{"record":{"id":"1baaf0ed3f344910","repo":"apache/hadoop","slug":"unknown-type-1baaf0","errorCode":null,"errorMessage":"unknown type","messagePattern":"unknown type","errorType":"exception","errorClass":"RuntimeException","httpStatus":null,"severity":"error","filePath":"hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/typedbytes/TypedBytesWritableInput.java","lineNumber":138,"sourceCode":"      return readBoolean();\n    case INT:\n      return readVInt();\n    case LONG:\n      return readVLong();\n    case FLOAT:\n      return readFloat();\n    case DOUBLE:\n      return readDouble();\n    case STRING:\n      return readText();\n    case VECTOR:\n      return readArray();\n    case MAP:\n      return readMap();\n    case WRITABLE:\n      return readWritable();\n    default:\n      throw new RuntimeException(\"unknown type\");\n    }\n  }\n\n  public Class<? extends Writable> readType() throws IOException {\n    Type type = in.readType();\n    if (type == null) {\n      return null;\n    }\n    switch (type) {\n    case BYTES:\n      return BytesWritable.class;\n    case BYTE:\n      return ByteWritable.class;\n    case BOOL:\n      return BooleanWritable.class;\n    case INT:\n      return VIntWritable.class;\n    case LONG:","sourceCodeStart":120,"sourceCodeEnd":156,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/typedbytes/TypedBytesWritableInput.java#L120-L156","documentation":"Error \"unknown type\" thrown in apache/hadoop.","triggerScenarios":"TypedBytesWritableInput reads a typedbytes type code it cannot map to a writable value, indicating a corrupted or unexpected stream.","commonSituations":"See trigger scenarios.","solutions":["Check the typedbytes stream; an unrecognized type code indicates corrupt or misaligned input."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"2add9630210752f88ceb1bb74eb65e37bf41da8e","analyzedAt":"2026-08-22T19:55:07.957Z","schemaVersion":2},"datasetVersion":"2026-08-22T20:17:22.307Z"}