fix: resolve duplicate requests caused by concurrent message sending#333

JooKS-me wants to merge 2 commits intomodelcontextprotocol:mainmodelcontextprotocol/java-sdk:mainfrom

JooKS-me:feature/fix_conncurrent_build_requestJooKS-me/java-sdk:feature/fix_conncurrent_build_requestCopy head branch name to clipboard