Summary

Integration between lsp-mode and treemacs and implementation of treeview controls using treemacs as a tree renderer.

Synchronization

To enable bidirectional synchronization of lsp workspace folders and treemacs projects.

(lsp-treemacs-sync-mode 1)

Displays tree like error list structure.

lsp-treemacs-quick-fix or press x when you are in Error List view - offer quickfixes for the error at point.

Displays symbols information.

Display references/implementations using tree view:

Display call hierarchy. Use C-u M-x lsp-treemacs-call-hierarchy to display outgoing call hierarchy.

Display type hierarchy.

Browse java dependencies, namespaces, files, etc.