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Merged
merged 1 commit into from
Oct 30, 2025
+13 −14
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chore: standardize client/server implementation names and version #642

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4 changes: 2 additions & 2 deletions mcp-core/src/main/java/io/modelcontextprotocol/client/McpClient.java
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Original file line number Diff line number Diff line change
Expand Up @@ -167,7 +167,7 @@ class SyncSpec {

private ClientCapabilities capabilities;

private Implementation clientInfo = new Implementation("Java SDK MCP Client", "1.0.0");
private Implementation clientInfo = new Implementation("Java SDK MCP Client", "0.15.0");

private final Map<String, Root> roots = new HashMap<>();

Expand Down Expand Up @@ -507,7 +507,7 @@ class AsyncSpec {

private ClientCapabilities capabilities;

private Implementation clientInfo = new Implementation("Spring AI MCP Client", "0.3.1");
private Implementation clientInfo = new Implementation("Java SDK MCP Client", "0.15.0");

private final Map<String, Root> roots = new HashMap<>();

Expand Down
3 changes: 1 addition & 2 deletions mcp-core/src/main/java/io/modelcontextprotocol/server/McpServer.java
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Expand Up @@ -11,7 +11,6 @@
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;

Expand Down Expand Up @@ -134,7 +133,7 @@
*/
public interface McpServer {

McpSchema.Implementation DEFAULT_SERVER_INFO = new McpSchema.Implementation("mcp-server", "1.0.0");
McpSchema.Implementation DEFAULT_SERVER_INFO = new McpSchema.Implementation("Java SDK MCP Server", "0.15.0");

/**
* Starts building a synchronous MCP server that provides blocking operations.
Expand Down
4 changes: 2 additions & 2 deletions ...textprotocol/client/transport/HttpClientStreamableHttpTransportEmptyJsonResponseTest.java
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Expand Up @@ -78,15 +78,15 @@ void testNotificationInitialized() throws URISyntaxException {

var initializeRequest = new McpSchema.InitializeRequest(ProtocolVersions.MCP_2025_03_26,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Spring AI MCP Client", "0.3.1"));
new McpSchema.Implementation("MCP Client", "0.3.1"));
var testMessage = new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE,
"test-id", initializeRequest);

StepVerifier.create(transport.sendMessage(testMessage)).verifyComplete();

// Verify the customizer was called
verify(mockRequestCustomizer, atLeastOnce()).customize(any(), eq("POST"), eq(uri), eq(
"{\"jsonrpc\":\"2.0\",\"method\":\"initialize\",\"id\":\"test-id\",\"params\":{\"protocolVersion\":\"2025-03-26\",\"capabilities\":{\"roots\":{\"listChanged\":true}},\"clientInfo\":{\"name\":\"Spring AI MCP Client\",\"version\":\"0.3.1\"}}}"),
"{\"jsonrpc\":\"2.0\",\"method\":\"initialize\",\"id\":\"test-id\",\"params\":{\"protocolVersion\":\"2025-03-26\",\"capabilities\":{\"roots\":{\"listChanged\":true}},\"clientInfo\":{\"name\":\"MCP Client\",\"version\":\"0.3.1\"}}}"),
any());

}
Expand Down
12 changes: 6 additions & 6 deletions .../java/io/modelcontextprotocol/client/transport/HttpClientStreamableHttpTransportTest.java
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Expand Up @@ -80,7 +80,7 @@ void testRequestCustomizer() throws URISyntaxException {
// Send test message
var initializeRequest = new McpSchema.InitializeRequest(McpSchema.LATEST_PROTOCOL_VERSION,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Spring AI MCP Client", "0.3.1"));
new McpSchema.Implementation("MCP Client", "0.3.1"));
var testMessage = new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE,
"test-id", initializeRequest);

Expand All @@ -90,7 +90,7 @@ void testRequestCustomizer() throws URISyntaxException {

// Verify the customizer was called
verify(mockRequestCustomizer, atLeastOnce()).customize(any(), eq("POST"), eq(uri), eq(
"{\"jsonrpc\":\"2.0\",\"method\":\"initialize\",\"id\":\"test-id\",\"params\":{\"protocolVersion\":\"2025-06-18\",\"capabilities\":{\"roots\":{\"listChanged\":true}},\"clientInfo\":{\"name\":\"Spring AI MCP Client\",\"version\":\"0.3.1\"}}}"),
"{\"jsonrpc\":\"2.0\",\"method\":\"initialize\",\"id\":\"test-id\",\"params\":{\"protocolVersion\":\"2025-06-18\",\"capabilities\":{\"roots\":{\"listChanged\":true}},\"clientInfo\":{\"name\":\"MCP Client\",\"version\":\"0.3.1\"}}}"),
eq(context));
});
}
Expand All @@ -110,7 +110,7 @@ void testAsyncRequestCustomizer() throws URISyntaxException {
// Send test message
var initializeRequest = new McpSchema.InitializeRequest(McpSchema.LATEST_PROTOCOL_VERSION,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Spring AI MCP Client", "0.3.1"));
new McpSchema.Implementation("MCP Client", "0.3.1"));
var testMessage = new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE,
"test-id", initializeRequest);

Expand All @@ -120,7 +120,7 @@ void testAsyncRequestCustomizer() throws URISyntaxException {

// Verify the customizer was called
verify(mockRequestCustomizer, atLeastOnce()).customize(any(), eq("POST"), eq(uri), eq(
"{\"jsonrpc\":\"2.0\",\"method\":\"initialize\",\"id\":\"test-id\",\"params\":{\"protocolVersion\":\"2025-06-18\",\"capabilities\":{\"roots\":{\"listChanged\":true}},\"clientInfo\":{\"name\":\"Spring AI MCP Client\",\"version\":\"0.3.1\"}}}"),
"{\"jsonrpc\":\"2.0\",\"method\":\"initialize\",\"id\":\"test-id\",\"params\":{\"protocolVersion\":\"2025-06-18\",\"capabilities\":{\"roots\":{\"listChanged\":true}},\"clientInfo\":{\"name\":\"MCP Client\",\"version\":\"0.3.1\"}}}"),
eq(context));
});
}
Expand All @@ -133,7 +133,7 @@ void testCloseUninitialized() {

var initializeRequest = new McpSchema.InitializeRequest(McpSchema.LATEST_PROTOCOL_VERSION,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Spring AI MCP Client", "0.3.1"));
new McpSchema.Implementation("MCP Client", "0.3.1"));
var testMessage = new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE,
"test-id", initializeRequest);

Expand All @@ -148,7 +148,7 @@ void testCloseInitialized() {

var initializeRequest = new McpSchema.InitializeRequest(McpSchema.LATEST_PROTOCOL_VERSION,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Spring AI MCP Client", "0.3.1"));
new McpSchema.Implementation("MCP Client", "0.3.1"));
var testMessage = new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE,
"test-id", initializeRequest);

Expand Down
4 changes: 2 additions & 2 deletions ...t/java/io/modelcontextprotocol/client/transport/WebClientStreamableHttpTransportTest.java
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Expand Up @@ -47,7 +47,7 @@ void testCloseUninitialized() {

var initializeRequest = new McpSchema.InitializeRequest(McpSchema.LATEST_PROTOCOL_VERSION,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Spring AI MCP Client", "0.3.1"));
new McpSchema.Implementation("MCP Client", "0.3.1"));
var testMessage = new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE,
"test-id", initializeRequest);

Expand All @@ -62,7 +62,7 @@ void testCloseInitialized() {

var initializeRequest = new McpSchema.InitializeRequest(McpSchema.LATEST_PROTOCOL_VERSION,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Spring AI MCP Client", "0.3.1"));
new McpSchema.Implementation("MCP Client", "0.3.1"));
var testMessage = new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE,
"test-id", initializeRequest);

Expand Down