jdtls: -32601: No delegateCommandHandler for java.action.generateConstructorsPrompt

[tukaloff]

On vim.lsp.buf.execute_command for java.action.generateConstructorsPrompt return exception:

jdtls: -32601: No delegateCommandHandler for java.action.generateConstructorsPrompt

but works for vim.lsp.buf.code_action

[mfussenegger]

You should only see that if the client sets extendedClientCapabilities.generateConstructorsPromptSupport to true. And if you set that, the client is expected to handle the command on the client side.

It looks like https://github.com/weilbith/nvim-code-action-menu/ doesn't handle client commands at all. You'll have to use the builtin vim.lsp.buf.code_action()

[tukaloff]

@mfussenegger thanks for help!

I tried to set this param in ftplugin/java.lua in my nvim config and use sending command script on java file and still receive this error.

I don't understand how to set it up.

My settings in ftplugin:

...
local extendedClientCapabilities = jdtls.extendedClientCapabilities
extendedClientCapabilities.generateConstructorsPromptSupport = true

local config = {
    cmd = get_cmd(),

    capabilities = capabilities,
    root_dir = require('jdtls.setup').find_root({'.git', 'mvnw', 'gradlew'}),

    settings = {
        ['java.settings.url'] = java_settings_url,
        java = {
            signatureHelp = {enabled = true},
            contentProvider = {preferred = "fernflower"},
            configuration = {
                runtimes = {
                    {
                        name = 'JavaSE-11',
                        path = jdk_dir
                    }
                }
            }
        }
    },
    on_attach = on_attach,

    init_options = {
        extendedClientCapabilities = extendedClientCapabilities
    },
}

jdtls.start_or_attach(config)

script I call on file

local command = {
  arguments = { {
      context = {
        diagnostics = {}
      },
      range = {
        ["end"] = {
          character = 0,
          line = 25
        },
        start = {
          character = 0,
          line = 25
        }
      },
      textDocument = {
        uri = "file:///Users/tukaloff/git/media-fs-transfer-tool/src/main/java/com/tukaloff/mediafstransfertool/FileService.java"
      }
    } },
  command = "java.action.generateConstructorsPrompt",
  title = "Generate Constructors..."
} 

vim.lsp.buf.execute_command(command)

[mfussenegger]

java.action.generateConstructorsPrompt is a client side command. You can't use vim.lsp.buf.execute_command(command) with it, that method is for server side commands.

See https://github.com/neovim/neovim/blob/4e4ad4312e6b3755a2114ab81c62033e6bc616fe/runtime/lua/vim/lsp.lua#L1669 for how neovim core handles commands