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  1. JDK
  2. JDK-8140241

(fc) Data transfer from FileChannel to itself causes hang in case of overlap

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    • b11
    • os_x
    • Verified

    Backports

      Description

        When using transferFrom() on a FileChannel to transfer data from one region of the file to another, the call hangs, if the two regions overlap.

        Test class is attached.

        This should either simply work correctly or lead to an exception.
        If an exception is thrown, the conditions under which it is thrown must be documented in the javadocs.

        I have tested this on OS X only.
        The problem may also occur on other platforms.

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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-8277640 (fc) Data transfer from FileChannel to itself causes hang in case of overlap

            • 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-8277713 (fc) Data transfer from FileChannel to itself causes hang in case of overlap

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

            Enhancement - null JDK-4722289 (fs) Add FileChannel.transfer(long srcPos, long dstPos, long count) method

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

            Commit Commit openjdk/jdk17u/c47e2330

            Commit Commit openjdk/jdk/428d5169

            Review Review openjdk/jdk17u/292

            Review Review openjdk/jdk/5061

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                bpb Brian Burkhalter
                hschreiber Hendrik Schreiber
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                  Created:
                  Updated:
                  Resolved: