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  1. JDK
  2. JDK-8059269

FileHandler may throw NPE if pattern is a simple name and the lock file already exists

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Details

    • Bug
    • Resolution: Fixed
    • P4
    • 9
    • 8u40, 9
    • core-libs

    Backports

      Description

        This is a regression introduced by JDK-8048020 - which might happen in the uncommon case where: pattern is a simple name (not a full path), and the .lck file already exists on disk (and hasn't been created by another FileHandler in the same VM).

        In that case, we will check whether we have write permission in the directory in which the lck file is present. The catch is that if the file name is a simple name (not composed), then Path.getParentPath() will return null, and Files.isWritable() will throw NPE.

        Exception in thread "main" java.lang.NullPointerException
        at java.nio.file.Files.provider(Files.java:96)
        at java.nio.file.Files.isAccessible(Files.java:2454)
        at java.nio.file.Files.isWritable(Files.java:2520)
        at java.util.logging.FileHandler.openFiles(FileHandler.java:466)

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8059463 FileHandler may throw NPE if pattern is a simple name and the lock file already exists

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8063896 FileHandler may throw NPE if pattern is a simple name and the lock file already exists

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8070162 FileHandler may throw NPE if pattern is a simple name and the lock file already exists

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8084399 FileHandler may throw NPE if pattern is a simple name and the lock file already exists

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8048020 Regression on java.util.logging.FileHandler

            • P3 - Major loss of function.
            • Closed

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                dfuchs Daniel Fuchs
                dfuchs Daniel Fuchs
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                  Created:
                  Updated:
                  Resolved: