[1.9]EntityThrowable bug

I have made a custom throwable entity which causes damage if it hits a living entities.

Now sometimes the custom entity dosen't even fly away, just straight causes damage to the thrower itself.

Mostly happends when you are really close to another living entity.

You can try this with snowballs too, if you walk pass or close to a zombie, than you go like 2-3 blocks away, the snowball will most likely explode in fornt of you, and never cause knockback on the zombie.

This must be some bug with the EntityThrowable class's onUpdate method because only this part is revalent to the actual entity raytrace part:

Entity entity = null;
        List<Entity> list = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox().addCoord(this.motionX, this.motionY, this.motionZ).expandXyz(1.0D));
        double d0 = 0.0D;
        boolean flag = false;

        for (int i = 0; i < list.size(); ++i)
        {
            Entity entity1 = (Entity)list.get(i);

            if (entity1.canBeCollidedWith())
            {
                if (entity1 == this.field_184539_c)
                {
                    flag = true;
                }
                else if (this.ticksExisted < 2 && this.field_184539_c == null)
                {
                    this.field_184539_c = entity1;
                    flag = true;
                }
                else
                {
                    flag = false;
                    AxisAlignedBB axisalignedbb = entity1.getEntityBoundingBox().expandXyz(0.30000001192092896D);
                    RayTraceResult raytraceresult1 = axisalignedbb.calculateIntercept(vec3d, vec3d1);

                    if (raytraceresult1 != null)
                    {
                        double d1 = vec3d.squareDistanceTo(raytraceresult1.hitVec);

                        if (d1 < d0 || d0 == 0.0D)
                        {
                            entity = entity1;
                            d0 = d1;
                        }
                    }
                }
            }
        }

        if (this.field_184539_c != null)
        {
            if (flag)
            {
                this.field_184540_av = 2;
            }
            else if (this.field_184540_av-- <= 0)
            {
                this.field_184539_c = null;
            }
        }

        if (entity != null)
        {
            raytraceresult = new RayTraceResult(entity);
        }

My guess is the "entity" is sometimes the actual thrower.