While a debug session is paused, Alt/Option+click on a variable or expression runs Quick Evaluate at the clicked position (the selection when the click falls inside it) and shows the value next to it; outside a paused session Alt+click keeps its editor behaviour. The editor context menu offers Evaluate Expression… seeded with the selection or the expression at the caret while paused.
Mouse shortcuts now pass the clicked editor and position to the action, and the binding is only consumed when its action is enabled.
Fixes#664
Opening a .class file showed binary content. Class files from library jars, project output directories, navigation, Go to Class and debugger frames now all go through one route to JDT class documents:
- Library classes open the attached source, or the FernFlower decompilation when there is none, read-only and marked as decompiled. java-debug's decompiled-source support is enabled, so breakpoints set in decompiled code map to the original lines and hit, and stepping into such classes lands on the right line.
- Output-directory classes (target/classes, build/classes) open their project source when it exists; otherwise the decompiled text is shown read-only with breakpoints disabled, because jdt.ls returns no line mapping for classes outside the Java model.
- The preferred content provider id is corrected to fernflowerContentProvider (attached sources still win), and the decompiled marker recognises the current FernFlower header.
Verified on macOS with a Maven project: library class from Libraries and Go to Class, breakpoint hit and step into decompiled code, output class with and without source. Not run on Windows, Linux or Gradle projects.
Fixes#394
Java debug preparation ran before a session existed, so the toolbar and console stayed idle until jdtls had finished, and background console output waited for an animation frame.
- Create the Debug session as soon as the action starts, with progress in its console and a Stop that cancels preparation.
- Share launch preparation between Run and Debug, and move JDK and Lombok detection off the async runtime.
- Flush background console output on a timer as well as on animation frames, so a hidden window still receives it.
- Log how long each launch phase takes.
Refs #530
Java debugging resolved the launch and built the workspace before a debug session existed, so during a jdtls build of up to 20 minutes there was no way to stop. A starting notification with Stop now appears before preparation begins, using the same pattern as waiting for a remote JVM. Stop cancels the resolve request, and a late response neither starts a session nor reports an error. Real resolve failures report as before.
Adds Tomcat Server › Local run configurations for WAR applications: installation validation and version detection, Maven/Gradle WAR artifact discovery and build before launch, WAR file or exploded-directory deployment, context path and HTTP port, project JDK or a chosen JRE, VM options, environment variables and opening the browser.
Each configuration runs with its own CATALINA_BASE in the project cache (HTTP, shutdown and local JMX ports configured there); Stop requests a clean shutdown before the usual process timeout. Debug attaches the Java debugger over JDWP. Update Application (Cmd+F10) updates resources, classes and resources with HotSwap, redeploys or restarts the server. Configurations are grouped under Tomcat Server in the configuration tree and Services.
Not verified on a real Windows machine; command construction is unit tested.
Fixes#205
With several sessions running, the toolbar's Rerun and Stop could act on a different configuration than the selected one: when the selected configuration had no matching run session, the widget fell back to the most recently started session of another configuration; and debug sessions did not record the configuration they were started from, so a configuration being debugged never matched and a running npm session took over the buttons.
The widget, Run (Shift+F10) and Stop (Cmd+F2) now target the selected configuration's session, whether it was started with Run or Debug (the most recent when both exist); Rerun of a debug session reruns it in debug. When the selected configuration is not running, the widget offers Run / Debug for it, and Stop remains available for the other running sessions (with a chooser when several are running). Debug sessions keep their originating run configuration. In a focused Run or Debug tool window, Stop still stops the selected tab's process.
Fixes#318
java-debug runs inside jdtls and is reached through its debugServer port, but configurations that aren't Application / Spring Boot and select java-debug (a Shell Script running `catalina.bat run`, say) fell through to the generic launch template, and the adapter launcher tried to start com.microsoft.java.debug.plugin.jar as a process: on Windows that failed with os error 193, elsewhere with a misleading "debug adapter not found".
- Shell script / program configurations with java-debug start with a suspended JDWP agent injected through JAVA_TOOL_OPTIONS and attach once the JVM prints its port, so `catalina.bat run` / `catalina.sh run` can be debugged.
- Maven goals that run the app in Maven's JVM (tomcat7:run, jetty:run(-war), exec:java, or any Maven config with java-debug) are debugged through MAVEN_OPTS.
- Gradle tasks that start no JVM say why they can't be debugged; `debug.startConfig` with a single debuggable config goes through the run debug flow.
- .jar adapters are never spawned as processes, and Windows adapter lookup only accepts PATHEXT files (so npm-installed adapters pick the .cmd shim instead of the POSIX one); the PATHEXT expansion moves to ide_core::process::executable_names, shared with ide-run.
Not run on Windows; the Windows resolution is covered by tests with an injected platform.
Fixes#179
Claude-Session: https://claude.ai/code/session_01Dq6jQQn8ZhRfkkyj3PRutA
While the debugger is suspended, hovering the start of a line shows a small
button left of its text: Run to Cursor runs to that line, and on the execution
line it resumes the program. Settings › Debugger › Show inlay Run to Cursor popup
turns it off.
- Debug console: typed expressions are kept per project, and Browse Console
History (⌥⌘E / Ctrl+Alt+E) lists them, most recent first, to put one back
into the input.
- Diff viewer: Diff Settings (⇧⌘D / Ctrl+Shift+D) opens the viewer options
(side-by-side / unified, whitespace, highlighting, collapsing, scroll sync)
as a popup menu.
Editing and folding
- Move Caret to Code Block Start / End with Selection, Auto-Indent Lines,
Move Element Left / Right (swaps call arguments, parameters and list
entries).
- Fold Code Block folds the {...} block around the caret; Expand to Level
and Expand All to Level 1-5.
- Custom folding regions (//region, #region, <editor-fold>) fold to their
description; Navigate > Custom Folding lists them.
- Error Description shows the problems at the caret; Next / Previous
Highlighted Usage steps through usage highlights.
- Editor tooltips stay below the editor's top edge, so hints on the first
lines no longer hide under the tab bar.
Navigation, project and run
- Navigate > File Path lists the file and its folders to reveal in the file
manager.
- Copy... (F5) opens the Copy dialog for the selection or the open file; the
project view's Refactor submenu gets Copy File.
- Debug... chooses a configuration to debug; Quick Evaluate Expression shows
the selection's value in an expandable hint.
- Inspect Current File runs the inspection without the scope dialog.
- Surround with Live Template lists only $SELECTION$ templates; Java gets
Callable, read / write lock and iterate templates.
Windows
- Stretch the active tool window left / right / up / down, Restore Default
Layout, Go to Next / Previous Splitter, Close Active Tab on a second key,
Stop Background Processes.
All actions have default shortcuts in both keymaps, VS Code preset entries,
main menu items and Chinese translations.
Project view and Keymap settings
- Project view Options: Sort by Name / Type / Modification Time (also in
Find Action).
- Settings > Keymap: Add Mouse Shortcut records a side-button click with
modifiers and checks conflicts like keyboard shortcuts.
- Folding: Expand to Level / Expand All to Level 1-5.
About 270 UI strings were JS template literals with interpolation passed to exact catalog lookup, so they could never be translated; about 25 more spliced lowercase English fragments into sentences.
`tx` now also works as a template tag (`` tx`Remove data source '${name}'?` ``): it looks up the entry by the literal parts (`{name}` placeholders), translates interpolated values that have entries, and remembers generated text so it re-translates after a language switch or when the catalog loads later. Call sites use the tag; spliced fragments are written as whole sentences per variant. Adds 280 Chinese translations and removes stale ones.
The catalog guard now also fails on untagged template literals reaching exact lookup (unless allowlisted with a reason), tagged text missing from the catalog, case-changed or ternary-suffix interpolations, and duplicate template patterns.
Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
Root cause: the IDE only detected installed JDKs and had no way to get one, so any launch needing a newer JDK than the machine has (latest jdtls needs JDK 25) dead-ended in an error.
Fix: IDEA-style Download JDK (Eclipse Temurin via the Adoptium API, sha256-verified, reusing ide-tools' download/verify code; Windows zip, Linux tar.gz, macOS Contents/Home) into <app-data>/tools/jdks, registered with JDK discovery and rescanned after each download. "Download JDK…" in the Project SDK and Language Server JDK pickers; a one-click `java.downloadJdk` "Download JDK N" on "needs JDK N" errors, which also repoints a too-old language server JDK and restarts jdtls.
Siblings: language server status popup, jdtls launch notification, run console classpath error, debug launch, run configurations without a JDK ≥ the module's Java version, Maven/Gradle sync failures, single-file Java run without `java` on PATH.
Verified in the app on macOS: vendor/version/location queries, the Download JDK dialog from the Language Server JDK picker, a real Temurin 25.0.5 download that runs. Not verified on Windows/Linux.
Fixes#49https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
Root cause: run configurations could only launch a process; there was no "attach to a debugger that is already listening" type, and debugServer only connected to 127.0.0.1.
Fix (IDEA / GoLand / PyCharm): debug-only Remote JVM Debug (attach / listen, live JDWP agent args per JDK version), Go Remote (dlv --headless, substitutePath), Python Remote Debug (debugpy --listen, pathMappings) and Attach to Node.js (inspector, localRoot/remoteRoot); debugServer accepts host:port and [v6]:port; JVM listen mode via a cancellable relay so java-debug can attach.
Verified: ide-dap tests (host:port, relay handshake, cancel), run/debugger vitest, in-app on macOS: Python Remote Debug attached to a debugpy server, paused at app.py:3 with variables. Remote JVM/Go/Node not exercised in-app.
Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
* feat: Second pass aligning interactions with IntelliJ IDEA
Result tool windows
- Next/Previous Occurrence (⌥⌘↓/↑) across Find, Usages, Problems, TODO,
Inspection and Hierarchy, with an "N of M" status hint
- Find: reuse the unpinned tab, Pin Tab, source preview, group by file or
directory, exclude moves to the next result, Rerun
- Usages: tabs with pinning, exclude and preview
- Problems, TODO, Inspection: no autoscroll by default, severity-first sorting,
context menu with quick fixes and copy description
- Trees: F4/⌘↓ jump to source; speed search Home/End and arrow handling
Find in Files, bookmarks, navigation
- Replace mode: Enter replaces the selection, ⇧⌥Enter replaces all, multi-select
- Pin Window toggle, highlighted read-only preview, search/replace history (⌥↓),
Alt mnemonics, search context filter (comments / string literals)
- Mnemonic bookmarks (⌥F3, ⌃⇧digit, ⌃digit), ⌘F3 bookmarks popup, descriptions,
⌘-click gutter toggles a bookmark
- Select In popup (⌥F1); Recent Locations double-click and Delete;
Search Everywhere remembers the query per tab
Code insight and refactoring
- Extract/Introduce continue with in-place rename and name suggestions;
expression and occurrence choosers with live highlighting
- Safe Delete confirms first; numbered Refactor This
- Quick Documentation history, in-popup links and a Documentation tool window;
Quick Definition switches between targets and shows the whole declaration
- Goto chooser lists symbol names and can pin to the Find window
- Parameter Info Tab/⇧Tab, intention preview, Reformat dialog and summary,
inlay hint ⌘-click and context menu
- Live templates: Enter moves to the next field, two-step Esc, ⌘J as a lookup,
language surrounders with mnemonics
- File Structure popup as a filterable tree; Show Usages filter and preview;
call hierarchy jumps to call sites
Editor
- Paste re-indents each line by default; Move Statement moves whole statements
in and out of blocks and re-indents
- Type over closing quotes of existing strings; ⌘D/⌘⌫ cover folded regions;
⌥⌫ deletes the preceding word
- ⌃G / ⌃⌘G whole-word rules and wrap hint; double-modifier caret cloning
- Visual-column block selection, nested Collapse All, recursive folding,
fold selection toggle, Go to Matching Brace, gutter drag selects lines,
sticky line and error stripe clicks, Insert toggles overwrite mode
Run, VCS, workbench
- Gutter icons show the last test result; Modify Run Configuration; test tree
hides passed tests, context menu and assertion diff
- Stack frames resolve by fully qualified class name; context run chooser
- Inline Smart Step Into
- Git Log multi-select filters, "me" and date range; favourite branches,
Fetch and tags in the branch popup; stash Keep index and Unstash options
- Terminal tab titles follow the shell; Distraction Free persists; gear menu;
sticky balloons move to the notifications tool window after a while
* fix(vcs): Label restored local changes as yours after Smart Checkout; name the branch checked out
Conflicts from restoring stashed changes show the user's uncommitted
changes on the left like other operations, and the checkout notification
names the new branch instead of the previous one.
* fix: Close the merge editor on Apply; confirm before terminating a running Run tab
Like IDEA, applying a merge result closes its tab, and closing a Run tab
whose process still runs asks before terminating it (with a Settings
toggle and "Do not ask again").
* fix(terminal): Don't start a new session in the background after closing the last tab
The hidden Terminal window stays mounted, so it reopened a session as soon
as the last tab closed. It now opens the Local tab only once the window is
shown again, as IDEA does.
* fix(vcs): Start the merge result from a three-way merge; close the editor on Apply
The result pane now begins with non-conflicting changes merged and each
conflict showing the base text, resolved from the side panes, instead of
raw conflict markers. Apply now reports success, so the tab closes.
fix(search): Match File Structure filter on word starts
* fix: Limit Smart Step Into to the paused line; drop usages hints on callbacks; show full intention titles
Adapters that list every remaining call in the function (debugpy) made Smart
Step Into fall back to a chooser that offered calls from later lines. Targets
are now narrowed to the calls on the paused line, so they are picked in place.
Anonymous functions and callbacks no longer get a 'no usages' hint, and
intention titles are no longer cut short when there is room for them.
* fix: Undo / Redo from the Edit menu and Find Action use the editor's history
They ran the webview's native undo, which misses programmatic edits such as
templates, completion and refactorings, so nothing happened in the editor.
* feat(nav): Complete file paths and flag unresolved web file references
Path completion in href/src/url()/@import, Markdown links and path-like strings, folders first. HTML and CSS paths that name no file get a 'Cannot resolve file' warning. File references resolve in the backend like IDEA's: relative to the file, /-rooted against the project and resource roots.
* feat: Align editor, workbench, run/debug and VCS interactions with IntelliJ IDEA
Keymap
- Let AltGr characters through instead of firing Ctrl+Alt shortcuts (Windows/Linux)
- Double Shift: strict press/release timing, ignored while typing or after Shift+click
- Chords wait 2s and swallow an unmatched second stroke
- Drop CodeMirror defaults that clash with IDEA keys; ⌘Enter is Split Line, add
Scroll to Center and Code Block Start/End
- Add missing IDEA defaults (⌃J, ⌘Y, ⇧⌘C, ⌥⌘Y, ⇧⌘M, F9 Resume, ⌘R Rerun, …)
Editor
- Tab inserts at the caret; smart Backspace to the proper indent; Enter continues
a `//` comment; per-language line comment placement
- Back/Forward records navigations only; ⌘F searches the selected text
- In-place rename; ⌃Space inserts a sole candidate; commit characters only for a
focused lookup; usage highlighting survives edits; ⌥Enter offers fixes from the
caret line; ⌘-hover shows declaration info only for navigable targets
Workbench
- Tool windows: primary and split area per side, six Move To anchors, layout migration
- ⌘W closes tool window content; Shift+Esc from the editor; closing a tab
activates the left neighbour; preview tab and tab limit follow IDEA defaults
- Switcher lists open editors and tool windows; Recent Files Delete removes items
- Search Everywhere tab/scope behaviour; popups close when the window deactivates
- Project view: Copy/Move dialogs on paste, skippable usage search on delete,
new-file input cancels on blur; Settings search Esc clears the filter
- Status bar breadcrumbs open a children popup; notification timeouts
Run / Debug / Build / Terminal
- Run asks to stop a running single-instance config; Rerun restarts silently;
"Allow multiple instances" option
- Run chooser: Enter runs, Shift debugs, F4/Delete/digits
- Type into the console for stdin; Stop covers debug sessions
- Log (Shift+click) and temporary (Alt+click) breakpoints; independent suspend/log
options; Evaluate prefill and history; changed-value highlighting; expandable hints
- Build window opens on failure and jumps to the first error
- Terminal confirms closing a busy tab and lets IDE shortcuts through
VCS
- Correct ours/theirs labels during rebase, cherry-pick and revert
- Smart/Force Checkout; remote branch checkout updates the local branch
- Partial commit by changed block; inline before-commit check results
- F7 continues into the next file; Rollback Lines; Commit and Push; Amend message swap
- Branch delete with Restore; force push confirmation; editable push target;
update summary with the incoming commits
* chore: Regenerate bindings
l0ng-ai