{"record":{"id":"c15da3a50cb9c9cc","repo":"apache/hadoop","slug":"filters-cannot-be-xor-ed-c15da3","errorCode":null,"errorMessage":"filters cannot be xor-ed","messagePattern":"filters cannot be xor-ed","errorType":"validation","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/bloom/DynamicBloomFilter.java","lineNumber":222,"sourceCode":"    }\n\n    DynamicBloomFilter dbf = (DynamicBloomFilter)filter;\n\n    if (dbf.matrix.length != this.matrix.length || dbf.nr != this.nr) {\n      throw new IllegalArgumentException(\"filters cannot be or-ed\");\n    }\n    for (int i = 0; i < matrix.length; i++) {\n      matrix[i].or(dbf.matrix[i]);\n    }\n  }\n\n  @Override\n  public void xor(Filter filter) {\n    if (filter == null\n        || !(filter instanceof DynamicBloomFilter)\n        || filter.vectorSize != this.vectorSize\n        || filter.nbHash != this.nbHash) {\n      throw new IllegalArgumentException(\"filters cannot be xor-ed\");\n    }\n    DynamicBloomFilter dbf = (DynamicBloomFilter)filter;\n\n    if (dbf.matrix.length != this.matrix.length || dbf.nr != this.nr) {\n      throw new IllegalArgumentException(\"filters cannot be xor-ed\");\n    }\n\n    for(int i = 0; i<matrix.length; i++) {\n        matrix[i].xor(dbf.matrix[i]);\n    }\n  }\n\n  @Override\n  public String toString() {\n    StringBuilder res = new StringBuilder();\n\n    for (int i = 0; i < matrix.length; i++) {\n      res.append(matrix[i])","sourceCodeStart":204,"sourceCodeEnd":240,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/bloom/DynamicBloomFilter.java#L204-L240","documentation":"Error \"filters cannot be xor-ed\" thrown in apache/hadoop.","triggerScenarios":"Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/bloom/DynamicBloomFilter.java:222 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["xor() requires another DynamicBloomFilter with matching configuration. Pass a compatible filter of the same type and size."],"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":"2026-08-23T01:17:44.959Z"}