Fixing external class references

user_config/usr/share/lsp_manager/lsp-servers-config.json

@@ -3,6 +3,7 @@
         "info": "https://download.eclipse.org/jdtls/",
         "info-init-options": "https://github.com/eclipse-jdtls/eclipse.jdt.ls/wiki/Running-the-JAVA-LS-server-from-the-command-line",
         "info-import-build": "https://www.javahotchocolate.com/tutorials/build-path.html",
+        "info-external-class-paths": "https://github.com/eclipse-jdtls/eclipse.jdt.ls/issues/3291",
         "link": "https://download.eclipse.org/jdtls/milestones/?d",
         "command": "lsp-ws-proxy --listen 4114 -- jdtls",
         "alt-command": "lsp-ws-proxy -- jdtls",
@@ -16,6 +17,9 @@
             "workspaceFolders": [
                 "file://"
             ],
+            "extendedClientCapabilities": {
+                "classFileContentsSupport": true
+            },
             "settings": {
                 "java": {
                     "autobuild": {