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Add support context propagation

enhancementNew feature or requestNew feature or request

Status: Closed (completed).

Enhancement

#225 In modelcontextprotocol/java-sdk;

· by He-Pin was closed on Feb 17, 2026

Add OutputSchema to Tool and CallToolResult.structuredContent

enhancementNew feature or requestNew feature or request

P1Significant bug affecting many users, highly requested featureSignificant bug affecting many users, highly requested feature

Status: Closed (completed).

Enhancement

#285 In modelcontextprotocol/java-sdk;

· by pantanurag555 was closed on Feb 18, 2026

Add support for structured output

duplicateThis issue or pull request already existsThis issue or pull request already exists

enhancementNew feature or requestNew feature or request

P1Significant bug affecting many users, highly requested featureSignificant bug affecting many users, highly requested feature

Status: Duplicate of an existing item.

Enhancement

#278 In modelcontextprotocol/java-sdk;

· by He-Pin was closed on Feb 18, 2026

· Duplicate

Fix stdio tests - proper server-everything argument

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 237

#237 In modelcontextprotocol/java-sdk;

· by chemicL was closed on May 14, 2025

Fix flaky WebFluxSse integration test

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 238

#238 In modelcontextprotocol/java-sdk;

· by chemicL was closed on May 15, 2025

refactor: deprecate tool spec's arguments-only handler in favor of CallToolRequest

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 375

#375 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 11, 2025

Feature: Add completions context

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 369

#369 In modelcontextprotocol/java-sdk;

· by bzsurbhi was closed on Jul 11, 2025

refactor: extract MCP client initialization logic into LifecycleInitializer

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 370

#370 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 11, 2025

Fix non-OK HTTP POST responses handling

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 374

#374 In modelcontextprotocol/java-sdk;

· by chemicL was closed on Jul 11, 2025

fix: improve error handling in HttpClientSseClientTransport and add test

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 391

#391 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 13, 2025

cleanup: Cleaned up some unused imports.

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 358

#358 In modelcontextprotocol/java-sdk;

· by sunyuhan1998 was closed on Jul 14, 2025

refactor: reformat McpSchema.java and reorganize imports

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 392

#392 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 15, 2025

fix: improve compatibility with non-compliant MCP servers

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 413

#413 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 22, 2025

feat: add ignorable JSON-RPC methods support for both client and server

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 417

#417 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 22, 2025

feat: implement HttpClient Streamable HTTP transport

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 337

#337 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 3, 2025

Streamable HTTP Server abstractions and WebFlux transport provider

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 420

#420 In modelcontextprotocol/java-sdk;

· by chemicL was closed on Jul 30, 2025

feat: refactor the tool specifications

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 351

#351 In modelcontextprotocol/java-sdk;

· by tzolov was closed on Jul 5, 2025

Support Progress Flow for McpServer

area/client

area/mcp-schema

area/server

enhancementNew feature or requestNew feature or request

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 300

#300 In modelcontextprotocol/java-sdk;

· by 134130 was closed on Jul 17, 2025

WebClient Streamable HTTP support

enhancementNew feature or requestNew feature or request

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 292

#292 In modelcontextprotocol/java-sdk;

· by chemicL was closed on Jun 10, 2025

typo fix

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 340

#340 In modelcontextprotocol/java-sdk;

· by epaga was closed on Jun 26, 2025

feat: implement support for elicitation

area/client

enhancementNew feature or requestNew feature or request

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 271

#271 In modelcontextprotocol/java-sdk;

· by LucaButBoring was closed on Jun 10, 2025

feat: Propagate Context to eager connect via McpClientSession

enhancementNew feature or requestNew feature or request

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 339

#339 In modelcontextprotocol/java-sdk;

· by chemicL was closed on Jun 26, 2025

Fix Streamable HTTP WebClient GET SSE handling

bugSomething isn't workingSomething isn't working

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 318

#318 In modelcontextprotocol/java-sdk;

· by chemicL was closed on Jun 16, 2025

docs: update loggingNotification javadoc to specify single client

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Merged (completed).

modelcontextprotocol/java-sdknumber 329

#329 In modelcontextprotocol/java-sdk;

· by LucaButBoring was closed on Jun 23, 2025

chore: implement integration test for sampling

testsAddresses tests onlyAddresses tests only

Status: Closed (abandoned).

modelcontextprotocol/java-sdknumber 255

#255 In modelcontextprotocol/java-sdk;

· by LucaButBoring was closed on Jun 16, 2025