jdx body
IDE equivalent: Open the method
Show the body of a member: the verbatim source slice with 1-based line numbers plus provenance (artifact, file, lines). Takes a member reference (e.g. 'com.example.Point#getX()', "Gson#toJson(Object)"). An under-specified name with several overloads exits 2 with candidates. Without paired sources the query names the decompiler tasks instead of guessing. Exits 1 when the member or its sources are unknown, 2 when ambiguous, 4 when the workspace cannot be resolved.
Usage#
jdx body [<options>] <ref>Example#
jdx body 'com.google.gson.Gson#toJson(Object)' --coord com.google.code.gson:gson:2.14.0
com.google.gson.Gson#toJson(java.lang.Object)
source: gson-2.14.0-sources.jar · com/google/gson/Gson.java:542-547
public String toJson(Object src) {
if (src == null) {
return toJson(JsonNull.INSTANCE);
}
return toJson(src, src.getClass());
}
warning MULTI_RELEASE_VARIANT: multi-release gson-2.14.0.jar serves version-specific variants for this JDK (21)
next: jdx show com.google.gson.GsonReal output — this example ran against the current jdx when the page was built.
Options#
| Option | Description |
|---|---|
--context=<int> | Surrounding source lines shown each side of the member (default 0). |
--line-numbers | Prefix each shown line with its 1-based number. |
--max-lines=<int> | Maximum body lines shown (default 200); the rest become a truncation footer. |
--engine=(vineflower|javap) | Disassembly engine: vineflower forces reconstruction even when sources are paired (default serves sources, falling back to vineflower); javap shows the raw bytecode instead. |
--with-doc | Include the member's javadoc beside the body. |
--with-signature | Prepend the resolved bytecode signature header to the body. |
--jars=<text> | Binary roots: jar files, class directories or globs (repeatable). Merge in front of the selected workspace's roots. |
-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#
| Argument | Description |
|---|---|
<ref> | Member reference to show the body of (full or short form). |
Full help text#
Show jdx body --help
jdx body --help
Usage: jdx body [<options>] <ref>
Show the body of a member: the verbatim source slice with 1-based line numbers plus provenance (artifact, file, lines). Takes a member reference (e.g. 'com.example.Point#getX()', "Gson#toJson(Object)"). An under-specified name with several overloads exits 2 with candidates. Without paired sources the query names the decompiler tasks instead of guessing. Exits 1 when the member or its sources are unknown, 2 when ambiguous, 4 when the workspace cannot be resolved.
Options:
--context=<int> Surrounding source lines shown each side of the member (default 0).
--line-numbers Prefix each shown line with its 1-based number.
--max-lines=<int> Maximum body lines shown (default 200); the rest become a truncation footer.
--engine=(vineflower|javap) Disassembly engine: vineflower forces reconstruction even when sources are paired (default serves sources, falling back to vineflower); javap shows the raw bytecode instead.
--with-doc Include the member's javadoc beside the body.
--with-signature Prepend the resolved bytecode signature header to the body.
--jars=<text> Binary roots: jar files, class directories or globs (repeatable). Merge in front of the selected workspace's roots.
-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> Member reference to show the body of (full or short form).Real output — this example ran against the current jdx when the page was built.
Learn more#
Guide: Reading code · All commands