Migrate to plumcp

Author: ericdallo

.github/workflows/release.yml

@@ -319,15 +319,11 @@ jobs:
       - name: Install MSVC
         uses: ilammy/msvc-dev-cmd@v1
 
-      - name: Install GraalVM
-        uses: DeLaGuardo/setup-graalvm@master
+      - uses: graalvm/setup-graalvm@v1
         with:
-          graalvm: 22.2.0
-          java: java17
-
-      - name: Install native-image component
-        run: |
-          gu.cmd install native-image
+          java-version: '24'
+          distribution: 'graalvm'
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       # see https://github.com/oracle/graal/issues/4340
       - name: GraalVM workaround to support UPX compression

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Replace MCP Java SDK with plumcp for MCP client communication. SSE transport is no longer supported (deprecated in MCP spec 2025-03-26).
+
 ## 0.112.1
 
 - Fix MCP OAuth credentials cache not invalidating when the server URL changes.

deps-lock.json

@@ -1052,6 +1052,26 @@
       "mvn-repo": "https://repo.clojars.org/",
       "hash": "sha256-RLTLjpPU9rJiwE7Qdx1w3WbnbUXX/HVYIGcaYmVcVDk="
     },
+    {
+      "mvn-path": "io/github/plumce/plumcp.core-json-cheshire/0.2.0-beta2/plumcp.core-json-cheshire-0.2.0-beta2.jar",
+      "mvn-repo": "https://repo.clojars.org/",
+      "hash": "sha256-m7kV4sKUFMzNhjiLpIWqdbU9h4038urAnCsWFHy7BHk="
+    },
+    {
+      "mvn-path": "io/github/plumce/plumcp.core-json-cheshire/0.2.0-beta2/plumcp.core-json-cheshire-0.2.0-beta2.pom",
+      "mvn-repo": "https://repo.clojars.org/",
+      "hash": "sha256-4lwPaipx5jhyog8/irYDq9jqp1DUXAY9ASVgxL5R8Y8="
+    },
+    {
+      "mvn-path": "io/github/plumce/plumcp.core/0.2.0-beta2/plumcp.core-0.2.0-beta2.jar",
+      "mvn-repo": "https://repo.clojars.org/",
+      "hash": "sha256-eOwf4xkhsLcbpAvFF2mH8tQ/P7YKxqbOlYrsgoORSUQ="
+    },
+    {
+      "mvn-path": "io/github/plumce/plumcp.core/0.2.0-beta2/plumcp.core-0.2.0-beta2.pom",
+      "mvn-repo": "https://repo.clojars.org/",
+      "hash": "sha256-6HEfDI5KnfLepGxDrVz69SrD5VsgqXot9rjnFr45bs8="
+    },
     {
       "mvn-path": "io/methvin/directory-watcher/0.17.3/directory-watcher-0.17.3.jar",
       "mvn-repo": "https://repo1.maven.org/maven2/",
@@ -3477,6 +3497,16 @@
       "mvn-repo": "https://repo1.maven.org/maven2/",
       "hash": "sha256-D1omWgYzGwBJ41K+MsoyLeGLF/PU27cGNdQNppLjWC8="
     },
+    {
+      "mvn-path": "org/yaml/snakeyaml/2.4/snakeyaml-2.4.jar",
+      "mvn-repo": "https://repo1.maven.org/maven2/",
+      "hash": "sha256-73ea9dKand6MxwzgNB9cb3c14j7f+Whc6qnTU1m3u38="
+    },
+    {
+      "mvn-path": "org/yaml/snakeyaml/2.4/snakeyaml-2.4.pom",
+      "mvn-repo": "https://repo1.maven.org/maven2/",
+      "hash": "sha256-4VSjIxzWzeaKq/J0/RiWTUmpwaX16e079HHprnvfCOY="
+    },
     {
       "mvn-path": "progrock/progrock/0.1.2/progrock-0.1.2.jar",
       "mvn-repo": "https://repo.clojars.org/",

deps.edn

@@ -3,7 +3,8 @@
         org.clojure/core.async {:mvn/version "1.8.741"}
         org.babashka/cli {:mvn/version "0.8.65"}
         com.github.clojure-lsp/jsonrpc4clj {:mvn/version "1.0.2"}
-        io.modelcontextprotocol.sdk/mcp {:mvn/version "0.17.2"}
+        io.github.plumce/plumcp.core-json-cheshire {:mvn/version "0.2.0-beta2"}
+        org.yaml/snakeyaml {:mvn/version "2.4"} ;; used by eca.shared for YAML parsing
         borkdude/dynaload {:mvn/version "0.3.5"}
         selmer/selmer {:mvn/version "1.12.69"}
         babashka/fs {:mvn/version "0.5.26"}

resources/META-INF/native-image/eca/eca/native-image.properties

@@ -4,6 +4,7 @@ Args=-J-Dborkdude.dynaload.aot=true \
      -J-Dclojure.spec.skip-macros=true \
      --enable-url-protocols=jar,http,https \
      --enable-all-security-services \
+     --add-modules=jdk.httpserver \
      --initialize-at-build-time=com.fasterxml.jackson \
      --initialize-at-build-time=org.yaml.snakeyaml \
      --initialize-at-build-time=io.opentelemetry.api.common.AttributeType \