{"record":{"id":"91faee341203adb5","repo":"perwendel/spark","slug":"resource-location-resourcelocation-is-neither","errorCode":null,"errorMessage":"Resource location [${resourceLocation}] is neither a URL not a well-formed file path","messagePattern":"Resource location \\[(.+?)\\] is neither a URL not a well-formed file path","errorType":"exception","errorClass":"FileNotFoundException","httpStatus":null,"severity":"error","filePath":"src/main/java/spark/utils/ResourceUtils.java","lineNumber":145,"sourceCode":"        if (resourceLocation.startsWith(CLASSPATH_URL_PREFIX)) {\n            String path = resourceLocation.substring(CLASSPATH_URL_PREFIX.length());\n            URL url = ClassUtils.getDefaultClassLoader().getResource(path);\n            if (url == null) {\n                String description = \"class path resource [\" + path + \"]\";\n                throw new FileNotFoundException(\n                        description + \" cannot be resolved to URL because it does not exist\");\n            }\n            return url;\n        }\n        try {\n            // try URL\n            return new URL(resourceLocation);\n        } catch (MalformedURLException ex) {\n            // no URL -> treat as file path\n            try {\n                return new File(resourceLocation).toURI().toURL();\n            } catch (MalformedURLException ex2) {\n                throw new FileNotFoundException(\"Resource location [\" + resourceLocation +\n                                                        \"] is neither a URL not a well-formed file path\");\n            }\n        }\n    }\n\n    /**\n     * Resolve the given resource location to a {@code java.io.File},\n     * i.e. to a file in the file system.\n     * <p>Does not check whether the file actually exists; simply returns\n     * the File that the given location would correspond to.\n     *\n     * @param resourceLocation the resource location to resolve: either a\n     *                         \"classpath:\" pseudo URL, a \"file:\" URL, or a plain file path\n     * @return a corresponding File object\n     * @throws FileNotFoundException if the resource cannot be resolved to\n     *                               a file in the file system\n     */\n    public static File getFile(String resourceLocation) throws FileNotFoundException {","sourceCodeStart":127,"sourceCodeEnd":163,"githubUrl":"https://github.com/perwendel/spark/blob/1973e402f5d4c1442ad34a1d38ed0758079f7773/src/main/java/spark/utils/ResourceUtils.java#L127-L163","documentation":"ResourceUtils.getURL first tries to interpret the location string as a URL; on MalformedURLException it falls back to treating it as a file path. If both conversions fail — the string is neither a well-formed URL nor a usable file path — it throws FileNotFoundException stating the resource location is 'neither a URL not a well-formed file path'.","triggerScenarios":"Calling getURL with a malformed string such as \"htp:/bad\", \"file://C:temp\" (invalid for toURI().toURL()), a string with illegal URI characters (spaces/control chars not encoded), or a location with a wrong scheme prefix that is neither classpath:, http(s), nor a valid path.","commonSituations":"Windows paths with backslashes or drive letters combined with a file:// prefix the URI parser rejects; unencoded spaces in file paths; config values concatenated incorrectly producing invalid URLs; typos in protocol names.","solutions":["Fix the location string: either a full valid URL (e.g. http://..., file:/absolute/path) or a valid file path.","Encode special characters (spaces -> %20) or drop an invalid scheme and pass the plain absolute file path.","On Windows use forward slashes or the file:/// form with proper drive-letter syntax (file:/C:/temp/x.txt).","Validate the location with new URL(...) or new File(...).toURI().toURL() in a test before wiring it into config."],"exampleFix":"// before\nURL url = ResourceUtils.getURL(\"file://C:\\\\temp\\\\my file.txt\"); // malformed\n\n// after\nURL url = ResourceUtils.getURL(\"file:/C:/temp/my%20file.txt\");","handlingStrategy":"validation","validationCode":"try {\n    new URL(location);\n} catch (MalformedURLException e) {\n    try { new File(location).toURI().toURL(); } catch (MalformedURLException e2) {\n        throw new IllegalStateException(\"Location is neither URL nor valid file path: \" + location);\n    }\n}","typeGuard":null,"tryCatchPattern":"try {\n    URL url = ResourceUtils.getURL(location);\n} catch (FileNotFoundException e) {\n    log.error(\"Malformed resource location: {}\", location);\n}","preventionTips":["Encode spaces and special characters in paths (%20).","On Windows prefer forward slashes and proper file:/ URLs.","Validate configured locations at startup with a fail-fast check."],"tags":["url","file-path","malformed","spark"],"backgroundTag":"invalid-url-format","analyzedSha":"1973e402f5d4c1442ad34a1d38ed0758079f7773","analyzedAt":"2026-09-10T14:38:22.866Z","contentChangedAt":"2026-09-10T14:38:22.866Z","schemaVersion":2},"datasetVersion":"2026-09-16T04:17:20.429Z"}