Root cause: every java launch inlined the whole classpath into one -cp argument with no "Shorten command line", so long classpaths exceeded CreateProcessW's 32767-char limit (os error 206) before the JVM started.
Fix (IDEA's auto "Shorten command line"): ide-run rewrites a too-long java command line at spawn time — @argfile on JDK 9+ with ASCII paths, otherwise a MANIFEST pathing jar (percent-encoded file: URLs, 72-byte lines); temp files are removed when the process exits. Debug passes the same choice to java-debug's shortenCommandLine.
Siblings covered: Application/Spring Boot, test classpath, Kotlin main, explicit java -cp configs, profiler, PTY launches, Debug.
Verified: unit tests, pathing jar loaded by real JDK 8/11/25, ProcessManager integration test with 3000 entries on JDK 8/17/25. Not verified on Windows.
Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
Project & files
- Project view modes (Project Files / Open Files / All Changed Files /
Scratches); External Libraries for Python, JDK (src.zip), Node, Cargo, Go,
Maven/Gradle jars; read-only jar/zip browsing
- ⌘N New popup with type search and more file kinds; New Project, Rename
Project, Reload All from Disk, Export/Import Settings, Power Save Mode
- File type associations, extra content roots and exclude patterns (indexed
and watched without reopening the project)
Editor & navigation
- Find bar: search scope (comments/strings), Preserve Case, Exclude, multiline,
history; Find in Files: Module scope, custom pattern scopes, multiline
- Search Everywhere filters, Assign Shortcut, settings results; named bookmark
lists, file/folder bookmarks; Structure filters and Show Inherited; Recent
Locations timestamps and breadcrumbs; Code Vision author
- Completion options, editor tab placement/layout, inline completion (LSP 3.18)
- Spell checking (Typo inspection, ide-spell) and Inspections settings with
custom profiles; Code Style schemes, formatter markers, Do not format
Run, VCS, services, database
- Typed run configurations (Shell, Program, npm, Gradle, Maven, Docker,
Compound), Modify options, Before launch, env dialog, Current File,
Emulate terminal (PTY)
- Git log graph/view options, Go to Hash/Branch/Tag, date filter keeps the
graph; Pull/Merge/Rebase dialogs, Manage Remotes, Worktrees
- Generic Services host (Docker connections/registries, run sessions); TODO
scope/changes tabs with changelists; Coverage report import
- Data sources: wire-compatible vendors, URL import, SSL certs, Options,
Schemas and Advanced tabs, color and comment
Workbench
- Run Anything, Customize Main Toolbar, named tool window layouts, menu
completeness, Code Cleanup, macros, "Don't Show Again", editor banners
- Chinese translations for the new UI
Claude-Session: https://claude.ai/code/session_01SaPPsVPuk6ZTNsoUCNCbMv
l0ng-ai