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  1. Commons VFS
  2. VFS-480

[VFS] SoftRefFilesCache Doesn't Ever Clear Cache

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 2.0
    • 2.1
    • None

    Description

      The SoftRefFilesCache doesn't ever clear its cache. I found this out when I notice my JVM was sucking up hundreds of megs as it load, processed, and unloaded, thousands of files.

      I have attached an example program that demonstrates the problem with SoftRefFilesCache.java#startThread(). The thread is never actually launched. I have only tried it on Java 1.7. Basically, I am trying to demonstrate that calling AtomicReference#compareAndSet never returns true when "expected" is a null value. So what happens is that the call returns false, the loop is re-entered, newThread gets blown away, the thread is found, and the loop exits, so the thread is never launched. I'm using VFS in a singleton fashion. Well, I was using it before this issue.

      Attachments

        1. AtomicRefThreadTest.java
          0.9 kB
          David Mollitor

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. VFS-548 SoftRefReleaseThread might leak

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. VFS-548 SoftRefReleaseThread might leak

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            People

              b.eckenfels Bernd Eckenfels
              belugabehr David Mollitor
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              Dates

                Created:
                Updated:
                Resolved: