Repository Analysis

xuxueli/xxl-job

A distributed task scheduling framework.(分布式任务调度平台XXL-JOB)

4.9 Likely human-written View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of xuxueli/xxl-job, a Java project with 30,361 GitHub stars. SynthScan v2.0 examined 52,511 lines of code across 271 source files, recording 158 pattern matches distributed across 4 syntactic categories. The overall adjusted score of 4.9 places this repository in the Likely human-written band.

The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).

4.9
Adjusted Score
4.9
Raw Score
100%
Time Factor
2026-07-04
Last Push
30.4K
Stars
Java
Language
52.5K
Lines of Code
271
Files
158
Pattern Hits
2026-07-14
Scan Date
0.04
HC Hit Rate

What These Metrics Mean

Adjusted Score
Primary synthetic code indicator. Raw score normalised per 1,000 lines of code and multiplied by the temporal discount factor. This is the definitive comparative metric — use it to rank repositories by AI authorship density.
Raw Score
The unmodified sum of all severity-weighted, context-multiplied pattern match scores before temporal discounting. Reflects the absolute signal strength independent of when the repository was last active.
Time Factor
The temporal discount multiplier (0–100%) applied to the raw score. Repositories last updated before ChatGPT's launch (Nov 2022) receive a 5% factor. Full signal is only assigned to repositories active in the post-adoption era (Jan 2024+).
Pattern Hits
Total count of individual pattern matches across all files and categories. A high hit count with a low score may indicate a very large codebase with isolated AI snippets; a low count with a high score indicates dense, concentrated AI signatures.
HC Hit Rate
High+Critical pattern hits per file, averaged across the repository. This orthogonal signal catches repositories where a few files are densely packed with high-severity AI tells — a strong indicator even when the normalised score appears moderate due to codebase size.
Lines of Code / Files
Total lines and files analysed. The scanner examines 94 file extensions. These denominators are used to normalise the score, enabling fair comparison between repositories of vastly different sizes.

Score History

This chart maps the temporal evolution of the adjusted synthetic code score across successive scan runs. An upward trajectory indicates ongoing incorporation of AI-generated code or expanding LLM-assisted scaffolding; a stable or declining trajectory may reflect active human refactoring, code removal, or the adoption of stricter authorship policies. The dashed secondary line (right axis) independently tracks total raw pattern hit count, which can diverge from the normalised score when codebase size changes significantly between scans.

Severity Breakdown

Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.

CRITICAL 11HIGH 0MEDIUM 0LOW 147

Directory Score Breakdown

This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.

Pattern Findings

The scanner identified 158 distinct pattern matches across 4 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.

Reading the findings table: The Severity column indicates the diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.

Over-Commented Block131 hits · 130 pts
SeverityFileLineSnippetContext
LOW…a/com/xxl/job/executor/controller/IndexController.java1//package com.xxl.job.executor.mvc.controller;COMMENT
LOW…va/com/xxl/job/core/handler/annotation/JobHandler.java1//package com.xxl.job.core.handler.annotation;COMMENT
LOW…va/com/xxl/job/core/handler/annotation/JobHandler.java21//COMMENT
LOW…ava/com/xxl/job/core/util/deprecated/ShardingUtil.java1//package com.xxl.job.core.util;COMMENT
LOW…ava/com/xxl/job/core/util/deprecated/ShardingUtil.java21// public int getIndex() {COMMENT
LOW…ava/com/xxl/job/core/util/deprecated/ShardingUtil.java41//COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java1//package com.xxl.job.core.util;COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java21// gson= new GsonBuilder().setDateFormat("yyyy-MM-dd HH:mm:ss").disableHtmlEscaping().create();COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java41// * <pre>COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java61// * @param classOfTCOMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java81// public Type getRawType() {COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java101// * json 转成 特定的 Type 的ObjectCOMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java121// * List<Demo> demoList = GsonTool.fromJsonList(json, Demo.class);COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java141// * @param keyClassCOMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java161// return gson.toJsonTree(src);COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java181// * @returnCOMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/GsonTool.java201//COMMENT
LOW…va/com/xxl/job/core/util/deprecated/ThrowableUtil.java1//package com.xxl.job.core.util;COMMENT
LOW…va/com/xxl/job/core/util/deprecated/ThrowableUtil.java21// return errorMsg;COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java1//package com.xxl.job.core.util;COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java21//COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java41// }COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java61// && IP_PATTERN.matcher(name).matches()COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java81// */COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java101// // 1、prefer filter NetworkInterfaceCOMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java121// }COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java141// InetAddress addressItem = toValidAddress(localAddress);COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java161// if (LOCAL_ADDRESS != null) {COMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java181// * @param portCOMMENT
LOW…main/java/com/xxl/job/core/util/deprecated/IpUtil.java201//COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java1//package com.xxl.job.core.util;COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java21// * delete recursivelyCOMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java41//COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java61// fos = new FileOutputStream(file);COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java81//COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java101// }COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java121// content += "\r\n";COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java141// }COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/FileUtil.java161// while ((line = reader.readLine())!=null) {COMMENT
LOW…om/xxl/job/core/util/deprecated/ExecutorBizClient.java1//package com.xxl.job.core.openapi.client;COMMENT
LOW…om/xxl/job/core/util/deprecated/ExecutorBizClient.java21//COMMENT
LOW…om/xxl/job/core/util/deprecated/ExecutorBizClient.java41// @OverrideCOMMENT
LOW…a/com/xxl/job/core/util/deprecated/AdminBizClient.java1//package com.xxl.job.core.openapi.client;COMMENT
LOW…a/com/xxl/job/core/util/deprecated/AdminBizClient.java21// this.addressUrl = addressUrl;COMMENT
LOW…a/com/xxl/job/core/util/deprecated/AdminBizClient.java41// return XxlJobRemotingUtil.postBody(addressUrl+"api/callback", accessToken, timeout, handleCallbackRequestList,COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java1//package com.xxl.job.core.util;COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java21// // ---------------------- format parse ----------------------COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java41// }COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java61// * format date. like "yyyy-MM-dd HH:mm:ss"COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java81// }COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java101// public static Date parseDateTime(String dateString) {COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java121// }COMMENT
LOW…in/java/com/xxl/job/core/util/deprecated/DateUtil.java141//COMMENT
LOW…ain/java/com/xxl/job/core/util/deprecated/ReturnT.java1//package com.xxl.job.core.openapi.model;COMMENT
LOW…ain/java/com/xxl/job/core/util/deprecated/ReturnT.java21//COMMENT
LOW…ain/java/com/xxl/job/core/util/deprecated/ReturnT.java41// public String getMsg() {COMMENT
LOW…ain/java/com/xxl/job/core/util/deprecated/ReturnT.java61// ", msg='" + msg + '\'' +COMMENT
LOW…ain/java/com/xxl/job/core/util/deprecated/ReturnT.java81// public static <T> ReturnT<T> of(int code, String msg, T data) {COMMENT
LOW…ain/java/com/xxl/job/core/util/deprecated/ReturnT.java101// }COMMENT
LOW…com/xxl/job/core/util/deprecated/JdkSerializeTool.java1//package com.xxl.job.core.util;COMMENT
71 more matches not shown…
Hallucination Indicators11 hits · 110 pts
SeverityFileLineSnippetContext
CRITICAL…/resources/static/plugins/codemirror/lib/codemirror.js8787 return this.cm.display.wrapper.ownerDocument.getSelection()CODE
CRITICAL…/static/adminlte/bower_components/jquery/jquery.min.js2!function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):fCODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js55{},g=a.split(/\s+/g);a=CKEDITOR.tools.style.parse._findColor(a);a.length&&(e.color=a[0]);CKEDITOR.tools.array.forEach(g,CODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js356this.$.scrollTop;this.$.focus();this.$.scrollTop=b}else this.$.focus();else this.$.setActive()}catch(c){if(!CKEDITOR.envCODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js521'"':"")+"\x3e"+d.call(this,b,c)+"\x3c/span\x3e"}]},CKEDITOR.dialog._.uiElementBuilders.hbox.build(b,e,a));return a.join(CODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js539focus:function(){var a=this.selectParentTab();setTimeout(function(){var b=a.getInputElement();b&&b.$.focus()},0)},selectCODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js540getValue:function(){var a=CKEDITOR.ui.dialog.uiElement.prototype.getValue.call(this);if(this.bidi&&a){var b=this.getDireCODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js580this._.tabBarMode&&(this._.tabBarMode=!1,this._.currentFocusIndex=-1,k(1)),a.data.preventDefault())},this);A=[];B=CKEDITCODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js590c.focus();setTimeout(function(){c.focusManager.unlock();CKEDITOR.env.iOS&&c.window.focus()},0)}delete this._.parentDialoCODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js968(delete d.scaytDict,a.config.scayt_uiTabs[2]=0,CKEDITOR.plugins.scayt.alarmCompatibilityMessage());return d}});a.contextCODE
CRITICAL…/static/adminlte/bower_components/ckeditor/ckeditor.js1165b.focusManager.focus(c)}function D(){CKEDITOR.env.gecko&&this.editor.unlockSelection();CKEDITOR.env.webkit||(this.editorCODE
Hyper-Verbose Identifiers13 hits · 14 pts
SeverityFileLineSnippetContext
LOW…tatic/plugins/codemirror/mode/powershell/powershell.js284 function tokenHereStringInterpolation(stream, state) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js761 function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js1872 function defaultSpecialCharPlaceholder(ch) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js2433 function updateExternalMeasurement(cm, line) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js2609 function maybeUpdateRectForZooming(measure, rect) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js2619 function clearLineMeasurementCacheFor(lineView) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js2628 function clearLineMeasurementCache(cm) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js3342 function maybeUpdateLineNumberWidth(cm) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js4843 function selectionEventCanBeMerged(doc, origin, prev, sel) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js5044 function setSelectionReplaceHistory(doc, sel, options) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js5361 function makeChangeSingleDocInEditor(cm, change, spans) {CODE
LOW…/resources/static/plugins/codemirror/lib/codemirror.js5721 function adjustScrollWhenAboveVisible(cm, line, diff) {CODE
LOW…sources/static/plugins/fullscreen/jquery.fullscreen.js143 function installFullScreenHandlers()CODE
Fake / Example Data3 hits · 3 pts
SeverityFileLineSnippetContext
LOW…wer_components/ckeditor/plugins/image/dialogs/image.js35D+'"\x3e\x3cimg id\x3d"'+C+'" alt\x3d"" /\x3e\x3c/a\x3e'+(d.config.image_previewText||"Lorem ipsum dolor sit amet, conseCODE
LOW…wer_components/ckeditor/plugins/image/dialogs/image.js35D+'"\x3e\x3cimg id\x3d"'+C+'" alt\x3d"" /\x3e\x3c/a\x3e'+(d.config.image_previewText||"Lorem ipsum dolor sit amet, conseCODE
LOW…tatic/adminlte/bower_components/select2/select2.min.js2!function(n){"function"==typeof define&&define.amd?define(["jquery"],n):"object"==typeof module&&module.exports?module.eCODE