jdx usages

$ jdx usages --help
Usage: jdx usages [<options>] <ref>

  Find usages of a type or member across the workspace's bytecode roots plus project source dirs: one row per referencing method (bytecode) or mentioning line (source dirs, ref kind). --kind narrows to call|read|write|ref|new|throw|annotation (default: all); new shows constructor <init> call sites, throw shows methods declaring the type in throws (declaration-level, not ATHROW throw sites), annotation shows annotated classes and members; source-dir hits are textual mentions (ref only), so call|read|write|new|throw|annotation show bytecode-backed edges alone. impl|override land with hierarchy (jdx hierarchy, jdx implementors). --in/--exclude filter by artifact label (jar file, JDK module or source-dir name). --src adds a source dir root (repeatable; stored via jdx ws create --src). Exits 1 when the symbol is unknown or unused, 2 on an ambiguous short name.

Options:
  --kind=(all|call|read|write|ref|impl|override|new|throw|annotation)  Edge kind: call, read, write, ref, new, throw, annotation or all (default all). throw = throws declarations, not ATHROW sites. impl|override land with hierarchy (jdx hierarchy, jdx implementors).
  --in=<text>                                                          Only artifacts whose label matches this glob (jar file name, JDK module or source-dir name).
  --exclude=<text>                                                     Skip artifacts whose label matches this glob.
  --limit=<int>                                                        Maximum usages shown (default 50); the rest become a truncation footer.
  --context=<int>                                                      Source lines around each call site (not supported: source-rendered call sites live in jdx samples).
  --jars=<text>                                                        Binary roots: jar files, class directories or globs (repeatable). Merge in front of the selected workspace's roots.
  --src=<text>                                                         Source-dir roots: directories of .java/.kt files scanned textually for whole-word mentions (ref kind, from <relpath>:<line>). Merge in front of the selected workspace's stored srcs.
  -w, --workspace=<text>                                               Use a named workspace (see jdx ws). Explicit --jars merge in front of it.
  --no-jdk                                                             Do not include the running JDK's stdlib (included by default).
  --coord=<text>                                                       Maven coordinate root group:artifact:version (repeatable). Resolved from ~/.gradle/caches and ~/.m2 first; with --fetch, downloaded from Maven repositories into <cache-dir>/m2 with checksum verification. Merges in front of the workspace.
  --repo=<text>                                                        Maven repository base URL for --coord fetches (repeatable, e.g. --repo https://repo.example.com/maven2). Tried in flag order before Maven Central, which stays last as the fallback. Must be an http(s) URL.
  --fetch                                                              Allow downloading --coord artifacts (and their -sources.jar) from Maven repositories (Central by default, --repo to add mirrors). Without it, coordinates resolve from the local caches only.
  --json                                                               Emit machine-readable JSON instead of human-readable text (same information, D-007).
  --no-color                                                           Disable ANSI colors even on a TTY (piped output is always plain).
  --no-daemon                                                          Force in-process execution: do not forward this query to the background daemon even when its socket answers (PROPOSAL.md §14.1).
  -h, --help                                                           Show this message and exit

Arguments:
  <ref>  Type or member reference to find usages of (full or short form).

Real output — this example ran against the current jdx when the page was built.