Program: 133930
Project: 133930
Buggy source:
@Override public void progress(){
  progressCounter++;
  if (!bPlayer.canBendIgnoreBindsCooldowns(this)) {
    remove();
    return;
  }
  if (type != AbilityType.RELEASE) {
    if (!player.hasPermission("String_Node_Str")) {
      remove();
      return;
    }
 else     if (!bPlayer.getBoundAbilityName().equalsIgnoreCase(getName())) {
      remove();
      return;
    }
  }
  if (type == AbilityType.CLICK) {
    if (origin == null) {
      removeOldType(player,AbilityType.CLICK);
      Block block=getWaterSourceBlock(player,selectRange,plant);
      if (block == null) {
        remove();
        return;
      }
      Block blockAbove=block.getRelative(BlockFace.UP);
      if (blockAbove.getType() != Material.AIR && !isWaterbendable(blockAbove)) {
        remove();
        return;
      }
      origin=block.getLocation();
      if (!isWaterbendable(block) || GeneralMethods.isRegionProtectedFromBuild(this,origin)) {
        remove();
        return;
      }
 else       if (iceOnly && !(isIcebendable(block) || isSnow(block))) {
        remove();
        return;
      }
    }
    if (player.getLocation().distanceSquared(origin) > selectRange * selectRange) {
      remove();
      return;
    }
 else     if (player.isSneaking()) {
      setType(AbilityType.SHIFT);
      return;
    }
    playFocusWaterEffect(origin.getBlock());
  }
 else   if (type == AbilityType.SHIFT) {
    if (direction == null) {
      direction=player.getEyeLocation().getDirection();
    }
    if (!charging) {
      if (!containsType(player,AbilityType.SHIFT)) {
        removeOldType(player,AbilityType.CLICK);
        remove();
        return;
      }
      charging=true;
      animation=AnimateState.RISE;
      location=origin.clone();
      if (isPlant(origin.getBlock())) {
        new PlantRegrowth(player,origin.getBlock());
      }
    }
    removeOldType(player,AbilityType.CLICK);
    if (!player.isSneaking()) {
      if (System.currentTimeMillis() - time > chargeTime) {
        setType(AbilityType.RELEASE);
        setAnimation(AnimateState.SHRINK);
      }
 else {
        remove();
      }
      return;
    }
    if (animation == AnimateState.RISE && location != null) {
      revertBlocks();
      location.add(0,animationSpeed,0);
      Block block=location.getBlock();
      if (!(isWaterbendable(block) || block.getType() == Material.AIR) || GeneralMethods.isRegionProtectedFromBuild(this,block.getLocation())) {
        remove();
        return;
      }
      createBlock(block,Material.STATIONARY_WATER);
      if (location.distanceSquared(origin) > 4) {
        animation=AnimateState.TOWARD_PLAYER;
      }
    }
 else     if (animation == AnimateState.TOWARD_PLAYER) {
      revertBlocks();
      Location eyeLoc=player.getTargetBlock((HashSet<Material>)null,2).getLocation();
      eyeLoc.setY(player.getEyeLocation().getY());
      Vector vec=GeneralMethods.getDirection(location,eyeLoc);
      location.add(vec.normalize().multiply(animationSpeed));
      Block block=location.getBlock();
      if (!(isWaterbendable(block) || block.getType() == Material.AIR) || GeneralMethods.isRegionProtectedFromBuild(this,block.getLocation())) {
        remove();
        return;
      }
      createBlock(block,Material.STATIONARY_WATER);
      if (location.distanceSquared(eyeLoc) < 1.7) {
        animation=AnimateState.CIRCLE;
        Vector tempDir=player.getLocation().getDirection();
        tempDir.setY(0);
        direction=tempDir.normalize();
        revertBlocks();
      }
    }
 else     if (animation == AnimateState.CIRCLE) {
      drawCircle(120,5);
    }
  }
 else   if (type == AbilityType.RELEASE) {
    if (animation == AnimateState.SHRINK) {
      radius-=0.20;
      drawCircle(360,15);
      if (radius < 1) {
        revertBlocks();
        time=System.currentTimeMillis();
        animation=null;
      }
    }
 else {
      moving=true;
      if ((System.currentTimeMillis() - time > flightTime && !bPlayer.isAvatarState()) || player.isSneaking()) {
        remove();
        return;
      }
      player.setFallDistance(0f);
      double currentSpeed=speed - (speed * (System.currentTimeMillis() - time) / flightTime);
      double nightSpeed=getNightFactor(currentSpeed * 0.9);
      currentSpeed=nightSpeed > currentSpeed ? nightSpeed : currentSpeed;
      if (bPlayer.isAvatarState()) {
        currentSpeed=getNightFactor(speed);
      }
      player.setVelocity(player.getEyeLocation().getDirection().normalize().multiply(currentSpeed));
      for (      Block block : GeneralMethods.getBlocksAroundPoint(player.getLocation().add(0,-1,0),waveRadius)) {
        if (block.getType() == Material.AIR && !GeneralMethods.isRegionProtectedFromBuild(this,block.getLocation())) {
          if (iceWave) {
            createBlockDelay(block,Material.ICE,(byte)0,2L);
          }
 else {
            createBlock(block,Material.STATIONARY_WATER,(byte)0);
          }
        }
      }
      revertBlocksDelay(20L);
      if (iceWave && progressCounter % 3 == 0) {
        for (        Entity entity : GeneralMethods.getEntitiesAroundPoint(player.getLocation().add(0,-1,0),waveRadius * 1.5)) {
          if (entity != this.player && entity instanceof LivingEntity && !affectedEntities.contains(entity)) {
            affectedEntities.add(entity);
            final double augment=getNightFactor(player.getWorld());
            DamageHandler.damageEntity(entity,damage,this);
            final Player fplayer=this.player;
            final Entity fent=entity;
            new BukkitRunnable(){
              @Override public void run(){
                createIceSphere(fplayer,fent,augment * 2.5);
              }
            }
.runTaskLater(ProjectKorra.plugin,6);
          }
        }
      }
    }
  }
}

Fixed version (ground truth):
@Override public void progress(){
  progressCounter++;
  if (!bPlayer.canBendIgnoreBindsCooldowns(this)) {
    remove();
    return;
  }
  if (type != AbilityType.RELEASE) {
    if (!player.hasPermission("String_Node_Str")) {
      remove();
      return;
    }
 else     if (!bPlayer.getBoundAbilityName().equalsIgnoreCase(getName())) {
      remove();
      return;
    }
  }
  if (type == AbilityType.CLICK) {
    if (origin == null) {
      removeOldType(player,AbilityType.CLICK);
      Block block=getWaterSourceBlock(player,selectRange,plant);
      if (block == null) {
        remove();
        return;
      }
      Block blockAbove=block.getRelative(BlockFace.UP);
      if (blockAbove.getType() != Material.AIR && !isWaterbendable(blockAbove)) {
        remove();
        return;
      }
      origin=block.getLocation();
      if (!isWaterbendable(block) || GeneralMethods.isRegionProtectedFromBuild(this,origin)) {
        remove();
        return;
      }
 else       if (iceOnly && !(isIcebendable(block) || isSnow(block))) {
        remove();
        return;
      }
    }
    if (player.getLocation().distanceSquared(origin) > selectRange * selectRange) {
      remove();
      return;
    }
 else     if (player.isSneaking()) {
      setType(AbilityType.SHIFT);
      return;
    }
    playFocusWaterEffect(origin.getBlock());
  }
 else   if (type == AbilityType.SHIFT) {
    if (direction == null) {
      direction=player.getEyeLocation().getDirection();
    }
    if (!charging) {
      if (!containsType(player,AbilityType.SHIFT)) {
        removeOldType(player,AbilityType.CLICK);
        remove();
        return;
      }
      charging=true;
      animation=AnimateState.RISE;
      location=origin.clone();
      if (isPlant(origin.getBlock())) {
        new PlantRegrowth(player,origin.getBlock());
      }
    }
    removeOldType(player,AbilityType.CLICK);
    if (!player.isSneaking()) {
      if (System.currentTimeMillis() - time > chargeTime) {
        setType(AbilityType.RELEASE);
        setAnimation(AnimateState.SHRINK);
      }
 else {
        remove();
      }
      return;
    }
    if (animation == AnimateState.RISE && location != null) {
      revertBlocks();
      location.add(0,animationSpeed,0);
      Block block=location.getBlock();
      if (!(isWaterbendable(block) || block.getType() == Material.AIR) || GeneralMethods.isRegionProtectedFromBuild(this,block.getLocation())) {
        remove();
        return;
      }
      createBlock(block,Material.STATIONARY_WATER);
      if (location.distanceSquared(origin) > 4) {
        animation=AnimateState.TOWARD_PLAYER;
      }
    }
 else     if (animation == AnimateState.TOWARD_PLAYER) {
      revertBlocks();
      Location eyeLoc=player.getTargetBlock((HashSet<Material>)null,2).getLocation();
      eyeLoc.setY(player.getEyeLocation().getY());
      Vector vec=GeneralMethods.getDirection(location,eyeLoc);
      location.add(vec.normalize().multiply(animationSpeed));
      Block block=location.getBlock();
      if (!(isWaterbendable(block) || block.getType() == Material.AIR) || GeneralMethods.isRegionProtectedFromBuild(this,block.getLocation())) {
        remove();
        return;
      }
      createBlock(block,Material.STATIONARY_WATER);
      if (location.distanceSquared(eyeLoc) < 1.7) {
        animation=AnimateState.CIRCLE;
        Vector tempDir=player.getLocation().getDirection();
        tempDir.setY(0);
        direction=tempDir.normalize();
        revertBlocks();
      }
    }
 else     if (animation == AnimateState.CIRCLE) {
      drawCircle(120,5);
    }
  }
 else   if (type == AbilityType.RELEASE) {
    if (animation == AnimateState.SHRINK) {
      radius-=0.20;
      drawCircle(360,15);
      if (radius < 1) {
        revertBlocks();
        time=System.currentTimeMillis();
        animation=null;
      }
    }
 else {
      moving=true;
      if ((System.currentTimeMillis() - time > flightTime && !bPlayer.isAvatarState()) || player.isSneaking()) {
        remove();
        return;
      }
      player.setFallDistance(0f);
      double currentSpeed=speed - (speed * (System.currentTimeMillis() - time) / flightTime);
      double nightSpeed=getNightFactor(currentSpeed * 0.9);
      currentSpeed=nightSpeed > currentSpeed ? nightSpeed : currentSpeed;
      if (bPlayer.isAvatarState()) {
        currentSpeed=getNightFactor(speed);
      }
      player.setVelocity(player.getEyeLocation().getDirection().normalize().multiply(currentSpeed));
      for (      Block block : GeneralMethods.getBlocksAroundPoint(player.getLocation().add(0,-1,0),waveRadius)) {
        if (block.getType() == Material.AIR && !GeneralMethods.isRegionProtectedFromBuild(this,block.getLocation())) {
          if (iceWave) {
            createBlockDelay(block,Material.ICE,(byte)0,2L);
          }
 else {
            createBlock(block,Material.STATIONARY_WATER,(byte)0);
          }
        }
      }
      revertBlocksDelay(20L);
      if (iceWave && progressCounter % 3 == 0) {
        for (        Entity entity : GeneralMethods.getEntitiesAroundPoint(player.getLocation().add(0,-1,0),waveRadius * 1.5)) {
          if (entity != this.player && entity instanceof LivingEntity && !affectedEntities.contains(entity)) {
            affectedEntities.add(entity);
            final double augment=getNightFactor(player.getWorld());
            DamageHandler.damageEntity(entity,damage,this);
            final Player fplayer=this.player;
            final Entity fent=entity;
            new BukkitRunnable(){
              @Override public void run(){
                createIceSphere(fplayer,fent,augment * 2.5);
              }
            }
.runTaskLater(ProjectKorra.plugin,6);
          }
        }
        for (        Block block : FROZEN_BLOCKS.keySet()) {
          TempBlock tBlock=FROZEN_BLOCKS.get(block);
          if (tBlock.getLocation().distance(player.getLocation()) >= thawRadius) {
            tBlock.revertBlock();
            FROZEN_BLOCKS.remove(block);
          }
        }
      }
    }
  }
}