# JavaSerializableSerializer

Artifact: [androidx.savedstate:savedstate](https://developer.android.com/jetpack/androidx/releases/savedstate) [View Source](https://cs.android.com/search?q=file:androidx/savedstate/serialization/serializers/BuiltInSerializer.android.kt+class:androidx.savedstate.serialization.serializers.JavaSerializableSerializer) Added in [1.3.0](https://developer.android.com/jetpack/androidx/releases/savedstate#1.3.0)

*** ** * ** ***


```
public abstract class JavaSerializableSerializer<T extends Serializable> implements KSerializer<@NonNull T>
```

<br />

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A serializer for `https://developer.android.com/reference/java/io/Serializable.html`. This serializer uses `https://developer.android.com/reference/androidx/savedstate/SavedState`'s API directly to save/load a `https://developer.android.com/reference/java/io/Serializable.html`. You must extend this serializer for each of your `https://developer.android.com/reference/java/io/Serializable.html` subclasses.

Note that this serializer should be used with `https://developer.android.com/reference/androidx/savedstate/serialization/SavedStateEncoder` or `https://developer.android.com/reference/androidx/savedstate/serialization/SavedStateDecoder` only. Using it with other Encoders/Decoders may throw `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-illegal-argument-exception/index.html`.

```kotlin
import androidx.savedstate.serialization.serializers.JavaSerializableSerializer

@Serializable
data class MyModel(
    @Serializable(with = MyJavaSerializableSerializer::class)
    val serializable: MyJavaSerializable
)
```

| See also |
|---|---|
| `https://developer.android.com/reference/androidx/savedstate/serialization/package-summary#encodeToSavedState(kotlin.Any,androidx.savedstate.serialization.SavedStateConfiguration)` |   |
| `https://developer.android.com/reference/androidx/savedstate/serialization/package-summary#decodeFromSavedState(androidx.savedstate.SavedState,androidx.savedstate.serialization.SavedStateConfiguration)` |   |

## Summary

| ### Public constructors |
|---|
| `<T extends https://developer.android.com/reference/java/io/Serializable.html> https://developer.android.com/reference/androidx/savedstate/serialization/serializers/JavaSerializableSerializer#JavaSerializableSerializer()()` |

| ### Public methods |
|---|---|
| `final @https://developer.android.com/reference/androidx/annotation/NonNull T` | `https://developer.android.com/reference/androidx/savedstate/serialization/serializers/JavaSerializableSerializer#deserialize(kotlinx.serialization.encoding.Decoder)(@https://developer.android.com/reference/androidx/annotation/NonNull https://kotlinlang.org/api/kotlinx.serialization/kotlinx-serialization-core/kotlinx.serialization.encoding/-decoder/index.html decoder)` |
| `final @https://developer.android.com/reference/androidx/annotation/NonNull https://kotlinlang.org/api/kotlinx.serialization/kotlinx-serialization-core/kotlinx.serialization.descriptors/-serial-descriptor/index.html` | `https://developer.android.com/reference/androidx/savedstate/serialization/serializers/JavaSerializableSerializer#getDescriptor()()` |
| `final void` | `https://developer.android.com/reference/androidx/savedstate/serialization/serializers/JavaSerializableSerializer#serialize(kotlinx.serialization.encoding.Encoder,java.io.Serializable)(@https://developer.android.com/reference/androidx/annotation/NonNull https://kotlinlang.org/api/kotlinx.serialization/kotlinx-serialization-core/kotlinx.serialization.encoding/-encoder/index.html encoder, @https://developer.android.com/reference/androidx/annotation/NonNull T value)` |

## Public constructors

### JavaSerializableSerializer

```
public <T extends Serializable> JavaSerializableSerializer()
```

## Public methods

### deserialize

Added in [1.3.0](https://developer.android.com/jetpack/androidx/releases/savedstate#1.3.0)

```
public final @NonNull T deserialize(@NonNull Decoder decoder)
```

### getDescriptor

Added in [1.3.0](https://developer.android.com/jetpack/androidx/releases/savedstate#1.3.0)

```
public final @NonNull SerialDescriptor getDescriptor()
```

### serialize

Added in [1.3.0](https://developer.android.com/jetpack/androidx/releases/savedstate#1.3.0)

```
public final void serialize(@NonNull Encoder encoder, @NonNull T value)
```