# ADR-0002 - Avoid using Java serialization

## Date

2012-12-01

## Context

In Gradle we often need to serialize in-memory objects for caching, or to transmit them across process barriers, etc.
Java serialization is one way to implement this, however, despite its simplicity of implementation, it has several drawbacks:

- **Performance:**
Java's built-in serialization mechanism is often slower compared to other serialization solutions.

+1.000000e+000 +2.000000e+000 +3.000000e+000 +4.000000e+000...

0.676 responseBodyStart
0.679 responseBodyEnd
0.679 connectionReleased
0.680 callEnd
REQUEST 2 (pooled connection)
0.000 callStart
0.001 connectionAcquired
0.001 requestHeadersStart
0.001 requestHeadersEnd
0.002 responseHeadersStart
0.082 responseHeadersEnd
0.082 responseBodyStart
0.082 responseBodyEnd
0.083 connectionReleased
0.083 callEnd
```

git tag v1.0.3
git tag submod/v1.0.4

# 10
at 2018-02-19T18:12:59-05:00
git apply ../0001-submod-go.mod-add-require-vgotest1-v1.1.0.patch
git commit -a -m 'submod/go.mod: add require vgotest1 v1.1.0'
git tag submod/v1.0.5

# 11
at 2018-02-19T18:13:36-05:00
git apply ../0002-go.mod-add-require-submod-v1.0.5.patch
git commit -a -m 'go.mod: add require submod v1.0.5'
git tag v1.1.0

git commit -m 'submod/go.mod'
git tag v1.0.3
git tag submod/v1.0.4

at 2018-02-19T18:12:59-05:00
git apply 0001-submod-go.mod-add-require-vgotest1-v1.1.0.patch
git commit -a -m 'submod/go.mod: add require vgotest1 v1.1.0'
git tag submod/v1.0.5

at 2018-02-19T18:13:36-05:00
git apply 0002-go.mod-add-require-submod-v1.0.5.patch
git commit -a -m 'go.mod: add require submod v1.0.5'
git tag v1.1.0

git checkout master

  func.return %4#0, %4#1 : tensor<1x1x!tf_type.string>, tensor<1x1x!tf_type.string>
// CHECK: "tf.ParseExample"(
// CHECK-SAME: operandSegmentSizes = array<i32: 1, 1, 0, 2, 2>, resultSegmentSizes = array<i32: 0, 0, 0, 2>
}

// CHECK-LABEL: TfMapDataset
func.func @TfMapDataset(%arg0: tensor<!tf_type.variant>) -> (tensor<!tf_type.variant>) {
  %0 = "tfl.custom"(%arg0) {
    custom_code = "FlexMapDataset",

00000030  73 db fc 90 18 3f ac e5  1f 5d 86 24 80 75 ec a3  |s....?...].$.u..|
00000040  c6 aa e9 05 c1 47 21 bd  30 f6 41 43 c0 2f 00 00  |.....G!.0.AC./..|
00000050  11 ff 01 00 01 00 00 0b  00 04 03 00 01 02 00 17  |................|
00000060  00 00 16 03 03 02 66 0b  00 02 62 00 02 5f 00 02  |......f...b.._..|
00000070  5c 30 82 02 58 30 82 01  8d a0 03 02 01 02 02 11  |\0..X0..........|

000000b0  00 1a 00 18 08 04 04 03  08 07 08 05 08 06 04 01  |................|
000000c0  05 01 06 01 05 03 06 03  02 01 02 03 00 2b 00 09  |.............+..|
000000d0  08 03 04 03 03 03 02 03  01 00 33 00 26 00 24 00  |..........3.&.$.|
000000e0  1d 00 20 2f e5 7d a3 47  cd 62 43 15 28 da ac 5f  |.. /.}.G.bC.(.._|
000000f0  bb 29 07 30 ff f6 84 af  c4 cf c2 ed 90 99 5f 58  |.).0.........._X|

00000030  76 96 1e 2a 57 74 4b db  9a 11 0a af 06 ea 3b 20  |v..*WtK.......; |
00000040  a8 81 51 9d 41 ef f1 f9  23 87 18 cb c0 2c 00 00  |..Q.A...#....,..|
00000050  11 ff 01 00 01 00 00 0b  00 04 03 00 01 02 00 17  |................|
00000060  00 00 16 03 03 02 0e 0b  00 02 0a 00 02 07 00 02  |................|
00000070  04 30 82 02 00 30 82 01  62 02 09 00 b8 bf 2d 47  |.0...0..b.....-G|

00000030  e7 9c f5 40 57 51 b8 f8  5a 8d f2 eb ce 83 18 2d  |...@WQ..Z......-|
00000040  e3 28 55 6f 17 08 23 88  57 b1 a0 e4 cc a9 00 00  |.(Uo..#.W.......|
00000050  11 ff 01 00 01 00 00 0b  00 04 03 00 01 02 00 17  |................|
00000060  00 00 16 03 03 02 0e 0b  00 02 0a 00 02 07 00 02  |................|
00000070  04 30 82 02 00 30 82 01  62 02 09 00 b8 bf 2d 47  |.0...0..b.....-G|