java.util.ArrayList.addAll C# (CSharp) Method

        public override bool addAll(int arg0, java.util.Collection arg1)
        {
            return global::MonoJavaBridge.JavaBridge.CallBooleanMethod(this, global::java.util.ArrayList.staticClass, "addAll", "(ILjava/util/Collection;)Z", ref global::java.util.ArrayList._m10, global::MonoJavaBridge.JavaBridge.ConvertToValue(arg0), global::MonoJavaBridge.JavaBridge.ConvertToValue(arg1));
        }

        public void doEffects()
        {
            worldObj.playSoundEffect(explosionX, explosionY, explosionZ, "random.explode", 4F,
                                     (1.0F + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat())*0.2F)*0.7F);
            var arraylist = new ArrayList();
            arraylist.addAll(destroyedBlockPositions);
            for (int i = arraylist.size() - 1; i >= 0; i--)
            {
                var chunkposition = (ChunkPosition) arraylist.get(i);
                int j = chunkposition.x;
                int k = chunkposition.y;
                int l = chunkposition.z;
                int i1 = worldObj.getBlockId(j, k, l);
                for (int j1 = 0; j1 < 1; j1++)
                {
                    double d = j + worldObj.rand.nextFloat();
                    double d1 = k + worldObj.rand.nextFloat();
                    double d2 = l + worldObj.rand.nextFloat();
                    double d3 = d - explosionX;
                    double d4 = d1 - explosionY;
                    double d5 = d2 - explosionZ;
                    double d6 = MathHelper.sqrt_double(d3*d3 + d4*d4 + d5*d5);
                    d3 /= d6;
                    d4 /= d6;
                    d5 /= d6;
                    double d7 = 0.5D/(d6/explosionSize + 0.10000000000000001D);
                    d7 *= worldObj.rand.nextFloat()*worldObj.rand.nextFloat() + 0.3F;
                    d3 *= d7;
                    d4 *= d7;
                    d5 *= d7;
                    worldObj.spawnParticle("explode", (d + explosionX*1.0D)/2D, (d1 + explosionY*1.0D)/2D,
                                           (d2 + explosionZ*1.0D)/2D, d3, d4, d5);
                    worldObj.spawnParticle("smoke", d, d1, d2, d3, d4, d5);
                }

                if (i1 > 0)
                {
                    Block.blocksList[i1].dropBlockAsItemWithChance(worldObj, j, k, l, worldObj.getBlockMetadata(j, k, l),
                                                                   0.3F);
                    worldObj.setBlockWithNotify(j, k, l, 0);
                    Block.blocksList[i1].onBlockDestroyedByExplosion(worldObj, j, k, l);
                }
            }
        }