue);
  fromByteString(context.getVertexValueAfter(),vertexValue);
  contextWrapper.setVertexValueAfterWrapper(vertexValue);
  for (  Neighbor neighbor : context.getNeighborList()) {
    I neighborId=newInstance(vertexIdClass);
    fromByteString(neighbor.getNeighborId(),neighborId);
    E edgeValue;
    if (neighbor.hasEdgeValue()) {
      edgeValue=newInstance(edgeValueClass);
      fromByteString(neighbor.getEdgeValue(),edgeValue);
    }
 else {
      edgeValue=null;
    }
    contextWrapper.addNeighborWrapper(neighborId,edgeValue);
  }
  for (int i=0; i < context.getInMessageCount(); i++) {
    M1 msg=newInstance(incomingMessageClass);
    fromByteString(context.getInMessage(i),msg);
    contextWrapper.addIncomingMessageWrapper(msg);
  }
  for (  OutMsg outmsg : context.getOutMessageList()) {
    I destinationId=newInstance(vertexIdClass);
    fromByteString(outmsg.getDestinationId(),destinationId);
    M2 msg=newInstance(outgoingMessageClass);
    fromByteString(outmsg.getMsgData(),msg);
    contextWrapper.addOutgoingMessageWrapper(destinationId,msg);
  }
  giraphScenarioWrapper.setContextWrapper(contextWrapper);
  return giraphScenarioWrapper;
}

Fixed version (ground truth):
public GiraphScenarioWrapper<I,V,E,M1,M2> load(String fileName) throws ClassNotFoundException, IOException {
  GiraphScenario giraphScenario=GiraphScenario.parseFrom(new FileInputStream(fileName));
  return loadGiraphScneario(giraphScenario);
}