refactor: merge threadpool and json-common modules by slievrly · Pull Request #8132 · apache/incubator-seata

slievrly · 2026-06-07T14:56:24Z

Eliminate two top-level modules (threadpool, json-common) by distributing their code into existing modules based on dependency constraints, and create dedicated jdk17/jdk21 modules for version-specific extensions.

threadpool refactoring:

Move SPI interface + platform impl (5 files) → common module
Move Factory + RuntimeEnvironment (2 files) → core module
Rename threadpool-loom → jdk21 (artifactId: seata-jdk21)
discovery-core/consul/etcd3/redis: use PlatformThreadPoolProvider directly to avoid core→discovery-core→core circular dependency

json-common refactoring:

Move JsonSerializer SPI + 4 impl classes + AllowlistManager → common
Move JsonUtil (depends on ConfigurationFactory) → core module
Rename json-common-jackson3 → jdk17 (artifactId: seata-jdk17)
Remove json-common-core dependency from 5 downstream modules (available transitively through core)

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Ⅰ. Describe what this PR did

Ⅱ. Does this pull request fix one issue?

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Ⅴ. Special notes for reviews

…ture Eliminate two top-level modules (threadpool, json-common) by distributing their code into existing modules based on dependency constraints, and create dedicated jdk17/jdk21 modules for version-specific extensions. threadpool refactoring: - Move SPI interface + platform impl (5 files) → common module - Move Factory + RuntimeEnvironment (2 files) → core module - Rename threadpool-loom → jdk21 (artifactId: seata-jdk21) - discovery-core/consul/etcd3/redis: use PlatformThreadPoolProvider directly to avoid core→discovery-core→core circular dependency json-common refactoring: - Move JsonSerializer SPI + 4 impl classes + AllowlistManager → common - Move JsonUtil (depends on ConfigurationFactory) → core module - Rename json-common-jackson3 → jdk17 (artifactId: seata-jdk17) - Remove json-common-core dependency from 5 downstream modules (available transitively through core) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Copilot

Pull request overview

This PR refactors the build/module layout by removing the top-level threadpool and json-common modules, relocating their code into common/core, and introducing jdk17/jdk21 extension modules to host JDK-specific SPI implementations.

Changes:

Moves thread pool SPI + default platform implementation into common, and factory/runtime selection into core; updates discovery modules to avoid circular dependencies by using PlatformThreadPoolProvider directly.
Moves JSON serializer SPI + implementations + allowlist manager into common, moves JsonUtil (configuration-aware) into core, and adds a JDK17-only Jackson3 serializer in jdk17.
Renames the loom module to jdk21 (seata-jdk21), updates Maven modules/profiles, and trims downstream POM dependencies accordingly.

Reviewed changes

Copilot reviewed 45 out of 45 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
spring/seata-spring-autoconfigure/seata-spring-autoconfigure-client/pom.xml	Drops direct `json-common-core` dependency after refactor.
server/pom.xml	Switches JDK21 extension dependency from `seata-threadpool-loom` to `seata-jdk21`.
saga/pom.xml	Removes direct `json-common-core` dependency (now expected via core/common).
rm-datasource/pom.xml	Removes direct `json-common-core` dependency.
pom.xml	Removes `threadpool`/`json-common` modules and adds JDK17/JDK21 profile-driven modules.
jdk21/src/test/java/org/apache/seata/common/thread/VirtualThreadPoolProviderTest.java	Adds JDK21 virtual-thread provider tests.
jdk21/src/main/resources/META-INF/services/org.apache.seata.common.thread.ThreadPoolProvider	Registers the JDK21 `ThreadPoolProvider` SPI implementation.
jdk21/src/main/java/org/apache/seata/common/thread/VirtualThreadPoolProvider.java	Implements virtual-thread-backed `ThreadPoolProvider` for JDK21+.
jdk21/src/main/java/org/apache/seata/common/thread/VirtualThreadPoolExecutor.java	Adds virtual-thread-backed `ThreadPoolExecutor` implementation.
jdk21/src/main/java/org/apache/seata/common/thread/VirtualThreadFactoryHelper.java	Provides a virtual `ThreadFactory` helper enforcing daemon-only semantics.
jdk21/src/main/java/org/apache/seata/common/thread/VirtualScheduledThreadPoolExecutor.java	Adds virtual-thread-backed `ScheduledThreadPoolExecutor` implementation.
jdk21/pom.xml	Introduces the `seata-jdk21` module/artifact and dependencies.
jdk17/src/test/java/org/apache/seata/common/json/Jackson3JsonSerializerTest.java	Adds tests for the Jackson3 JSON serializer SPI.
jdk17/src/test/java/org/apache/seata/common/json/Jackson3AllowlistTest.java	Adds allowlist/security behavior tests for Jackson3 auto-type handling.
jdk17/src/main/resources/META-INF/services/org.apache.seata.common.json.JsonSerializer	Registers the JDK17 Jackson3 `JsonSerializer` SPI implementation.
jdk17/src/main/java/org/apache/seata/common/json/impl/Jackson3JsonSerializer.java	Adds Jackson 3.x `JsonSerializer` implementation with allowlist validation.
jdk17/pom.xml	Introduces the `seata-jdk17` module/artifact for JDK17+ extensions.
integration-tx-api/pom.xml	Drops direct `json-common-core` dependency.
discovery/seata-discovery-redis/src/main/java/org/apache/seata/discovery/registry/redis/RedisRegistryServiceImpl.java	Uses `PlatformThreadPoolProvider` directly to avoid dependency cycles.
discovery/seata-discovery-etcd3/src/main/java/org/apache/seata/discovery/registry/etcd3/EtcdRegistryServiceImpl.java	Uses `PlatformThreadPoolProvider` directly for executor construction.
discovery/seata-discovery-core/src/main/java/org/apache/seata/discovery/registry/RegistryHeartBeats.java	Uses `PlatformThreadPoolProvider` directly for heartbeat scheduler creation.
discovery/seata-discovery-core/pom.xml	Removes dependency on removed `seata-threadpool` module.
discovery/seata-discovery-consul/src/main/java/org/apache/seata/discovery/registry/consul/ConsulRegistryServiceImpl.java	Uses `PlatformThreadPoolProvider` directly for notifier executor construction.
core/src/test/java/org/apache/seata/common/thread/ThreadPoolExecutorFactoryTest.java	Adds tests for factory behavior and runtime selection logic.
core/src/main/java/org/apache/seata/common/thread/ThreadPoolRuntimeEnvironment.java	Adds runtime resolution for platform vs virtual thread pool modes.
core/src/main/java/org/apache/seata/common/thread/ThreadPoolExecutorFactory.java	Centralizes thread pool creation and provider selection in `core`.
core/src/main/java/org/apache/seata/common/json/JsonUtil.java	Adds configuration-aware JSON utility in `core`.
core/pom.xml	Removes dependency on removed `seata-threadpool` module.
compatible/pom.xml	Drops direct `json-common-core` dependency.
common/src/main/resources/META-INF/services/org.apache.seata.common.thread.ThreadPoolProvider	Registers the default platform thread pool provider SPI.
common/src/main/resources/META-INF/services/org.apache.seata.common.json.JsonSerializer	Registers built-in JSON serializer SPI implementations.
common/src/main/java/org/apache/seata/common/thread/ThreadPoolType.java	Adds enum for supported thread pool modes.
common/src/main/java/org/apache/seata/common/thread/ThreadPoolProviderOrders.java	Adds shared order constants for providers.
common/src/main/java/org/apache/seata/common/thread/ThreadPoolProvider.java	Introduces SPI interface for thread pool creation.
common/src/main/java/org/apache/seata/common/thread/PlatformThreadPoolProvider.java	Adds default platform-thread provider implementation.
common/src/main/java/org/apache/seata/common/thread/PlatformThreadPoolExecutor.java	Adds platform-thread-backed executor implementation wrapper.
common/src/main/java/org/apache/seata/common/json/JsonSerializerFactory.java	Adds central serializer factory with Jackson3 fallback behavior.
common/src/main/java/org/apache/seata/common/json/JsonSerializer.java	Adds unified JSON serializer SPI interface.
common/src/main/java/org/apache/seata/common/json/JsonAllowlistManager.java	Adds allowlist manager used by serializers to enforce safe polymorphic deserialization.
common/src/main/java/org/apache/seata/common/json/impl/JacksonJsonSerializer.java	Moves/hosts Jackson serializer implementation under `common`.
common/src/main/java/org/apache/seata/common/json/impl/GsonJsonSerializer.java	Moves/hosts Gson serializer implementation under `common`.
common/src/main/java/org/apache/seata/common/json/impl/FastjsonJsonSerializer.java	Moves/hosts Fastjson serializer implementation under `common`.
common/src/main/java/org/apache/seata/common/json/impl/Fastjson2JsonSerializer.java	Moves/hosts Fastjson2 serializer implementation under `common`.
common/pom.xml	Adds provided JSON library dependencies required by moved serializers.
bom/pom.xml	Replaces old threadpool artifacts with `seata-jdk21` in dependency management.

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codecov · 2026-06-07T15:24:32Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.20%. Comparing base (cb9c092) to head (ddd5458).
⚠️ Report is 2 commits behind head on 2.x.

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x    #8132      +/-   ##
============================================
- Coverage     72.69%   72.20%   -0.50%     
  Complexity      879      879              
============================================
  Files          1327     1327              
  Lines         50852    50855       +3     
  Branches       6071     6071              
============================================
- Hits          36969    36718     -251     
- Misses        10888    11148     +260     
+ Partials       2995     2989       -6

Files with missing lines	Coverage Δ
...apache/seata/common/json/JsonAllowlistManager.java	`0.00% <ø> (ø)`
...pache/seata/common/json/JsonSerializerFactory.java	`50.00% <ø> (ø)`
...eata/common/json/impl/Fastjson2JsonSerializer.java	`12.06% <ø> (ø)`
...seata/common/json/impl/FastjsonJsonSerializer.java	`25.86% <ø> (ø)`
...che/seata/common/json/impl/GsonJsonSerializer.java	`0.00% <ø> (ø)`
.../seata/common/json/impl/JacksonJsonSerializer.java	`44.30% <ø> (ø)`
...eata/common/thread/PlatformThreadPoolExecutor.java	`100.00% <ø> (ø)`
...eata/common/thread/PlatformThreadPoolProvider.java	`100.00% <ø> (ø)`
...org/apache/seata/common/thread/ThreadPoolType.java	`71.42% <ø> (ø)`
...in/java/org/apache/seata/common/json/JsonUtil.java	`57.89% <ø> (ø)`
... and 15 more

... and 9 files with indirect coverage changes

🚀 New features to boost your workflow:

❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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- Fix hardcoded module name in warn log: "seata-threadpool-virtual" → "seata-jdk21" to match the renamed artifact - Add seata-jdk17 to bom/pom.xml dependency management so downstream builds using seata-bom can consume the Jackson3 extension Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

@deprecated

…modules - Rename directories jdk17 → spi-jdk17, jdk21 → spi-jdk21 - Rename artifactIds seata-jdk17 → seata-spi-jdk17, seata-jdk21 → seata-spi-jdk21 - Delete old modules: threadpool/, threadpool-loom/, json-common/ - Fix @deprecated javadoc references: "json-common-core module" → "seata-common module" - Update warn log module name to seata-spi-jdk21 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Copilot

Pull request overview

Copilot reviewed 44 out of 71 changed files in this pull request and generated 2 comments.

Comments suppressed due to low confidence (1)

spi-jdk17/pom.xml:32

PR description says the modules were renamed to artifacts seata-jdk17/seata-jdk21, but the actual published artifactId here is seata-spi-jdk17 (and seata-spi-jdk21 elsewhere). Please align the PR description with the implemented artifactIds, or rename the artifacts consistently if seata-jdk17/seata-jdk21 is the intended public API.

 /**
- * @deprecated use {@link org.apache.seata.common.json.JsonUtil} in json-common-core module instead.
+ * @deprecated use {@link org.apache.seata.common.json.JsonUtil} in seata-common module instead.
 */


+    private static final ScheduledExecutorService HEARTBEAT_SCHEDULED = new PlatformThreadPoolProvider()
+            .newScheduledThreadPoolExecutor("seata-discovery-heartbeat", 1, true, new ThreadPoolExecutor.AbortPolicy());



Copilot AI review requested due to automatic review settings June 7, 2026 14:56

Copilot started reviewing on behalf of slievrly June 7, 2026 14:56 View session

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Comment thread core/src/main/java/org/apache/seata/common/thread/ThreadPoolExecutorFactory.java Outdated

Comment thread bom/pom.xml

slievrly and others added 3 commits June 7, 2026 23:29

style: apply spotless formatting

e4d479a

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

funky-eyes added this to the 2.8.0 milestone Jun 23, 2026

funky-eyes added the type: refactor refactor module label Jun 23, 2026

Merge branch '2.x' into 2.x_26_06_06

ddd5458

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refactor: merge threadpool and json-common modules#8132

refactor: merge threadpool and json-common modules#8132
slievrly wants to merge 5 commits into
apache:2.xfrom
slievrly:2.x_26_06_06

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		private static final ScheduledExecutorService HEARTBEAT_SCHEDULED = new PlatformThreadPoolProvider()
		.newScheduledThreadPoolExecutor("seata-discovery-heartbeat", 1, true, new ThreadPoolExecutor.AbortPolicy());

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Ⅰ. Describe what this PR did

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