ExperimentBucketer

```
public class ExperimentBucketer

                    
```
Pure MurmurHash3 32-bit bucketing for deterministic experiment variant assignment. Public Kotlin counterpart to iOS Sources/AppDNASDK/Config/ExperimentBucketer.swift (public enum ExperimentBucketer). Output MUST be byte-identical to the Swift version so the same user lands in the same variant on either platform.
Hosts that want to bucket their own custom experiments (outside the SDK-managed experiments config doc) can call hash32 / assignVariant directly without depending on internal SDK state.
SPEC-070-A finalization parity audit B1#4 — extract public API surface to mirror iOS. Internal SDK code paths still go through MurmurHash3 in ExperimentManager for back-compat; new callers should prefer ExperimentBucketer.hash32.

Field Summary

Fields
Modifier and Type	Field	Description
`public final static ExperimentBucketer`	`INSTANCE`

Method Summary

Modifier and Type	Method	Description
`final UInt`	`hash32(String key, UInt seed)`	Standard MurmurHash3 32-bit hash.
`final static String`	`assignVariant(String experimentId, String userId, String salt, List<ExperimentVariant> variants)`	Assign a variant based on deterministic bucketing.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - hash32
```
 final UInt hash32(String key, UInt seed)
```
    Standard MurmurHash3 32-bit hash. Identical algorithm to iOS ExperimentBucketer.hash32(_:seed:).
  - assignVariant
```
 final static String assignVariant(String experimentId, String userId, String salt, List<ExperimentVariant> variants)
```
    Assign a variant based on deterministic bucketing. Mirrors iOS ExperimentBucketer.assignVariant(experimentId:userId:salt:variants:).
    Returns the variant id, or null if the variants list is empty. Weights should be 0.0..1.0 and sum to 1.0; the last variant catches any rounding remainder.