Program: 169871
Project: 169871
Buggy source:
@Override public void doExplode(){
  int r=this.callCount;
  if (!this.worldObj.isRemote) {
    if (this.thread != null && this.thread.isComplete) {
      Iterator<Vector3> it=this.thread.results.iterator();
      while (it.hasNext()) {
        Vector3 targetPosition=it.next();
        double distance=Vector3.distance(targetPosition,position);
        if (distance > r || distance < r - 3)         continue;
        int blockID=this.worldObj.getBlockId(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ());
        if (blockID == 0 || blockID == Block.bedrock.blockID || blockID == Block.obsidian.blockID)         continue;
        if (Block.blocksList[blockID] instanceof IForceFieldBlock)         continue;
        int metadata=this.worldObj.getBlockMetadata(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ());
        if (distance < r - 1 || this.worldObj.rand.nextInt(3) > 0) {
          if (blockID == ICBMExplosion.blockExplosive.blockID) {
            BlockExplosive.yinZha(this.worldObj,targetPosition.intX(),targetPosition.intY(),targetPosition.intZ(),((TileEntityExplosive)this.worldObj.getBlockTileEntity(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ())).haoMa,1);
          }
 else {
            this.worldObj.setBlockToAir(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ());
          }
          targetPosition.translate(0.5D);
          if (this.worldObj.rand.nextFloat() < 0.3 * (this.getRadius() - r)) {
            EntityFlyingBlock entity=new EntityFlyingBlock(this.worldObj,targetPosition,blockID,metadata);
            this.worldObj.spawnEntityInWorld(entity);
            entity.yawChange=50 * this.worldObj.rand.nextFloat();
            entity.pitchChange=100 * this.worldObj.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.worldObj.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.worldObj.rand.nextFloat();
        entity.motionY+=3 * this.worldObj.rand.nextFloat();
        r=(int)this.getRadius();
        if (zDifference < 0)         r=(int)-this.getRadius();
        entity.motionZ+=(r - zDifference) * 0.02 * this.worldObj.rand.nextFloat();
      }
    }
  }
  if (this.callCount > this.getRadius()) {
    this.controller.endExplosion();
  }
}

Fixed version (ground truth):
@Override public void doExplode(){
  int r=this.callCount;
  if (!this.worldObj.isRemote) {
    if (this.thread != null && this.thread.isComplete) {
      Iterator<Vector3> it=this.thread.results.iterator();
      while (it.hasNext()) {
        Vector3 targetPosition=it.next();
        double distance=Vector3.distance(targetPosition,position);
        if (distance > r || distance < r - 3)         continue;
        int blockID=this.worldObj.getBlockId(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ());
        if (blockID == 0 || blockID == Block.bedrock.blockID || blockID == Block.obsidian.blockID)         continue;
        if (Block.blocksList[blockID] instanceof IForceFieldBlock)         continue;
        int metadata=this.worldObj.getBlockMetadata(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ());
        if (distance < r - 1 || this.worldObj.rand.nextInt(3) > 0) {
          if (blockID == ICBMExplosion.blockExplosive.blockID) {
            BlockExplosive.yinZha(this.worldObj,targetPosition.intX(),targetPosition.intY(),targetPosition.intZ(),((TileExplosive)this.worldObj.getBlockTileEntity(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ())).haoMa,1);
          }
 else {
            this.worldObj.setBlockToAir(targetPosition.intX(),targetPosition.intY(),targetPosition.intZ());
          }
          targetPosition.translate(0.5D);
          if (this.worldObj.rand.nextFloat() < 0.3 * (this.getRadius() - r)) {
            EntityFlyingBlock entity=new EntityFlyingBlock(this.worldObj,targetPosition,blockID,metadata);
            this.worldObj.spawnEntityInWorld(entity);
            entity.yawChange=50 * this.worldObj.rand.nextFloat();
            entity.pitchChange=100 * this.worldObj.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.worldObj.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.worldObj.rand.nextFloat();
        entity.motionY+=3 * this.worldObj.rand.nextFloat();
        r=(int)this.getRadius();
        if (zDifference < 0)         r=(int)-this.getRadius();
        entity.motionZ+=(r - zDifference) * 0.02 * this.worldObj.rand.nextFloat();
      }
    }
  }
  if (this.callCount > this.getRadius()) {
    this.controller.endExplosion();
  }
}