Add mcp-sdk-plain module: MCP server on the plain Java SDK 2.1.0 over stdio and Streamable HTTP, fat jar, wire transcripts and a Spring AI client

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b5oh78z7gcH6QkxafF
2026-11-08 18:28:07 +00:00
parent 7c20ea1370
commit 58eaf4c2e1
29 changed files with 864 additions and 0 deletions
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>com.ankurm.agents</groupId>
+    <artifactId>java-ai-agents</artifactId>
+    <version>1.0.0</version>
+  </parent>
+
+  <artifactId>mcp-sdk-plain</artifactId>
+  <name>MCP server with the plain Java SDK: stdio and Streamable HTTP</name>
+
+  <dependencies>
+    <!-- Pom-only aggregator: pulls mcp-core and mcp-json-jackson3. No Spring anywhere. -->
+    <dependency>
+      <groupId>io.modelcontextprotocol.sdk</groupId>
+      <artifactId>mcp</artifactId>
+      <version>${mcp.sdk.version}</version>
+    </dependency>
+    <!-- mcp-core declares jakarta.servlet-api as "provided", so HTTP needs a servlet container of your own. -->
+    <dependency>
+      <groupId>org.eclipse.jetty.ee11</groupId>
+      <artifactId>jetty-ee11-servlet</artifactId>
+      <version>${jetty.version}</version>
+    </dependency>
+    <!-- slf4j-simple logs to System.err, which is the only safe place on a stdio server. -->
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>${slf4j.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <finalName>mcp-sdk-plain</finalName>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-shade-plugin</artifactId>
+        <version>3.6.1</version>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals><goal>shade</goal></goals>
+            <configuration>
+              <createDependencyReducedPom>false</createDependencyReducedPom>
+              <transformers>
+                <!-- Merges META-INF/services files. Without it the SDK cannot find its JSON mapper. -->
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                  <mainClass>com.ankurm.mcpplain.Main</mainClass>
+                  <manifestEntries><Multi-Release>true</Multi-Release></manifestEntries>
+                </transformer>
+              </transformers>
+              <filters>
+                <filter>
+                  <artifact>*:*</artifact>
+                  <excludes>
+                    <exclude>META-INF/*.SF</exclude><exclude>META-INF/*.DSA</exclude><exclude>META-INF/*.RSA</exclude>
+                    <exclude>module-info.class</exclude><exclude>META-INF/versions/*/module-info.class</exclude>
+                  </excludes>
+                </filter>
+              </filters>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>