From 9e147ef185e25d5f4af7ab07ee266a7ff235fe7e Mon Sep 17 00:00:00 2001
From: norbu <93921032+norbu35@users.noreply.github.com>
Date: Mon, 4 May 2026 07:02:28 +0800
Subject: [PATCH] fix: increase LSP initialize timeout for JDTLS and KotlinLS

JDTLS (Eclipse JDT Language Server) and KotlinLS are JVM-based
language servers that must perform Gradle project sync and workspace
indexing during LSP initialize. For real-world projects this routinely
takes 60-180 seconds, well above the default 45 s timeout.

Add an optional initializeTimeout field to the LSP server Handle
interface so built-in servers can declare their timeout needs. Use it
in the client with the existing 45 s constant as the default.

Set 180 s for JDTLS and KotlinLS, both of which run on the JVM and
trigger Gradle sync during initialization.

Closes anomalyco/opencode#23982
---
 packages/opencode/src/lsp/client.ts | 2 +-
 packages/opencode/src/lsp/server.ts | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/opencode/src/lsp/client.ts b/packages/opencode/src/lsp/client.ts
index 809ea95091b6..528f7aa2e00e 100644
--- a/packages/opencode/src/lsp/client.ts
+++ b/packages/opencode/src/lsp/client.ts
@@ -276,7 +276,7 @@ export async function create(input: { serverID: string; server: LSPServer.Handle
         },
       },
     }),
-    INITIALIZE_TIMEOUT_MS,
+    input.server.initializeTimeout ?? INITIALIZE_TIMEOUT_MS,
   ).catch((err) => {
     logger.error("initialize error", { error: err })
     throw new InitializeError(
diff --git a/packages/opencode/src/lsp/server.ts b/packages/opencode/src/lsp/server.ts
index b8861d1f8167..b87c5adc4a52 100644
--- a/packages/opencode/src/lsp/server.ts
+++ b/packages/opencode/src/lsp/server.ts
@@ -27,6 +27,8 @@ const output = (cmd: string[], opts: Process.RunOptions = {}) => Process.text(cm
 export interface Handle {
   process: ChildProcessWithoutNullStreams
   initialization?: Record<string, any>
+  /** Override the default 45 s initialize-request timeout (ms). */
+  initializeTimeout?: number
 }
 
 type RootFunction = (file: string, ctx: InstanceContext) => Promise<string | undefined>
@@ -1290,6 +1292,7 @@ export const JDTLS: Info = {
           cwd: root,
         },
       ),
+      initializeTimeout: 180_000,
     }
   },
 }
@@ -1389,6 +1392,7 @@ export const KotlinLS: Info = {
       process: spawn(launcherScript, ["--stdio"], {
         cwd: root,
       }),
+      initializeTimeout: 180_000,
     }
   },
 }