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  1. JDK
  2. JDK-8233343

Deprecate -XX:+CriticalJNINatives flag which implements JavaCritical native functions

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Details

    • Enhancement
    • Resolution: Fixed
    • P3
    • 16
    • 14, 16
    • hotspot
    • b21

    Description

      This flag allows native functions to access Java heap primitive arrays as if they are in Java mode. This was added for an optimization to specific sparc crypto functions, hence the restricted API.

      We should deprecate the flag and later remove this support when project Panama is available.

        product(bool, CriticalJNINatives, true, \
                "Check for critical JNI entry points") \
                                                                                  \
        notproduct(bool, StressCriticalJNINatives, false, \
                "Exercise register saving code in critical natives") \
                                                                                  \
      Also remove StressCriticalJNINatives.

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          csr for

          CSR - null JDK-8254694 Deprecate -XX:+CriticalJNINatives flag which implements JavaCritical native functions

          • P3 - Major loss of function.
          • Closed
          relates to

          Enhancement - null JDK-7013347 allow crypto functions to be called inline to enhance performance

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

          Enhancement - null JDK-8254693 Add Panama feature to pass heap segments to native code

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

          Enhancement - null JDK-8258192 Obsolete the CriticalJNINatives flag

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

          Enhancement - null JDK-8272838 Move CriticalJNI tests out of tier1

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

          Enhancement - null JDK-8199919 Deprecate JNI critical APIs

          • P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8256746 gc/CriticalNativeArgs.java fails without -XX:-CriticalJNINatives

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

          Enhancement - null JDK-8238861 Remove suspend_flag

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

          Enhancement - null JDK-8229895 Avoid GC lock when no array parameters are passed to critical native

          • P3 - Major loss of function.
          • Resolved

          JEP - Java Enhancement Proposal JDK-8231554 JEP 362: Deprecate the Solaris and SPARC Ports

          • P3 - Major loss of function.
          • Closed

          Enhancement - null JDK-8200388 AArch64: Critical native support not fully implemented

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

          Commit Commit openjdk/jdk/56ea490f

          Review Review openjdk/jdk/764

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              coleenp Coleen Phillimore
              coleenp Coleen Phillimore
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              Dates

                Created:
                Updated:
                Resolved: