{"record":{"id":"a7648f806a2eb5cc","repo":"apache/flink","slug":"error-serializing-record-header-s","errorCode":null,"errorMessage":"Error serializing Record header: %s","messagePattern":"Error serializing Record header: (.+?)","errorType":"exception","errorClass":"RuntimeException","httpStatus":null,"severity":"error","filePath":"flink-core/src/main/java/org/apache/flink/types/Record.java","lineNumber":1103,"sourceCode":"                            mask |= (offsets[col] != NULL_INDICATOR_OFFSET) ? 0x1 : 0x0;\n                        }\n                        serializer.writeByte(mask);\n                    }\n\n                    // now the eight-bit chunks\n                    for (i = numFields >>> 3; i > 0; i--) {\n                        mask = 0;\n                        for (int k = 0; k < 8; k++, col--) {\n                            mask <<= 1;\n                            mask |= (offsets[col] != NULL_INDICATOR_OFFSET) ? 0x1 : 0x0;\n                        }\n                        serializer.writeByte(mask);\n                    }\n                }\n            }\n            serializer.writeValLenIntBackwards(numFields);\n        } catch (Exception e) {\n            throw new RuntimeException(\"Error serializing Record header: \" + e.getMessage(), e);\n        }\n    }\n\n    // --------------------------------------------------------------------------------------------\n    //                             Serialization\n    // --------------------------------------------------------------------------------------------\n\n    @Override\n    public void write(DataOutputView out) throws IOException {\n        // make sure everything is in a valid binary representation\n        updateBinaryRepresenation();\n\n        // write the length first, variably encoded, then the contents of the binary array\n        writeVarLengthInt(out, this.binaryLen);\n        out.write(this.binaryData, 0, this.binaryLen);\n    }\n\n    @Override","sourceCodeStart":1085,"sourceCodeEnd":1121,"githubUrl":"https://github.com/apache/flink/blob/2f3c205e9266cb30240eb7f4fdab15cad629a70f/flink-core/src/main/java/org/apache/flink/types/Record.java#L1085-L1121","documentation":"Error \"Error serializing Record header: %s\" thrown in apache/flink.","triggerScenarios":"Triggered at runtime when the operation fails because: Error serializing Record header: the reported value.","commonSituations":"Commonly caused by misconfiguration, missing dependencies or files, unsupported types or operations, or invalid user input leading to: Error serializing Record header: the reported value.","solutions":["Address the cause reported by the error message: Error serializing Record header: the reported value","Verify the inputs, configuration values, and classpath/dependency setup related to this operation, then retry."],"exampleFix":"Correct the condition described (\"Error serializing Record header: the reported value\") and rerun the job or command.","handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"2f3c205e9266cb30240eb7f4fdab15cad629a70f","analyzedAt":"2026-08-14T08:48:24.518Z","schemaVersion":2},"datasetVersion":"2026-08-14T10:17:34.591Z"}