Program: 169688
Project: 169688
Buggy source:
@Override public void doExplode(){
  int r=this.callCount;
  if (!this.world().isRemote) {
    if (this.thread != null && this.thread.isComplete) {
      Iterator<Vector3> it=this.thread.results.iterator();
      while (it.hasNext()) {
        Vector3 targetPosition=it.next();
        double distance=targetPosition.add(position).magnitude();
        if (distance > r || distance < r - 3)         continue;
        Block blockID=targetPosition.getBlock(world());
        double hardness=targetPosition.getHardness(world());
        if (hardness < 0 || hardness > 10000)         continue;
        int metadata=this.world().getBlockMetadata(targetPosition.xi(),targetPosition.yi(),targetPosition.zi());
        if (distance < r - 1 || this.world().rand.nextInt(3) > 0) {
          if (blockID == ICBMExplosion.blockExplosive) {
            BlockExplosive.yinZha(this.world(),targetPosition.xi(),targetPosition.yi(),targetPosition.zi(),((TileExplosive)this.world().getTileEntity(targetPosition.xi(),targetPosition.yi(),targetPosition.zi())).explosiveID,1);
          }
 else {
            this.world().setBlockToAir(targetPosition.xi(),targetPosition.yi(),targetPosition.zi());
          }
          targetPosition.add(0.5D);
          if (this.world().rand.nextFloat() < 0.3 * (this.getRadius() - r)) {
            EntityFlyingBlock entity=new EntityFlyingBlock(this.world(),targetPosition,blockID,metadata);
            this.world().spawnEntityInWorld(entity);
            entity.yawChange=50 * this.world().rand.nextFloat();
            entity.pitchChange=100 * this.world().rand.nextFloat();
          }
          it.remove();
        }
      }
    }
  }
  int radius=2 * this.callCount;
  AxisAlignedBB bounds=AxisAlignedBB.getBoundingBox(position.x() - radius,position.y() - radius,position.z() - radius,position.x() + radius,position.y() + radius,position.z() + radius);
  List<Entity> allEntities=this.world().getEntitiesWithinAABB(Entity.class,bounds);
synchronized (allEntities) {
    for (Iterator it=allEntities.iterator(); it.hasNext(); ) {
      Entity entity=(Entity)it.next();
      if (entity instanceof EntityMissile) {
        ((EntityMissile)entity).setExplode();
        break;
      }
 else {
        double xDifference=entity.posX - position.x();
        double zDifference=entity.posZ - position.z();
        r=(int)this.getRadius();
        if (xDifference < 0)         r=(int)-this.getRadius();
        entity.motionX+=(r - xDifference) * 0.02 * this.world().rand.nextFloat();
        entity.motionY+=3 * this.world().rand.nextFloat();
        r=(int)this.getRadius();
        if (zDifference < 0)         r=(int)-this.getRadius();
        entity.motionZ+=(r - zDifference) * 0.02 * this.world().rand.nextFloat();
      }
    }
  }
  if (this.callCount > this.getRadius()) {
    this.controller.endExplosion();
  }
}

Fixed version (ground truth):
@Override public void doExplode(){
  int r=this.callCount;
  if (!this.world().isRemote) {
    if (this.thread != null && this.thread.isComplete) {
      Iterator<Vector3> it=this.thread.results.iterator();
      while (it.hasNext()) {
        Vector3 targetPosition=it.next();
        double distance=targetPosition.add(position).magnitude();
        if (distance > r || distance < r - 3)         continue;
        Block blockID=targetPosition.getBlock(world());
        TileEntity ent=targetPosition.getTileEntity(world());
        double hardness=targetPosition.getHardness(world());
        if (hardness < 0 || hardness > 10000)         continue;
        int metadata=this.world().getBlockMetadata(targetPosition.xi(),targetPosition.yi(),targetPosition.zi());
        if (distance < r - 1 || this.world().rand.nextInt(3) > 0) {
          if (ent instanceof TileExplosive) {
            ((TileExplosive)ent).explode(1);
          }
 else {
            this.world().setBlockToAir(targetPosition.xi(),targetPosition.yi(),targetPosition.zi());
          }
          targetPosition.add(0.5D);
          if (this.world().rand.nextFloat() < 0.3 * (this.getRadius() - r)) {
            EntityFlyingBlock entity=new EntityFlyingBlock(this.world(),targetPosition,blockID,metadata);
            this.world().spawnEntityInWorld(entity);
            entity.yawChange=50 * this.world().rand.nextFloat();
            entity.pitchChange=100 * this.world().rand.nextFloat();
          }
          it.remove();
        }
      }
    }
  }
  int radius=2 * this.callCount;
  AxisAlignedBB bounds=AxisAlignedBB.getBoundingBox(position.x() - radius,position.y() - radius,position.z() - radius,position.x() + radius,position.y() + radius,position.z() + radius);
  List<Entity> allEntities=this.world().getEntitiesWithinAABB(Entity.class,bounds);
synchronized (allEntities) {
    for (Iterator it=allEntities.iterator(); it.hasNext(); ) {
      Entity entity=(Entity)it.next();
      if (entity instanceof EntityMissile) {
        ((EntityMissile)entity).setExplode();
        break;
      }
 else {
        double xDifference=entity.posX - position.x();
        double zDifference=entity.posZ - position.z();
        r=(int)this.getRadius();
        if (xDifference < 0)         r=(int)-this.getRadius();
        entity.motionX+=(r - xDifference) * 0.02 * this.world().rand.nextFloat();
        entity.motionY+=3 * this.world().rand.nextFloat();
        r=(int)this.getRadius();
        if (zDifference < 0)         r=(int)-this.getRadius();
        entity.motionZ+=(r - zDifference) * 0.02 * this.world().rand.nextFloat();
      }
    }
  }
  if (this.callCount > this.getRadius()) {
    this.controller.endExplosion();
  }
}