lsp java: Command java.completion.onDidSelect not supported by the server

[sincebyte]

Thank you for the bug report

• I am using the latest version of lsp-mode related packages.
• I checked FAQ and Troubleshooting sections
• You may also try reproduce the issue using clean environment using the following command: M-x lsp-start-plain

Bug description

In doomemacs,I use unpin lsp-mode lsp-java.
It seems when lsp completion exit,there have a lsp error.
doomemacs/doomemacs#8500

error("Timeout while waiting for response.  Method: %s" "workspace/executeCommand")
  lsp-request("workspace/executeCommand" (:command "java.completion.onDidSelect" :arguments ["5" "0"]))
  lsp-workspace-command-execute("java.completion.onDidSelect" ["5" "0"])
  lsp-send-execute-command("java.completion.onDidSelect" ["5" "0"])
  lsp--execute-command((:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]))
  lsp-completion--exit-fn(#("res" 0 3 (lsp-completion-prefix "res" lsp-completion-markers (1663 #<marker (moves after insertion) at 1666 in LoginController.java>) lsp-completion-start-point 1663 lsp-sort-text "999999097" lsp-completion-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663) lsp-completion-unresolved-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663))) finished #f(compiled-function () #<bytecode 0x15a29d721f99cd89>))
  apply(lsp-completion--exit-fn (#("res" 0 3 (lsp-completion-prefix "res" lsp-completion-markers (1663 #<marker (moves after insertion) at 1666 in LoginController.java>) lsp-completion-start-point 1663 lsp-sort-text "999999097" lsp-completion-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663) lsp-completion-unresolved-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663))) finished #f(compiled-function () #<bytecode 0x15a29d721f99cd89>)))
  #f(compiled-function (&rest args-before) #<bytecode -0x2e636bdd2f30fcf>)(#("res" 0 3 (lsp-completion-prefix "res" lsp-completion-markers (1663 #<marker (moves after insertion) at 1666 in LoginController.java>) lsp-completion-start-point 1663 lsp-sort-text "999999097" lsp-completion-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663) lsp-completion-unresolved-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663))) finished)
  corfu--exit-function(#("res" 0 3 (lsp-completion-prefix "res" lsp-completion-markers (1663 #<marker (moves after insertion) at 1666 in LoginController.java>) lsp-completion-start-point 1663 lsp-sort-text "999999097" lsp-completion-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663) lsp-completion-unresolved-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663))) finished nil)
  corfu--done(#("res" 0 3 (lsp-completion-prefix "res" lsp-completion-markers (1663 #<marker (moves after insertion) at 1666 in LoginController.java>) lsp-completion-start-point 1663 lsp-sort-text "999999097" lsp-completion-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663) lsp-completion-unresolved-item (:label "res" :labelDetails (:description "String") :kind 6 :sortText "999999097" :filterText #("res" 0 3 (match-data (0 3 0 1 1 2 2 3))) :insertText "res" :insertTextFormat 2 :insertTextMode 2 :textEdit (:newText "res" :insert (:start (:line 46 :character 8) :end (:line 46 :character 11)) :replace (:start (:line 46 :character 8) :end (:line 46 :character 11))) :command (:title "" :command "java.completion.onDidSelect" :arguments ["5" "0"]) :data (:pid "0" :rid "5") :_emacsStartPoint 1663))) finished nil)
  #f(compiled-function (status) #<bytecode 0x14890603f8bb4268>)(finished)
  apply(#f(compiled-function (status) #<bytecode 0x14890603f8bb4268>) finished)
  #f(compiled-function (&rest args) #<bytecode 0x1f3f383c0b7a7f1f>)(finished)
  apply(#f(compiled-function (&rest args) #<bytecode 0x1f3f383c0b7a7f1f>) finished)
  #f(compiled-function (&rest args) #<bytecode -0x15d40804c7b40147>)()
  #f(compiled-function (cl--cnm status) #<bytecode -0x12319b5b60dbb339>)(#f(compiled-function (&rest args) #<bytecode -0x15d40804c7b40147>) finished)
  apply(#f(compiled-function (cl--cnm status) #<bytecode -0x12319b5b60dbb339>) #f(compiled-function (&rest args) #<bytecode -0x15d40804c7b40147>) finished)
  #f(compiled-function (status) #<bytecode -0x141dc90263699f9>)(finished)
  apply(#f(compiled-function (status) #<bytecode -0x141dc90263699f9>) finished)
  corfu--insert(finished)
  corfu-insert()
  funcall-interactively(corfu-insert)

Steps to reproduce

1. install doom emacs
2. config init.el

       :tools
       ;;ansible
       ;;biblio            ; Writes a PhD for you (citation needed)
       ;;collab            ; buffers with friends
       ;;debugger          ; FIXME stepping through code, to help you add bugs
       ;;direnv
       ;;docker
       ;;editorconfig      ; let someone else argue about tabs vs spaces
       ;;ein               ; tame Jupyter notebooks with emacs
       (eval +overlay)     ; run code, run (also, repls)
       lookup              ; navigate your code and its documentation
       ;;llm               ; when I said you needed friends, I didn't mean...
       lsp               ; M-x vscode
       magit             ; a git porcelain for Emacs
       ;;make              ; run make tasks from Emacs
       ;;pass              ; password manager for nerds
       ;;pdf               ; pdf enhancements
       ;;terraform         ; infrastructure as code
       ;;tmux              ; an API for interacting with tmux
       tree-sitter       ; syntax and parsing, sitting in a tree...
       ;;upload            ; map local to remote projects via ssh/ftp

       :lang
       (java +lsp +tree-sitter)       ; the poster child for carpal tunnel syndrome

3. open a java file in a maven project
4. install tree-sitter lib , install jdtls
5. make some change in the code , such as complete a code segment.
6. then the error occurred.

Expected behavior

when choose a compeletion candicate an error will block emacs and show me the message blew:

lsp-workspace-command-execute: ‘workspace/executeCommand’ with ‘java.completion.onDidSelect’ failed.

(error "Timeout while waiting for response.  Method: workspace/executeCommand")

Which Language Server did you use?

lsp-java

OS

MacOS

Error callstack

[Trace - 11:01:35 AM] Sending notification 'textDocument/didChange'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java",
    "version": 23
  },
  "contentChanges": [
    {
      "range": {
        "start": {
          "line": 266,
          "character": 10
        },
        "end": {
          "line": 266,
          "character": 10
        }
      },
      "rangeLength": 0,
      "text": "debug"
    }
  ]
}


[Trace - 11:01:35 AM] Sending notification 'textDocument/didChange'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java",
    "version": 24
  },
  "contentChanges": [
    {
      "range": {
        "start": {
          "line": 266,
          "character": 10
        },
        "end": {
          "line": 266,
          "character": 15
        }
      },
      "rangeLength": 5,
      "text": ""
    }
  ]
}


[Trace - 11:01:35 AM] Sending notification 'textDocument/didChange'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java",
    "version": 25
  },
  "contentChanges": [
    {
      "range": {
        "start": {
          "line": 266,
          "character": 10
        },
        "end": {
          "line": 266,
          "character": 10
        }
      },
      "rangeLength": 0,
      "text": "debug(${1:channelId});"
    }
  ]
}


[Trace - 11:01:35 AM] Sending notification 'textDocument/didChange'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java",
    "version": 26
  },
  "contentChanges": [
    {
      "range": {
        "start": {
          "line": 266,
          "character": 10
        },
        "end": {
          "line": 266,
          "character": 32
        }
      },
      "rangeLength": 22,
      "text": ""
    }
  ]
}


[Trace - 11:01:35 AM] Sending notification 'textDocument/didChange'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java",
    "version": 27
  },
  "contentChanges": [
    {
      "range": {
        "start": {
          "line": 266,
          "character": 10
        },
        "end": {
          "line": 266,
          "character": 10
        }
      },
      "rangeLength": 0,
      "text": "debug(channelId);"
    }
  ]
}


[Trace - 11:01:35 AM] Sending request 'completionItem/resolve - (71)'.
Params: {
  "label": "debug",
  "labelDetails": {
    "detail": "(String msg)",
    "description": "void"
  },
  "kind": 2,
  "detail": "Logger.debug(String msg) : void",
  "sortText": "999999035",
  "filterText": "debug(String msg) : void",
  "insertText": "debug",
  "insertTextFormat": 2,
  "insertTextMode": 2,
  "textEdit": {
    "newText": "debug(${1:channelId});",
    "insert": {
      "start": {
        "line": 266,
        "character": 10
      },
      "end": {
        "line": 266,
        "character": 10
      }
    },
    "replace": {
      "start": {
        "line": 266,
        "character": 10
      },
      "end": {
        "line": 266,
        "character": 10
      }
    }
  },
  "command": {
    "title": "",
    "command": "java.completion.onDidSelect",
    "arguments": [
      "7",
      "0"
    ]
  },
  "data": {
    "pid": "0",
    "rid": "7"
  }
}


[Trace - 11:01:35 AM] Sending request 'workspace/executeCommand - (72)'.
Params: {
  "command": "java.completion.onDidSelect",
  "arguments": [
    "7",
    "0"
  ]
}


[Trace - 11:01:35 AM] Received notification 'language/progressReport'.
Params: {
  "id": "aa0c720c-fee9-442d-acc1-47b83e0f62dd",
  "task": "Validate documents",
  "status": "0% ",
  "totalWork": 1000,
  "workDone": 0,
  "complete": null
}


[Trace - 11:01:35 AM] Received notification 'window/logMessage'.
Params: {
  "type": 3,
  "message": "2025年9月11日 11:01:35 Reconciled 1. Took 3 ms"
}


[Trace - 11:01:35 AM] Received notification 'language/progressReport'.
Params: {
  "id": "aa0c720c-fee9-442d-acc1-47b83e0f62dd",
  "task": "Validate documents",
  "status": "0% ",
  "totalWork": 1000,
  "workDone": 0,
  "complete": true
}


[Trace - 11:01:35 AM] Received response 'completionItem/resolve - (71)' in 6ms.
Result: {
  "label": "debug",
  "labelDetails": {
    "detail": "(String msg)",
    "description": "void"
  },
  "kind": 2,
  "detail": "Logger.debug(String msg) : void",
  "documentation": {
    "kind": "markdown",
    "value": "Log a message at the DEBUG level.\n\n *  **Parameters:**\n    \n     *  **msg** the message string to be logged"
  },
  "sortText": "999999035",
  "filterText": "debug(String msg) : void",
  "insertText": "debug",
  "insertTextFormat": 2,
  "insertTextMode": 2,
  "textEdit": {
    "newText": "debug(${1:channelId});",
    "insert": {
      "start": {
        "line": 266,
        "character": 10
      },
      "end": {
        "line": 266,
        "character": 10
      }
    },
    "replace": {
      "start": {
        "line": 266,
        "character": 10
      },
      "end": {
        "line": 266,
        "character": 10
      }
    }
  },
  "command": {
    "title": "",
    "command": "java.completion.onDidSelect",
    "arguments": [
      "7",
      "0"
    ]
  }
}


[Trace - 11:01:35 AM] Received response 'workspace/executeCommand - (72)' in 6ms.
Result: null


[Trace - 11:01:35 AM] Received notification 'language/progressReport'.
Params: {
  "id": "80c6789d-4978-4abd-ab65-66c127c4f2b3",
  "task": "Publish Diagnostics",
  "status": "0% ",
  "totalWork": 1000,
  "workDone": 0,
  "complete": null
}


[Trace - 11:01:35 AM] Received notification 'window/logMessage'.
Params: {
  "type": 3,
  "message": "2025年9月11日 11:01:35 begin problem for /PlayController.java"
}


[Trace - 11:01:35 AM] Received notification 'window/logMessage'.
Params: {
  "type": 3,
  "message": "2025年9月11日 11:01:35 3 problems reported for /PlayController.java"
}


[Trace - 11:01:35 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {
  "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java",
  "diagnostics": [
    {
      "range": {
        "start": {
          "line": 21,
          "character": 7
        },
        "end": {
          "line": 21,
          "character": 43
        }
      },
      "severity": 2,
      "code": "268435844",
      "source": "Java",
      "message": "The import com.genersoft.iot.vmp.utils.DateUtil is never used",
      "tags": [
        1
      ]
    },
    {
      "range": {
        "start": {
          "line": 56,
          "character": 22
        },
        "end": {
          "line": 56,
          "character": 27
        }
      },
      "severity": 2,
      "code": "570425421",
      "source": "Java",
      "message": "The value of the field PlayController.cmder is not used",
      "tags": [
        1
      ]
    },
    {
      "range": {
        "start": {
          "line": 125,
          "character": 19
        },
        "end": {
          "line": 125,
          "character": 22
        }
      },
      "severity": 2,
      "code": "134217861",
      "source": "Java",
      "message": "The constructor URL(String) is deprecated",
      "tags": [
        2
      ]
    }
  ]
}


[Trace - 11:01:35 AM] Received notification 'window/logMessage'.
Params: {
  "type": 3,
  "message": "2025年9月11日 11:01:35 Validated 1. Took 44 ms"
}


[Trace - 11:01:35 AM] Received notification 'language/progressReport'.
Params: {
  "id": "80c6789d-4978-4abd-ab65-66c127c4f2b3",
  "task": "Publish Diagnostics",
  "status": "50% ",
  "totalWork": 1000,
  "workDone": 500,
  "complete": true
}


[Trace - 11:01:45 AM] Sending request 'textDocument/documentHighlight - (73)'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java"
  },
  "position": {
    "line": 266,
    "character": 16
  }
}


[Trace - 11:01:45 AM] Sending request 'textDocument/codeLens - (74)'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java"
  }
}


[Trace - 11:01:45 AM] Received response 'textDocument/codeLens - (74)' in 5ms.
Result: []


[Trace - 11:01:45 AM] Received response 'textDocument/documentHighlight - (73)' in 29ms.
Result: [
  {
    "range": {
      "start": {
        "line": 264,
        "character": 63
      },
      "end": {
        "line": 264,
        "character": 72
      }
    },
    "kind": 3
  },
  {
    "range": {
      "start": {
        "line": 266,
        "character": 16
      },
      "end": {
        "line": 266,
        "character": 25
      }
    },
    "kind": 2
  },
  {
    "range": {
      "start": {
        "line": 267,
        "character": 41
      },
      "end": {
        "line": 267,
        "character": 50
      }
    },
    "kind": 2
  },
  {
    "range": {
      "start": {
        "line": 280,
        "character": 37
      },
      "end": {
        "line": 280,
        "character": 46
      }
    },
    "kind": 2
  },
  {
    "range": {
      "start": {
        "line": 281,
        "character": 32
      },
      "end": {
        "line": 281,
        "character": 41
      }
    },
    "kind": 2
  }
]


[Trace - 11:01:46 AM] Sending request 'textDocument/hover - (75)'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java"
  },
  "position": {
    "line": 266,
    "character": 16
  }
}


[Trace - 11:01:46 AM] Received response 'textDocument/hover - (75)' in 30ms.
Result: {
  "contents": {
    "language": "java",
    "value": "String channelId - com.genersoft.iot.vmp.vmanager.gb28181.play.PlayController.getSnap(String, String, boolean)"
  }
}


[Trace - 11:01:50 AM] Sending request 'textDocument/hover - (76)'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java"
  },
  "position": {
    "line": 266,
    "character": 16
  }
}


[Trace - 11:01:50 AM] Received response 'textDocument/hover - (76)' in 20ms.
Result: {
  "contents": {
    "language": "java",
    "value": "String channelId - com.genersoft.iot.vmp.vmanager.gb28181.play.PlayController.getSnap(String, String, boolean)"
  }
}


[Trace - 11:01:54 AM] Sending notification 'textDocument/willSave'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java"
  },
  "reason": 2
}


[Trace - 11:02:39 AM] Sending notification 'textDocument/willSave'.
Params: {
  "textDocument": {
    "uri": "file:///Users/van/ZY/workspace/wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/play/PlayController.java"
  },
  "reason": 2
}

Anything else?

No response

[sincebyte]

I confirmed the issue was caused by the lsp-workspace-command-execute function, which incorrectly handled null responses from the LSP server. The fix was implemented within lsp-mode to properly manage these cases.

(defun lsp-workspace-command-execute (command &optional args)
  "Execute workspace COMMAND with ARGS."
  (condition-case-unless-debug err
      (let ((params (if args
                        (list :command command :arguments args)
                      (list :command command))))
        (lsp-request-async "workspace/executeCommand" params
                (lambda (result) (message "Command executed."))
                :error-handler (lambda (err) (message "Error: %s" err))))))