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  1. Lucene - Core
  2. LUCENE-2953

PriorityQueue is inheriently broken if subclass attempts to use "heap" w/generic T bound to anything other then "Object"

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 3.2, 4.0-ALPHA
    • None
    • None
    • New, Patch Available

    Description

      as discovered in SOLR-2410 the fact that the protected "heap" variable in PriorityQueue is initialized using an Object[] makes it impossible for subclasses of PriorityQueue to exist and access the "heap" array unless they bind the generic to Object.

      Attachments

        1. LUCENE-2953.patch
          1 kB
          Chris M. Hostetter
        2. BenchmarkArrayAccess.java
          3 kB
          Dawid Weiss
        3. LUCENE-2953.patch
          18 kB
          Uwe Schindler

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. SOLR-2410 ConcurrentLRUCache can throw class cast exception

          • Major - Major loss of function.
          • Closed

          Activity

            People

              uschindler Uwe Schindler
              hossman Chris M. Hostetter
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              Dates

                Created:
                Updated:
                Resolved: