modelcontextprotocol/java-sdk
Watch
1
0
Fork
You've already forked java-sdk
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Decouple mcp-test and mcp-spring modules from Jackson implementation (#760)

Browse source 
This is a follow-up to #742.

The `mcp-test`, `mcp-spring-webflux`, and `mcp-spring-webmvc` depended
on `mcp` module which transitively brought in Jackson 3 dependencies.
These modules are now decoupled and only depend on `mcp-core`.

The test dependencies bring in Jackson 2 for the time being.

This is a breaking change but it is required to allow easily exchanging
Jackson2 and Jackson3 modules.

Signed-off-by: Dariusz Jędrzejczyk <dariusz.jedrzejczyk@broadcom.com>
This commit is contained in:
Dariusz Jędrzejczyk 2026-01-27 15:47:28 +01:00 • committed by GitHub
commit 0a8cb1e038
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
4 changed files with 19 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

14
mcp-spring/mcp-spring-webflux/pom.xml
View file

@ -22,15 +22,10 @@
</scm>
<dependencies>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-json-jackson2</artifactId>
<version>0.18.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp</artifactId>
<artifactId>mcp-core</artifactId>
<version>0.18.0-SNAPSHOT</version>
</dependency>
@ -47,6 +42,13 @@
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-json-jackson2</artifactId>
<version>0.18.0-SNAPSHOT</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty-http</artifactId>

4
mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/client/transport/WebFluxSseClientTransportTests.java
View file

@ -10,8 +10,9 @@ import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Function;
import com.fasterxml.jackson.databind.json.JsonMapper;
import io.modelcontextprotocol.json.McpJsonMapper;
import io.modelcontextprotocol.json.jackson3.JacksonMcpJsonMapper;
import io.modelcontextprotocol.json.jackson2.JacksonMcpJsonMapper;
import io.modelcontextprotocol.spec.McpSchema;
import io.modelcontextprotocol.spec.McpSchema.JSONRPCRequest;
import org.junit.jupiter.api.AfterAll;
@ -26,7 +27,6 @@ import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.core.publisher.Sinks;
import reactor.test.StepVerifier;
import tools.jackson.databind.json.JsonMapper;
import org.springframework.http.codec.ServerSentEvent;
import org.springframework.web.reactive.function.client.WebClient;

14
mcp-spring/mcp-spring-webmvc/pom.xml
View file

@ -22,15 +22,10 @@
</scm>
<dependencies>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-json-jackson2</artifactId>
<version>0.18.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp</artifactId>
<artifactId>mcp-core</artifactId>
<version>0.18.0-SNAPSHOT</version>
</dependency>
@ -54,6 +49,13 @@
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-json-jackson2</artifactId>
<version>0.18.0-SNAPSHOT</version>
<scope>test</scope>
</dependency>
<!-- The Spring Context is required due to the reactor-netty connector being dependant on
the Spring Lifecycle, as discussed here:

2
mcp-test/pom.xml
View file

@ -23,7 +23,7 @@
<dependencies>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp</artifactId>
<artifactId>mcp-core</artifactId>
<version>0.18.0-SNAPSHOT</version>
</dependency>