Update copyright headers to 2025 and clean up code

- Add copyright headers to files missing them
- Add blank lines after copyright headers for consistency
- Remove unused imports in test files
- Remove unnecessary keep-alive warning logs in WebFlux and WebMvc transport providers

Signed-off-by: Christian Tzolov <christian.tzolov@broadcom.com>

mcp-spring/mcp-spring-webflux/src/main/java/io/modelcontextprotocol/client/transport/WebClientStreamableHttpTransport.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2025-2025 the original author or authors.
+ */
+
 package io.modelcontextprotocol.client.transport;
 
 import java.io.IOException;

mcp-spring/mcp-spring-webflux/src/main/java/io/modelcontextprotocol/client/transport/WebFluxSseClientTransport.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2024 - 2024 the original author or authors.
  */
+
 package io.modelcontextprotocol.client.transport;
 
 import java.io.IOException;

mcp-spring/mcp-spring-webflux/src/main/java/io/modelcontextprotocol/server/transport/WebFluxSseServerTransportProvider.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2025-2025 the original author or authors.
+ */
+
 package io.modelcontextprotocol.server.transport;
 
 import java.io.IOException;

mcp-spring/mcp-spring-webflux/src/main/java/io/modelcontextprotocol/server/transport/WebFluxStatelessServerTransport.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2025-2025 the original author or authors.
+ */
+
 package io.modelcontextprotocol.server.transport;
 
 import com.fasterxml.jackson.databind.ObjectMapper;

mcp-spring/mcp-spring-webflux/src/main/java/io/modelcontextprotocol/server/transport/WebFluxStreamableServerTransportProvider.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2025-2025 the original author or authors.
+ */
+
 package io.modelcontextprotocol.server.transport;
 
 import com.fasterxml.jackson.core.type.TypeReference;
@@ -89,10 +93,6 @@ public class WebFluxStreamableServerTransportProvider implements McpStreamableSe
 
 			this.keepAliveScheduler.start();
 		}
-		else {
-			logger.warn("Keep-alive interval is not set or invalid. No keep-alive will be scheduled.");
-		}
-
 	}
 
 	@Override

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/WebFluxSseIntegrationTests.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2024 - 2024 the original author or authors.
  */
+
 package io.modelcontextprotocol;
 
 import static net.javacrumbs.jsonunit.assertj.JsonAssertions.assertThatJson;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/WebFluxStatelessIntegrationTests.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2024 - 2024 the original author or authors.
  */
+
 package io.modelcontextprotocol;
 
 import com.fasterxml.jackson.databind.ObjectMapper;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/WebFluxStreamableIntegrationTests.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2024 - 2024 the original author or authors.
  */
+
 package io.modelcontextprotocol;
 
 import com.fasterxml.jackson.databind.ObjectMapper;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/client/WebClientStreamableHttpAsyncClientResiliencyTests.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2025-2025 the original author or authors.
+ */
+
 package io.modelcontextprotocol.client;
 
 import io.modelcontextprotocol.client.transport.WebClientStreamableHttpTransport;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/client/WebClientStreamableHttpAsyncClientTests.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2025-2025 the original author or authors.
+ */
+
 package io.modelcontextprotocol.client;
 
 import org.junit.jupiter.api.Timeout;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/client/WebClientStreamableHttpSyncClientTests.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2025-2025 the original author or authors.
+ */
+
 package io.modelcontextprotocol.client;
 
 import org.junit.jupiter.api.Timeout;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/server/WebFluxStreamableMcpAsyncServerTests.java

@@ -5,9 +5,7 @@
 package io.modelcontextprotocol.server;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import io.modelcontextprotocol.server.transport.WebFluxSseServerTransportProvider;
 import io.modelcontextprotocol.server.transport.WebFluxStreamableServerTransportProvider;
-import io.modelcontextprotocol.spec.McpServerTransportProvider;
 import io.modelcontextprotocol.spec.McpStreamableServerTransportProvider;
 import org.junit.jupiter.api.Timeout;
 import org.springframework.http.server.reactive.HttpHandler;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/server/WebFluxStreamableMcpSyncServerTests.java

@@ -5,7 +5,6 @@
 package io.modelcontextprotocol.server;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import io.modelcontextprotocol.server.transport.WebFluxSseServerTransportProvider;
 import io.modelcontextprotocol.server.transport.WebFluxStreamableServerTransportProvider;
 import io.modelcontextprotocol.spec.McpStreamableServerTransportProvider;
 import org.junit.jupiter.api.Timeout;

mcp-spring/mcp-spring-webflux/src/test/java/io/modelcontextprotocol/server/transport/BlockingInputStream.java

@@ -1,6 +1,7 @@
 /*
 * Copyright 2024 - 2024 the original author or authors.
 */
+
 package io.modelcontextprotocol.server.transport;
 
 import java.io.IOException;

mcp-spring/mcp-spring-webmvc/src/main/java/io/modelcontextprotocol/server/transport/WebMvcStatelessServerTransport.java

@@ -1,3 +1,7 @@
+/*
+ * Copyright 2024-2024 the original author or authors.
+ */
+
 package io.modelcontextprotocol.server.transport;
 
 import com.fasterxml.jackson.databind.ObjectMapper;

mcp-spring/mcp-spring-webmvc/src/main/java/io/modelcontextprotocol/server/transport/WebMvcStreamableServerTransportProvider.java

@@ -95,9 +95,6 @@ public class WebMvcStreamableServerTransportProvider implements McpStreamableSer
 
 	private McpTransportContextExtractor<ServerRequest> contextExtractor;
 
-	// private Function<ServerRequest, McpTransportContext> contextExtractor = req -> new
-	// DefaultMcpTransportContext();
-
 	/**
 	 * Flag indicating if the transport is shutting down.
 	 */
@@ -142,9 +139,6 @@ public class WebMvcStreamableServerTransportProvider implements McpStreamableSer
 
 			this.keepAliveScheduler.start();
 		}
-		else {
-			logger.warn("Keep-alive interval is not set or invalid. No keep-alive will be scheduled.");
-		}
 	}
 
 	@Override

mcp-test/src/main/java/io/modelcontextprotocol/AbstractMcpClientServerIntegrationTests.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2024 - 2024 the original author or authors.
  */
+
 package io.modelcontextprotocol;
 
 import static net.javacrumbs.jsonunit.assertj.JsonAssertions.assertThatJson;

mcp-test/src/main/java/io/modelcontextprotocol/AbstractStatelessIntegrationTests.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2024 - 2024 the original author or authors.
  */
+
 package io.modelcontextprotocol;
 
 import static net.javacrumbs.jsonunit.assertj.JsonAssertions.assertThatJson;

mcp-test/src/main/java/io/modelcontextprotocol/client/AbstractMcpAsyncClientResiliencyTests.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2024-2024 the original author or authors.
  */
+
 package io.modelcontextprotocol.client;
 
 import eu.rekawek.toxiproxy.Proxy;

mcp-test/src/main/java/io/modelcontextprotocol/server/TestUtil.java

@@ -1,6 +1,7 @@
 /*
 * Copyright 2025 - 2025 the original author or authors.
 */
+
 package io.modelcontextprotocol.server;
 
 import java.io.IOException;