{"record":{"id":"61d19a495a779300","repo":"apache/hadoop","slug":"filters-cannot-be-or-ed-61d19a","errorCode":null,"errorMessage":"filters cannot be or-ed","messagePattern":"filters cannot be or-ed","errorType":"exception","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/bloom/CountingBloomFilter.java","lineNumber":252,"sourceCode":"      return res;\n    } else {\n      return 0;\n    }\n  }\n\n  @Override\n  public void not() {\n    throw new UnsupportedOperationException(\"not() is undefined for \"\n        + this.getClass().getName());\n  }\n\n  @Override\n  public void or(Filter filter) {\n    if(filter == null\n        || !(filter instanceof CountingBloomFilter)\n        || filter.vectorSize != this.vectorSize\n        || filter.nbHash != this.nbHash) {\n      throw new IllegalArgumentException(\"filters cannot be or-ed\");\n    }\n\n    CountingBloomFilter cbf = (CountingBloomFilter)filter;\n\n    int sizeInWords = buckets2words(vectorSize);\n    for(int i = 0; i < sizeInWords; i++) {\n      this.buckets[i] |= cbf.buckets[i];\n    }\n  }\n\n  @Override\n  public void xor(Filter filter) {\n    throw new UnsupportedOperationException(\"xor() is undefined for \"\n        + this.getClass().getName());\n  }\n\n  @Override\n  public String toString() {","sourceCodeStart":234,"sourceCodeEnd":270,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/bloom/CountingBloomFilter.java#L234-L270","documentation":"Error \"filters cannot be or-ed\" thrown in apache/hadoop.","triggerScenarios":"Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/bloom/CountingBloomFilter.java:252 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["or() requires another CountingBloomFilter with identical size and hash parameters. Pass a compatible CountingBloomFilter instance."],"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"}