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  1. JDK
  2. JDK-4715772

Null-check eliminator must traverse exception handlers

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Details

    • Bug
    • Resolution: Fixed
    • P4
    • 1.4.0_04
    • 1.4.0, 1.4.1
    • hotspot
    • None
    • 04
    • generic, sparc
    • generic, solaris_8

    Backports

      Description

        A licensee (see comments for details) has isolated a bug in the null-check
        eliminator. Since exception handlers are not traversed during the dataflow
        walk, incorrect not-null results can be created for values which are assigned
        null values inside of exception handlers. This may cause a VM crash if such
        compiled code is ever executed and if the receiver is dereferenced at a point
        where the compiler assumed the receiver was non-null. A patch has been
        submitted.

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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-2056503 Null-check eliminator must traverse exception handlers

            • 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-2056504 Null-check eliminator must traverse exception handlers

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-4759909 jdk 1.4.0 client VM crashes

            • P1 - Blocks development and/or testing work, production could not run.
            • Closed

            Activity

              People

                never Tom Rodriguez
                kbr Kenneth Russell (Inactive)
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                Dates

                  Created:
                  Updated:
                  Resolved:
                  Imported:
                  Indexed: