Background: • Using leiningen • Have [some.lib "1.0"] and [some.lib "1.0" :classifier "sources"] in project.clj • Tried both eglot and lsp-mode

With cider, I can e.g. cider-doc when over a Java class name to open a doc buffer, which shows the original javadoc descriptions. This buffer also includes a link to the original (non-decompiled) sources under ~/.m2/.. , which allows me to browse the original java sources

But when I try something similar with LSP (e.g. xref-find-definitions): I get a buffer with decompiled Java sources ("Decompiled with CFR 0.152.")

I tried setting :java {:decompile-jar-as-project? false} in my config, but it does not seem to have any effect

Actually, it seems like sometimes navigation to sources works as expected :thinking_face: If I open a project (or restart eglot/lsp-mode), navigating to a class from a (let [^SomeClass foo (get-foo)] .. seems to work fine and I get the sources for SomeClass. However, if later in the code I try the same for (SomeClass/staticMethod) then I get the decompiled sources. And if I go back to the earlier line (the let example) then that now also links to the decompiled sources.

So it feels like sometimes some references trigger the decompilation and once that happens, the original sources are no longer available and the decompiled sources are preferred

if we have the original java source code, we should not decompile, it's probably a bug I'm interested in solving if it's happening

any chance you make a repro in https://github.com/ericdallo/clojure-sample in a branch or any other public repo?

Sure, I’ll try to create a repro later

I was lazy so I just published this very WIP project I'm working on: https://github.com/lassemaatta/murmeli/blob/master/project.clj

the core.clj contains a bunch of interop, https://github.com/lassemaatta/murmeli/blob/master/src/murmeli/core.clj

I also included the .lsp/config.edn

thanks, I'll try to check it soon

In summary (at least on my machine): • xref-find-definitions on something like ^MongoClients -> Opens the proper java sources ◦ Under ~/.emacs.d/workspace/.cache/com.mongodb.client.MongoClients.java (in lsp-mode) ◦ Under ~/.m2/repository/org/mongodb-driver-sync/.../MongoClients.java (in eglot) • xref-find-definitions on something like ServerApiVersion/V1 (or (ServerApi/builder)) -> Opens the decompiled sources ◦ Under .lsp/.cache/java/decompiled/com/mongodb/client/MongoClients.java

BTW as a fun fact: there is a lsp-mode command I created called lsp-clojure-cursor-info , which will tell what's the token at cursor and its definition, pretty useful to debug if analysis are correct for that buffer

with that, we can see that we have java source analysis for com.mongodb.client package but not for com.mongodb , that's why we decompile it. Is the classes of that package also available?

Checking the jar, I can only see java source classes for com.mongodb.client indeed

What about MongoClients/create here https://github.com/lassemaatta/murmeli/blob/master/src/murmeli/core.clj#L29?

that's what I get for lsp-clojure-cursor-info, yet I get the decompiled sources when I navigate to it

hum, it works for me, it goes to the source MongoClients/create :thinking_face:

{:node
 {:value MongoClients/create,
  :string-value "MongoClients/create",
  :map-qualifier nil},
 :elements
 [{:element
   {:end-row 29,
    :name-end-col 45,
    :external? false,
    :name-end-row 29,
    :call true,
    :method-name "create",
    :name-row 29,
    :lang :clj,
    :col 25,
    :class "com.mongodb.client.MongoClients",
    :name-col 26,
    :uri
    "file:///home/greg/dev/clojure-lsp-java-source-issue/src/murmeli/core.clj",
    :end-col 55,
    :bucket :java-class-usages,
    :row 29},
   :definition
   {:end-row 41,
    :name-end-col 0,
    :external? true,
    :name-end-row 0,
    :name-row 0,
    :return-type "MongoClient",
    :name "create",
    :col 5,
    :class "com.mongodb.client.MongoClients",
    :name-col 0,
    :uri
    "jar:file:///home/greg/.m2/repository/org/mongodb/mongodb-driver-sync/5.1.0/mongodb-driver-sync-5.1.0-sources.jar!/com/mongodb/client/MongoClients.java",
    :end-col 5,
    :flags #{:method :public :static},
    :doc
    "/**\n     * Creates a new client with the default connection string \"\".\n     *\n     * @return the client\n     */",
    :parameters [],
    :bucket :java-member-definitions,
    :row 39},
   :semantic-tokens [{:token-type :class, :token-modifier []}]}]} 

Mine is happening because of https://github.com/clojure-lsp/clojure-lsp/blob/8ac7b42f6e4e8afb34bb7b669891f96a38653cb0/lib/src/clojure_lsp/queries.clj#L342, the only thing I can think is that for some reason, there are no java-class-definitions or java-member-definitions for your project when starting it, can you try to clean the .lsp/.cache to see if it changes anything?