Program: 169529
Project: 169529
Buggy source:
/** 
 * Be sure to set up the fake player's hotbar with the right clicked items. starting with hotbar slot 0.
 * @param player
 * @param useItems this method will set the current selected slot of the fake player to 0, and move on to the next slot useItems - 1 times.So to use the first slot only, pass 1, to use the full hotbar, 9.
 * @return
 */
protected boolean rightClick(FakePlayer player,int useItems){
  if (useItems > 9)   throw new IllegalArgumentException("String_Node_Str" + useItems + "String_Node_Str");
  ForgeDirection faceDir=getFacingDirection();
  int dx=faceDir.offsetX;
  int dy=faceDir.offsetY;
  int dz=faceDir.offsetZ;
  int x=xCoord + dx;
  int y=yCoord + dy;
  int z=zCoord + dz;
  player.setPosition(x,y,z);
  player.rotationPitch=faceDir.offsetY * -90;
switch (faceDir) {
case NORTH:
    player.rotationYaw=180;
  break;
case SOUTH:
player.rotationYaw=0;
break;
case WEST:
player.rotationYaw=90;
break;
case EAST:
player.rotationYaw=-90;
}
try {
PlayerInteractEvent event=ForgeEventFactory.onPlayerInteract(player,Action.RIGHT_CLICK_AIR,x,y,z,faceDir.ordinal(),worldObj);
if (event.isCanceled()) return false;
Block block=worldObj.getBlock(x,y,z);
List<EntityLivingBase> detectedEntities=worldObj.getEntitiesWithinAABB(EntityLivingBase.class,AxisAlignedBB.getBoundingBox(x,y,z,x + 1,y + 1,z + 1));
Entity entity=detectedEntities.isEmpty() ? null : detectedEntities.get(worldObj.rand.nextInt(detectedEntities.size()));
if (entity != null) {
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack) && stack.getItem().itemInteractionForEntity(stack,player,(EntityLivingBase)entity)) return true;
if (entity instanceof EntityAnimal && ((EntityAnimal)entity).interact(player)) return true;
}
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack) && stack.getItem().onItemUseFirst(stack,player,worldObj,x,y,z,faceDir.ordinal(),dx,dy,dz)) return true;
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
if (!worldObj.isAirBlock(x,y,x) && block.onBlockActivated(worldObj,x,y,z,player,faceDir.ordinal(),dx,dy,dz)) return true;
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack) && stack.getItem().onItemUse(stack,player,worldObj,x,y,z,faceDir.ordinal(),dx,dy,dz)) return true;
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack)) {
ItemStack copy=stack.copy();
stack.getItem().onItemRightClick(stack,worldObj,player);
if (!copy.isItemEqual(stack)) return true;
}
}
return false;
}
 catch (Throwable e) {
BluePower.log.error("String_Node_Str");
e.printStackTrace();
return true;
}
}

Fixed version (ground truth):
/** 
 * Be sure to set up the fake player's hotbar with the right clicked items. starting with hotbar slot 0.
 * @param player
 * @param useItems this method will set the current selected slot of the fake player to 0, and move on to the next slot useItems - 1 times.So to use the first slot only, pass 1, to use the full hotbar, 9.
 * @return
 */
protected boolean rightClick(FakePlayer player,int useItems){
  if (useItems > 9)   throw new IllegalArgumentException("String_Node_Str" + useItems + "String_Node_Str");
  ForgeDirection faceDir=getFacingDirection();
  int dx=faceDir.offsetX;
  int dy=faceDir.offsetY;
  int dz=faceDir.offsetZ;
  int x=xCoord + dx;
  int y=yCoord + dy;
  int z=zCoord + dz;
  player.setPosition(x,y,z);
  player.rotationPitch=faceDir.offsetY * -90;
switch (faceDir) {
case NORTH:
    player.rotationYaw=180;
  break;
case SOUTH:
player.rotationYaw=0;
break;
case WEST:
player.rotationYaw=90;
break;
case EAST:
player.rotationYaw=-90;
}
try {
PlayerInteractEvent event=ForgeEventFactory.onPlayerInteract(player,Action.RIGHT_CLICK_AIR,x,y,z,faceDir.ordinal(),worldObj);
if (event.isCanceled()) return false;
Block block=worldObj.getBlock(x,y,z);
List<EntityLivingBase> detectedEntities=worldObj.getEntitiesWithinAABB(EntityLivingBase.class,AxisAlignedBB.getBoundingBox(x,y,z,x + 1,y + 1,z + 1));
Entity entity=detectedEntities.isEmpty() ? null : detectedEntities.get(worldObj.rand.nextInt(detectedEntities.size()));
if (entity != null) {
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack) && stack.getItem().itemInteractionForEntity(stack,player,(EntityLivingBase)entity)) return true;
if (entity instanceof EntityAnimal && ((EntityAnimal)entity).interact(player)) return true;
}
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack) && stack.getItem().onItemUseFirst(stack,player,worldObj,xCoord,yCoord,zCoord,faceDir.ordinal(),dx,dy,dz)) return true;
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
if (!worldObj.isAirBlock(x,y,x) && block.onBlockActivated(worldObj,x,y,z,player,faceDir.ordinal(),dx,dy,dz)) return true;
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack) && stack.getItem().onItemUse(stack,player,worldObj,xCoord,yCoord,zCoord,faceDir.ordinal(),dx,dy,dz)) return true;
}
for (int i=0; i < useItems; i++) {
player.inventory.currentItem=i;
ItemStack stack=player.getCurrentEquippedItem();
if (canDeployItem(stack)) {
ItemStack copy=stack.copy();
stack.getItem().onItemRightClick(stack,worldObj,player);
if (!copy.isItemEqual(stack)) return true;
}
}
return false;
}
 catch (Throwable e) {
BluePower.log.error("String_Node_Str");
e.printStackTrace();
return true;
}
}