Program: 178749
Project: 178749
Buggy source:
public static Location useGel(Player player,Location LocTo,Vector vector){
  Vector fallingspeed=player.getVelocity();
  Region region=RegionManager.getRegion(LocTo);
  Block block=LocTo.getBlock();
  if (BlockUtil.compareBlockToString(block.getRelative(0,-1,0),region.getString(RegionSetting.RED_GEL_BLOCK)))   return redGel(player,vector,region);
  if (fallingspeed.getY() <= 0) {
    if (BlockUtil.compareBlockToString(block.getRelative(0,-1,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,0);
 else     if (Math.abs(vector.getY()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(0,-2,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,0);
 else     if (Math.abs(vector.getY()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(0,-3,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,0);
  }
  if (vector.getX() >= 0) {
    if (BlockUtil.compareBlockToString(block.getRelative(1,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,1);
 else     if (Math.abs(vector.getX()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(2,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,1);
 else     if (Math.abs(vector.getX()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(3,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,1);
  }
 else   if (vector.getX() <= 0) {
    if (BlockUtil.compareBlockToString(block.getRelative(-1,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,2);
 else     if (Math.abs(vector.getX()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(-2,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,2);
 else     if (Math.abs(vector.getX()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(-3,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,2);
  }
  if (vector.getZ() >= 0) {
    if (BlockUtil.compareBlockToString(block.getRelative(0,0,1),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,3);
 else     if (Math.abs(vector.getZ()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(0,0,2),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,3);
 else     if (Math.abs(vector.getZ()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(0,0,3),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,3);
  }
 else   if (vector.getZ() <= 0) {
    if (BlockUtil.compareBlockToString(block.getRelative(0,0,-1),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,4);
 else     if (Math.abs(vector.getZ()) < 0.3 && BlockUtil.compareBlockToString(block.getRelative(0,0,-2),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,4);
 else     if (Math.abs(vector.getZ()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(0,0,-3),region.getString(RegionSetting.BLUE_GEL_BLOCK)))     return BlueGel(player,vector,region,4);
  }
  return null;
}

Fixed version (ground truth):
public static Location useGel(Player player,Location LocTo,Vector vector){
  Vector fallingspeed=player.getVelocity();
  Region region=RegionManager.getRegion(LocTo);
  Block block=LocTo.getBlock();
  if (region.getBoolean(RegionSetting.ENABLE_RED_GEL_BLOCKS) && BlockUtil.compareBlockToString(block.getRelative(0,-1,0),region.getString(RegionSetting.RED_GEL_BLOCK)))   return redGel(player,vector,region);
  if (region.getBoolean(RegionSetting.ENABLE_BLUE_GEL_BLOCKS)) {
    if (fallingspeed.getY() <= 0) {
      if (BlockUtil.compareBlockToString(block.getRelative(0,-1,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,0);
 else       if (Math.abs(vector.getY()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(0,-2,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,0);
 else       if (Math.abs(vector.getY()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(0,-3,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,0);
    }
    if (vector.getX() >= 0) {
      if (BlockUtil.compareBlockToString(block.getRelative(1,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,1);
 else       if (Math.abs(vector.getX()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(2,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,1);
 else       if (Math.abs(vector.getX()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(3,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,1);
    }
 else     if (vector.getX() <= 0) {
      if (BlockUtil.compareBlockToString(block.getRelative(-1,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,2);
 else       if (Math.abs(vector.getX()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(-2,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,2);
 else       if (Math.abs(vector.getX()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(-3,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,2);
    }
    if (vector.getZ() >= 0) {
      if (BlockUtil.compareBlockToString(block.getRelative(0,0,1),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,3);
 else       if (Math.abs(vector.getZ()) > 0.3 && BlockUtil.compareBlockToString(block.getRelative(0,0,2),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,3);
 else       if (Math.abs(vector.getZ()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(0,0,3),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,3);
    }
 else     if (vector.getZ() <= 0) {
      if (BlockUtil.compareBlockToString(block.getRelative(0,0,-1),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,4);
 else       if (Math.abs(vector.getZ()) < 0.3 && BlockUtil.compareBlockToString(block.getRelative(0,0,-2),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,4);
 else       if (Math.abs(vector.getZ()) > 0.5 && BlockUtil.compareBlockToString(block.getRelative(0,0,-3),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return BlueGel(player,vector,region,4);
    }
  }
  return null;
}