Spring AI MCP Server using STDIO - Attempting to user JSON RPC from Windows command line with partial success

Bug description Created an MCP server. Added it to VSCode. The server is recognized and the 3 tools defined appear and work. On occasion, the 1 defined resource may appear in one of the VSCode windows but more times than not, selecting the resource results in a VS Code window showing an indeterminate progress bar until I restart VSCode.

What I would like to do is test the MCP server using JSON RPC. Here are the commands I sent using PowerShell and the results. It seems the only successful command that works is the initialization command. Not sure if the way I am attempting to test this is valid. resource or tool list command will return an error if the syntax is wrong, but will not display information when it is correct

echo '{"jsonrpc":"2.0", "id":1, "method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{"roots":{"listChanged":true}, "sampling":{}}, "clientInfo":{"name":"test-client","version":"1.0.0"}}}' | java -jar mcp-server-0.0.1-SNAPSHOT.jar :::::::::{"jsonrpc":"2.0","id":1,"result":{"protocolVersion":"2024-11-05","capabilities":{"completions":{},"logging":{},"prompts":{"listChanged":true},"resources":{"subscribe":false,"listChanged":true},"tools":{"listChanged":true}},"serverInfo":{"name":"sds-mcp-server","version":"1.0.0"}}} : echo '{"jsonrpc":"2.0", "id":1, "method":"list/tools","params":{}}' | java -jar mcp-server-0.0.1-SNAPSHOT.jar
::::::::{"jsonrpc":"2.0","id":1,"error":{"code":-32601,"message":"Method not found: list/tools"}}
: echo '{"jsonrpc":"2.0", "id":1, "method":"tools/list","params":{}}' | java -jar mcp-server-0.0.1-SNAPSHOT.jar ::::::::: echo '{"jsonrpc":"2.0", "id":1, "method":"tools/resources","params":{}}' | java -jar mcp-server-0.0.1-SNAPSHOT.jar ::::::::{"jsonrpc":"2.0","id":1,"error":{"code":-32601,"message":"Method not found: tools/resources"}} : echo '{"jsonrpc":"2.0", "id":1, "method":"list/resources","params":{}}' | java -jar mcp-server-0.0.1-SNAPSHOT.jar ::::::::{"jsonrpc":"2.0","id":1,"error":{"code":-32601,"message":"Method not found: list/resources"}} : echo '{"jsonrpc":"2.0", "id":1, "method":"resources/list","params":{}}' | java -jar mcp-server-0.0.1-SNAPSHOT.jar :::::::::

Environment Windows 11 properties file spring.application.name=mcp-server

spring.ai.mcp.server.type=SYNC spring.ai.mcp.server.name=my-mcp-server spring.ai.mcp.server.version=1.0.0

spring.ai.mcp.server.stdio=true spring.main.web-application-type=none spring.main.banner-mode=off logging.pattern.console=: logging.file.name=./log/mcp-server.log

Steps to reproduce Build the MCP server with a few tools and a resource Run JSON RPC commands from the command line

Expected behavior Could be developer error here

Minimal Complete Reproducible example Example above