fix: improve streamable HTTP session reinitialization (#459)

Implements the MCP spec guidelines for streamable HTTP (re)initialization:
- Server MAY terminate session and MUST respond with HTTP 404 for terminated session IDs
- Client MUST start new session when receiving HTTP 404 for requests with session ID

Changes:
- Replace generic McpError with McpTransportException for transport-layer errors
- Only throw McpTransportSessionNotFoundException when session ID is present in request
  (per spec: 404 with session ID means session terminated, without means general error)
- Enhance error messages with more context (status codes, response events)
- Use RuntimeException for non-transport specific SSE endpoint failures
- Ensure consistent error handling across HTTP client transports

- Improve error handling with standard Java exceptions.
  Replace generic McpError with appropriate standard exceptions:
  - Use IllegalArgumentException for invalid input parameters
  - Use IllegalStateException for state-related issues
  - Use RuntimeException wrapper for initialization failures
  - Use McpError.builder() with proper error codes for protocol errors

Fixes #459

Signed-off-by: Christian Tzolov <christian.tzolov@broadcom.com>
This commit is contained in:
Christian Tzolov 2025-08-07 18:35:50 +01:00
commit ea50838d06
9 changed files with 955 additions and 90 deletions

View file

@ -31,6 +31,7 @@ import io.modelcontextprotocol.spec.HttpHeaders;
import io.modelcontextprotocol.spec.McpClientTransport;
import io.modelcontextprotocol.spec.McpError;
import io.modelcontextprotocol.spec.McpSchema;
import io.modelcontextprotocol.spec.McpTransportException;
import io.modelcontextprotocol.spec.McpTransportSession;
import io.modelcontextprotocol.spec.McpTransportSessionNotFoundException;
import io.modelcontextprotocol.spec.McpTransportStream;
@ -70,6 +71,8 @@ import reactor.util.function.Tuples;
*/
public class WebClientStreamableHttpTransport implements McpClientTransport {
private static final String MISSING_SESSION_ID = "[missing_session_id]";
private static final Logger logger = LoggerFactory.getLogger(WebClientStreamableHttpTransport.class);
private static final String MCP_PROTOCOL_VERSION = ProtocolVersions.MCP_2025_03_26;
@ -221,8 +224,13 @@ public class WebClientStreamableHttpTransport implements McpClientTransport {
return Flux.empty();
}
else if (isNotFound(response)) {
String sessionIdRepresentation = sessionIdOrPlaceholder(transportSession);
return mcpSessionNotFoundError(sessionIdRepresentation);
if (transportSession.sessionId().isPresent()) {
String sessionIdRepresentation = sessionIdOrPlaceholder(transportSession);
return mcpSessionNotFoundError(sessionIdRepresentation);
}
else {
return this.extractError(response, MISSING_SESSION_ID);
}
}
else {
return response.<McpSchema.JSONRPCMessage>createError().doOnError(e -> {
@ -318,10 +326,10 @@ public class WebClientStreamableHttpTransport implements McpClientTransport {
}
}
else {
if (isNotFound(response)) {
if (isNotFound(response) && !sessionRepresentation.equals(MISSING_SESSION_ID)) {
return mcpSessionNotFoundError(sessionRepresentation);
}
return extractError(response, sessionRepresentation);
return this.extractError(response, sessionRepresentation);
}
})
.flatMap(jsonRpcMessage -> this.handler.get().apply(Mono.just(jsonRpcMessage)))
@ -362,10 +370,10 @@ public class WebClientStreamableHttpTransport implements McpClientTransport {
McpSchema.JSONRPCResponse.class);
jsonRpcError = jsonRpcResponse.error();
toPropagate = jsonRpcError != null ? new McpError(jsonRpcError)
: new McpError("Can't parse the jsonResponse " + jsonRpcResponse);
: new McpTransportException("Can't parse the jsonResponse " + jsonRpcResponse);
}
catch (IOException ex) {
toPropagate = new RuntimeException("Sending request failed", e);
toPropagate = new McpTransportException("Sending request failed, " + e.getMessage(), e);
logger.debug("Received content together with {} HTTP code response: {}", response.statusCode(), body);
}
@ -374,7 +382,11 @@ public class WebClientStreamableHttpTransport implements McpClientTransport {
// invalidate the session
// https://github.com/modelcontextprotocol/typescript-sdk/issues/389
if (responseException.getStatusCode().isSameCodeAs(HttpStatus.BAD_REQUEST)) {
return Mono.error(new McpTransportSessionNotFoundException(sessionRepresentation, toPropagate));
if (!sessionRepresentation.equals(MISSING_SESSION_ID)) {
return Mono.error(new McpTransportSessionNotFoundException(sessionRepresentation, toPropagate));
}
return Mono.error(new McpTransportException("Received 400 BAD REQUEST for session "
+ sessionRepresentation + ". " + toPropagate.getMessage(), toPropagate));
}
return Mono.error(toPropagate);
}).flux();
@ -403,7 +415,7 @@ public class WebClientStreamableHttpTransport implements McpClientTransport {
}
private static String sessionIdOrPlaceholder(McpTransportSession<?> transportSession) {
return transportSession.sessionId().orElse("[missing_session_id]");
return transportSession.sessionId().orElse(MISSING_SESSION_ID);
}
private Flux<McpSchema.JSONRPCMessage> directResponseFlux(McpSchema.JSONRPCMessage sentMessage,
@ -421,8 +433,7 @@ public class WebClientStreamableHttpTransport implements McpClientTransport {
}
}
catch (IOException e) {
// TODO: this should be a McpTransportError
s.error(e);
s.error(new McpTransportException(e));
}
}).flatMapIterable(Function.identity());
}
@ -449,7 +460,7 @@ public class WebClientStreamableHttpTransport implements McpClientTransport {
return Tuples.of(Optional.ofNullable(event.id()), List.of(message));
}
catch (IOException ioException) {
throw new McpError("Error parsing JSON-RPC message: " + event.data());
throw new McpTransportException("Error parsing JSON-RPC message: " + event.data(), ioException);
}
}
else {

View file

@ -14,7 +14,6 @@ import com.fasterxml.jackson.databind.ObjectMapper;
import io.modelcontextprotocol.spec.HttpHeaders;
import io.modelcontextprotocol.spec.McpClientTransport;
import io.modelcontextprotocol.spec.McpError;
import io.modelcontextprotocol.spec.McpSchema;
import io.modelcontextprotocol.spec.McpSchema.JSONRPCMessage;
import io.modelcontextprotocol.spec.ProtocolVersions;
@ -197,8 +196,6 @@ public class WebFluxSseClientTransport implements McpClientTransport {
* @param handler a function that processes incoming JSON-RPC messages and returns
* responses
* @return a Mono that completes when the connection is fully established
* @throws McpError if there's an error processing SSE events or if an unrecognized
* event type is received
*/
@Override
public Mono<Void> connect(Function<Mono<JSONRPCMessage>, Mono<JSONRPCMessage>> handler) {
@ -215,7 +212,7 @@ public class WebFluxSseClientTransport implements McpClientTransport {
else {
// TODO: clarify with the spec if multiple events can be
// received
s.error(new McpError("Failed to handle SSE endpoint event"));
s.error(new RuntimeException("Failed to handle SSE endpoint event"));
}
}
else if (MESSAGE_EVENT_TYPE.equals(event.event())) {

View file

@ -8,6 +8,7 @@ import java.time.Duration;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Timeout;
import org.springframework.http.server.reactive.HttpHandler;
import org.springframework.http.server.reactive.ReactorHttpHandlerAdapter;
import org.springframework.web.reactive.function.client.WebClient;
@ -26,6 +27,7 @@ import io.modelcontextprotocol.server.transport.WebFluxSseServerTransportProvide
import reactor.netty.DisposableServer;
import reactor.netty.http.server.HttpServer;
@Timeout(15)
class WebFluxSseIntegrationTests extends AbstractMcpClientServerIntegrationTests {
private static final int PORT = TestUtil.findAvailablePort();

View file

@ -8,6 +8,7 @@ import java.time.Duration;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Timeout;
import org.springframework.http.server.reactive.HttpHandler;
import org.springframework.http.server.reactive.ReactorHttpHandlerAdapter;
import org.springframework.web.reactive.function.client.WebClient;
@ -26,6 +27,7 @@ import io.modelcontextprotocol.server.transport.WebFluxStatelessServerTransport;
import reactor.netty.DisposableServer;
import reactor.netty.http.server.HttpServer;
@Timeout(15)
class WebFluxStatelessIntegrationTests extends AbstractStatelessIntegrationTests {
private static final int PORT = TestUtil.findAvailablePort();

View file

@ -8,6 +8,7 @@ import java.time.Duration;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Timeout;
import org.springframework.http.server.reactive.HttpHandler;
import org.springframework.http.server.reactive.ReactorHttpHandlerAdapter;
import org.springframework.web.reactive.function.client.WebClient;
@ -26,6 +27,7 @@ import io.modelcontextprotocol.server.transport.WebFluxStreamableServerTransport
import reactor.netty.DisposableServer;
import reactor.netty.http.server.HttpServer;
@Timeout(15)
class WebFluxStreamableIntegrationTests extends AbstractMcpClientServerIntegrationTests {
private static final int PORT = TestUtil.findAvailablePort();

View file

@ -0,0 +1,404 @@
/*
* Copyright 2025-2025 the original author or authors.
*/
package io.modelcontextprotocol.client.transport;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.time.Duration;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.Timeout;
import org.springframework.web.reactive.function.client.WebClient;
import com.sun.net.httpserver.HttpServer;
import io.modelcontextprotocol.server.TestUtil;
import io.modelcontextprotocol.spec.HttpHeaders;
import io.modelcontextprotocol.spec.McpClientTransport;
import io.modelcontextprotocol.spec.McpSchema;
import io.modelcontextprotocol.spec.McpTransportException;
import io.modelcontextprotocol.spec.McpTransportSessionNotFoundException;
import io.modelcontextprotocol.spec.ProtocolVersions;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
/**
* Tests for error handling in WebClientStreamableHttpTransport. Addresses concurrency
* issues with proper Reactor patterns.
*
* @author Christian Tzolov
*/
@Timeout(15)
public class WebClientStreamableHttpTransportErrorHandlingTest {
private static final int PORT = TestUtil.findAvailablePort();
private static final String HOST = "http://localhost:" + PORT;
private HttpServer server;
private AtomicReference<Integer> serverResponseStatus = new AtomicReference<>(200);
private AtomicReference<String> currentServerSessionId = new AtomicReference<>(null);
private AtomicReference<String> lastReceivedSessionId = new AtomicReference<>(null);
private McpClientTransport transport;
// Initialize latches for proper request synchronization
CountDownLatch firstRequestLatch;
CountDownLatch secondRequestLatch;
CountDownLatch getRequestLatch;
@BeforeEach
void startServer() throws IOException {
// Initialize latches for proper synchronization
firstRequestLatch = new CountDownLatch(1);
secondRequestLatch = new CountDownLatch(1);
getRequestLatch = new CountDownLatch(1);
server = HttpServer.create(new InetSocketAddress(PORT), 0);
// Configure the /mcp endpoint with dynamic response
server.createContext("/mcp", exchange -> {
String method = exchange.getRequestMethod();
if ("GET".equals(method)) {
// This is the SSE connection attempt after session establishment
getRequestLatch.countDown();
// Return 405 Method Not Allowed to indicate SSE not supported
exchange.sendResponseHeaders(405, 0);
exchange.close();
return;
}
String requestSessionId = exchange.getRequestHeaders().getFirst(HttpHeaders.MCP_SESSION_ID);
lastReceivedSessionId.set(requestSessionId);
int status = serverResponseStatus.get();
// Track which request this is
if (firstRequestLatch.getCount() > 0) {
// // First request - should have no session ID
firstRequestLatch.countDown();
}
else if (secondRequestLatch.getCount() > 0) {
// Second request - should have session ID
secondRequestLatch.countDown();
}
exchange.getResponseHeaders().set("Content-Type", "application/json");
// Don't include session ID in 404 and 400 responses - the implementation
// checks if the transport has a session stored locally
String responseSessionId = currentServerSessionId.get();
if (responseSessionId != null && status == 200) {
exchange.getResponseHeaders().set(HttpHeaders.MCP_SESSION_ID, responseSessionId);
}
if (status == 200) {
String response = "{\"jsonrpc\":\"2.0\",\"result\":{},\"id\":\"test-id\"}";
exchange.sendResponseHeaders(200, response.length());
exchange.getResponseBody().write(response.getBytes());
}
else {
exchange.sendResponseHeaders(status, 0);
}
exchange.close();
});
server.setExecutor(null);
server.start();
transport = WebClientStreamableHttpTransport.builder(WebClient.builder().baseUrl(HOST)).build();
}
@AfterEach
void stopServer() {
if (server != null) {
server.stop(0);
}
StepVerifier.create(transport.closeGracefully()).verifyComplete();
}
/**
* Test that 404 response WITHOUT session ID throws McpTransportException (not
* SessionNotFoundException)
*/
@Test
void test404WithoutSessionId() {
serverResponseStatus.set(404);
currentServerSessionId.set(null); // No session ID in response
var testMessage = createTestMessage();
StepVerifier.create(transport.sendMessage(testMessage))
.expectErrorMatches(throwable -> throwable instanceof McpTransportException
&& throwable.getMessage().contains("Not Found") && throwable.getMessage().contains("404")
&& !(throwable instanceof McpTransportSessionNotFoundException))
.verify(Duration.ofSeconds(5));
}
/**
* Test that 404 response WITH session ID throws McpTransportSessionNotFoundException
* Fixed version using proper async coordination
*/
@Test
void test404WithSessionId() throws InterruptedException {
// First establish a session
serverResponseStatus.set(200);
currentServerSessionId.set("test-session-123");
// Set up exception handler to verify session invalidation
@SuppressWarnings("unchecked")
Consumer<Throwable> exceptionHandler = mock(Consumer.class);
transport.setExceptionHandler(exceptionHandler);
// Connect with handler
StepVerifier.create(transport.connect(msg -> msg)).verifyComplete();
// Send initial message to establish session
var testMessage = createTestMessage();
// Send first message to establish session
StepVerifier.create(transport.sendMessage(testMessage)).verifyComplete();
// Wait for first request to complete
assertThat(firstRequestLatch.await(5, TimeUnit.SECONDS)).isTrue();
// Wait for the GET request (SSE connection attempt) to complete
assertThat(getRequestLatch.await(5, TimeUnit.SECONDS)).isTrue();
// Now return 404 for next request
serverResponseStatus.set(404);
// Use delaySubscription to ensure session is fully processed before next
// request
StepVerifier.create(Mono.delay(Duration.ofMillis(200)).then(transport.sendMessage(testMessage)))
.expectError(McpTransportSessionNotFoundException.class)
.verify(Duration.ofSeconds(5));
// Wait for second request to be made
assertThat(secondRequestLatch.await(5, TimeUnit.SECONDS)).isTrue();
// Verify the second request included the session ID
assertThat(lastReceivedSessionId.get()).isEqualTo("test-session-123");
// Verify exception handler was called with SessionNotFoundException using
// timeout
verify(exceptionHandler, timeout(5000)).accept(any(McpTransportSessionNotFoundException.class));
}
/**
* Test that 400 response WITHOUT session ID throws McpTransportException (not
* SessionNotFoundException)
*/
@Test
void test400WithoutSessionId() {
serverResponseStatus.set(400);
currentServerSessionId.set(null); // No session ID
var testMessage = createTestMessage();
StepVerifier.create(transport.sendMessage(testMessage))
.expectErrorMatches(throwable -> throwable instanceof McpTransportException
&& throwable.getMessage().contains("Bad Request") && throwable.getMessage().contains("400")
&& !(throwable instanceof McpTransportSessionNotFoundException))
.verify(Duration.ofSeconds(5));
}
/**
* Test that 400 response WITH session ID throws McpTransportSessionNotFoundException
* Fixed version using proper async coordination
*/
@Test
void test400WithSessionId() throws InterruptedException {
// First establish a session
serverResponseStatus.set(200);
currentServerSessionId.set("test-session-456");
// Set up exception handler
@SuppressWarnings("unchecked")
Consumer<Throwable> exceptionHandler = mock(Consumer.class);
transport.setExceptionHandler(exceptionHandler);
// Connect with handler
StepVerifier.create(transport.connect(msg -> msg)).verifyComplete();
// Send initial message to establish session
var testMessage = createTestMessage();
// Send first message to establish session
StepVerifier.create(transport.sendMessage(testMessage)).verifyComplete();
// Wait for first request to complete
boolean firstCompleted = firstRequestLatch.await(5, TimeUnit.SECONDS);
assertThat(firstCompleted).isTrue();
// Wait for the GET request (SSE connection attempt) to complete
boolean getCompleted = getRequestLatch.await(5, TimeUnit.SECONDS);
assertThat(getCompleted).isTrue();
// Now return 400 for next request (simulating unknown session ID)
serverResponseStatus.set(400);
// Use delaySubscription to ensure session is fully processed before next
// request
StepVerifier.create(Mono.delay(Duration.ofMillis(200)).then(transport.sendMessage(testMessage)))
.expectError(McpTransportSessionNotFoundException.class)
.verify(Duration.ofSeconds(5));
// Wait for second request to be made
boolean secondCompleted = secondRequestLatch.await(5, TimeUnit.SECONDS);
assertThat(secondCompleted).isTrue();
// Verify the second request included the session ID
assertThat(lastReceivedSessionId.get()).isEqualTo("test-session-456");
// Verify exception handler was called with timeout
verify(exceptionHandler, timeout(5000)).accept(any(McpTransportSessionNotFoundException.class));
}
/**
* Test session recovery after SessionNotFoundException Fixed version using reactive
* patterns and proper synchronization
*/
@Test
void testSessionRecoveryAfter404() {
// First establish a session
serverResponseStatus.set(200);
currentServerSessionId.set("session-1");
// Send initial message to establish session
var testMessage = createTestMessage();
// Use Mono.defer to ensure proper sequencing
Mono<Void> establishSession = transport.sendMessage(testMessage).then(Mono.defer(() -> {
// Simulate session loss - return 404
serverResponseStatus.set(404);
return transport.sendMessage(testMessage).onErrorResume(McpTransportSessionNotFoundException.class, e -> {
// Expected error, continue with recovery
return Mono.empty();
});
})).then(Mono.defer(() -> {
// Now server is back with new session
serverResponseStatus.set(200);
currentServerSessionId.set("session-2");
lastReceivedSessionId.set(null); // Reset to verify new session
// Should be able to establish new session
return transport.sendMessage(testMessage);
})).then(Mono.defer(() -> {
// Verify no session ID was sent (since old session was invalidated)
assertThat(lastReceivedSessionId.get()).isNull();
// Next request should use the new session ID
return transport.sendMessage(testMessage);
})).doOnSuccess(v -> {
// Session ID should now be sent with requests
assertThat(lastReceivedSessionId.get()).isEqualTo("session-2");
});
StepVerifier.create(establishSession).verifyComplete();
}
/**
* Test that reconnect (GET request) also properly handles 404/400 errors Fixed
* version with proper async handling
*/
@Test
void testReconnectErrorHandling() throws InterruptedException {
// Initialize latch for SSE connection
CountDownLatch sseConnectionLatch = new CountDownLatch(1);
// Set up SSE endpoint for GET requests
server.createContext("/mcp-sse", exchange -> {
String method = exchange.getRequestMethod();
String requestSessionId = exchange.getRequestHeaders().getFirst(HttpHeaders.MCP_SESSION_ID);
if ("GET".equals(method)) {
sseConnectionLatch.countDown();
int status = serverResponseStatus.get();
if (status == 404 && requestSessionId != null) {
// 404 with session ID - should trigger SessionNotFoundException
exchange.sendResponseHeaders(404, 0);
}
else if (status == 404) {
// 404 without session ID - should trigger McpTransportException
exchange.sendResponseHeaders(404, 0);
}
else {
// Normal SSE response
exchange.getResponseHeaders().set("Content-Type", "text/event-stream");
exchange.sendResponseHeaders(200, 0);
// Send a test SSE event
String sseData = "event: message\ndata: {\"jsonrpc\":\"2.0\",\"method\":\"test\",\"params\":{}}\n\n";
exchange.getResponseBody().write(sseData.getBytes());
}
}
else {
// POST request handling
exchange.getResponseHeaders().set("Content-Type", "application/json");
String responseSessionId = currentServerSessionId.get();
if (responseSessionId != null) {
exchange.getResponseHeaders().set(HttpHeaders.MCP_SESSION_ID, responseSessionId);
}
String response = "{\"jsonrpc\":\"2.0\",\"result\":{},\"id\":\"test-id\"}";
exchange.sendResponseHeaders(200, response.length());
exchange.getResponseBody().write(response.getBytes());
}
exchange.close();
});
// Test with session ID - should get SessionNotFoundException
serverResponseStatus.set(200);
currentServerSessionId.set("sse-session-1");
var transport = WebClientStreamableHttpTransport.builder(WebClient.builder().baseUrl(HOST))
.endpoint("/mcp-sse")
.openConnectionOnStartup(true) // This will trigger GET request on connect
.build();
// First connect successfully
StepVerifier.create(transport.connect(msg -> msg)).verifyComplete();
// Wait for SSE connection to be established
boolean connected = sseConnectionLatch.await(5, TimeUnit.SECONDS);
assertThat(connected).isTrue();
// Send message to establish session
var testMessage = createTestMessage();
StepVerifier.create(transport.sendMessage(testMessage)).verifyComplete();
// Clean up
StepVerifier.create(transport.closeGracefully()).verifyComplete();
}
private McpSchema.JSONRPCRequest createTestMessage() {
var initializeRequest = new McpSchema.InitializeRequest(ProtocolVersions.MCP_2025_03_26,
McpSchema.ClientCapabilities.builder().roots(true).build(),
new McpSchema.Implementation("Test Client", "1.0.0"));
return new McpSchema.JSONRPCRequest(McpSchema.JSONRPC_VERSION, McpSchema.METHOD_INITIALIZE, "test-id",
initializeRequest);
}
}

View file

@ -11,6 +11,7 @@ import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleState;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Timeout;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.reactive.function.client.WebClient;
@ -29,6 +30,7 @@ import io.modelcontextprotocol.server.McpServer.SingleSessionSyncSpecification;
import io.modelcontextprotocol.server.transport.WebMvcSseServerTransportProvider;
import reactor.core.scheduler.Schedulers;
@Timeout(15)
class WebMvcSseIntegrationTests extends AbstractMcpClientServerIntegrationTests {
private static final int PORT = TestUtil.findAvailablePort();

View file

@ -11,6 +11,7 @@ import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleState;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Timeout;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.reactive.function.client.WebClient;
@ -29,6 +30,7 @@ import io.modelcontextprotocol.server.McpServer.StatelessSyncSpecification;
import io.modelcontextprotocol.server.transport.WebMvcStatelessServerTransport;
import reactor.core.scheduler.Schedulers;
@Timeout(15)
class WebMvcStatelessIntegrationTests extends AbstractStatelessIntegrationTests {
private static final int PORT = TestUtil.findAvailablePort();

View file

@ -11,6 +11,7 @@ import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleState;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Timeout;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.reactive.function.client.WebClient;
@ -29,6 +30,7 @@ import io.modelcontextprotocol.server.McpServer.SyncSpecification;
import io.modelcontextprotocol.server.transport.WebMvcStreamableServerTransportProvider;
import reactor.core.scheduler.Schedulers;
@Timeout(15)
class WebMvcStreamableIntegrationTests extends AbstractMcpClientServerIntegrationTests {
private static final int PORT = TestUtil.findAvailablePort();