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  1. Commons IO
  2. IO-340

The use of file.exists() is failure prone. Where file.exists() is checked, it should be replaced with the following dual check: exists = ( file.exists() || file.length()>0 )

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: 2.5, 3.x
    • Fix Version/s: None
    • Component/s: Utilities
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      Description

      The use of file.exists() is failure prone. In many cases the jvm can report that a file does not exist even when it does. This is due to the caching in the operating system.
      Since file.exists() is prone to report false values, a second check can and should be made to file.length()>0.

      Where file.exists() is checked, it should be replaced with the following dual check:

      A file more reliably exists if: file.exists() || file.length()>0

      Then if the file does not exist, file.length will be 0.

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            • Assignee:
              Unassigned
              Reporter:
              groovemeister Feeling Groovy
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