Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, we recommend utilizing android-latest-release instead of aosp-main. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.

ModuleSplitter

public class ModuleSplitter
extends Object

java.lang.Object
↳	com.android.tradefed.testtype.suite.ModuleSplitter

Helper to split a list of modules represented by IConfiguration into a list of execution units represented by ModuleDefinition.

Each configuration may generate 1 or more ModuleDefinition depending on its options and test types:

A non-shardable IConfiguration will generate a single ModuleDefinition.
A shardable IConfiguration will generate a number of ModuleDefinition linked to the IRemoteTest properties:
- A non - IShardableTest will generate a single ModuleDefinition.
- A IShardableTest generates one ModuleDefinition per tests returned by IShardableTest.split().

Summary

Public constructors
`ModuleSplitter()`

Public methods
`static List<ModuleDefinition>`	`splitConfiguration(TestInformation testInfo, LinkedHashMap<String, IConfiguration> runConfig, Map<String, List<ITargetPreparer>> suitePreparersPerDevice, int shardCount, boolean dynamicModule, boolean intraModuleSharding)` Create a List of executable unit `ModuleDefinition`s based on the map of configuration that was loaded.

Public constructors

ModuleSplitter

public ModuleSplitter ()

Public methods

splitConfiguration

public static List<ModuleDefinition> splitConfiguration (TestInformation testInfo, 
                LinkedHashMap<String, IConfiguration> runConfig, 
                Map<String, List<ITargetPreparer>> suitePreparersPerDevice, 
                int shardCount, 
                boolean dynamicModule, 
                boolean intraModuleSharding)

Create a List of executable unit ModuleDefinitions based on the map of configuration that was loaded.

Parameters
`testInfo`	`TestInformation`: the current `TestInformation` to proceed with sharding.
`runConfig`	`LinkedHashMap`: `LinkedHashMap` loaded from `ITestSuite.loadTests()`.
`suitePreparersPerDevice`	`Map`: map of suite level preparers per test device.
`shardCount`	`int`: a shard count hint to help with sharding.
`dynamicModule`	`boolean`: Whether or not module can be shared in pool or must be independent (strict sharding).
`intraModuleSharding`	`boolean`: Whether or not to shard within the modules.

Returns
`List<ModuleDefinition>`	List of `ModuleDefinition`