{"record":{"id":"9684931402c3a7b3","repo":"apache/flink","slug":"url-is-invalid-this-should-not-happen-968493","errorCode":null,"errorMessage":"URL is invalid. This should not happen.","messagePattern":"URL is invalid\\. This should not happen\\.","errorType":"exception","errorClass":"RuntimeException","httpStatus":null,"severity":"warning","filePath":"flink-clients/src/main/java/org/apache/flink/client/program/PackagedProgramUtils.java","lineNumber":281,"sourceCode":"                            }\n                            return result;\n                        }\n                    });\n        } catch (IOException e) {\n            throw new RuntimeException(\n                    \"Exception encountered during finding the flink-python jar. This should not happen.\",\n                    e);\n        }\n\n        if (optJarPath.size() != 1) {\n            throw new RuntimeException(\n                    String.format(\"Found \" + optJarPath.size() + \" %s jar.\", jarName));\n        }\n\n        try {\n            return optJarPath.get(0).toUri().toURL();\n        } catch (MalformedURLException e) {\n            throw new RuntimeException(\"URL is invalid. This should not happen.\", e);\n        }\n    }\n}\n","sourceCodeStart":263,"sourceCodeEnd":285,"githubUrl":"https://github.com/apache/flink/blob/2f3c205e9266cb30240eb7f4fdab15cad629a70f/flink-clients/src/main/java/org/apache/flink/client/program/PackagedProgramUtils.java#L263-L285","documentation":"Thrown when the located jar file's Path cannot be converted to a URL (MalformedURLException) after successfully finding it in the opt directory. This is considered an internal error ('should not happen') because a valid filesystem path should always produce a valid URL.","triggerScenarios":"optJarPath.get(0).toUri().toURL() throws MalformedURLException. This would only occur if the discovered file path is somehow not convertible to a URI — extremely rare and indicates a filesystem or path anomaly.","commonSituations":"Exotic filesystem (e.g., network mount with unusual path encoding), a path with characters that break toUri(), or a JDK bug in URI handling. Practically, this should never fire under normal conditions.","solutions":["Check the discovered file path for unusual characters or encoding issues.","If on a network filesystem, try copying the jar to a local directory.","Report as a bug if the path appears normal — this is a defensive guard against an unexpected state.","Ensure the JDK version is not affected by known URI conversion bugs."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"try {\n    // code that triggers getOptJar\n} catch (RuntimeException e) {\n    if (e.getMessage().contains(\"URL is invalid\")) {\n        // report as bug; check for unusual path characters\n    }\n    throw e;\n}","preventionTips":["Ensure FLINK_OPT_DIR contains only paths with standard filesystem-safe characters.","Avoid network filesystems with non-standard path encodings for the opt/ directory."],"tags":["python","packaged-program-utils","url","uri","internal"],"backgroundTag":null,"analyzedSha":"2f3c205e9266cb30240eb7f4fdab15cad629a70f","analyzedAt":"2026-08-14T08:48:24.518Z","schemaVersion":2},"datasetVersion":"2026-08-14T10:17:34.591Z"}