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  1. JDK
  2. JDK-8209960

-Xlog:jfr* doesn't work with the JFR parser

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    • jfr
    • b19

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      Description

        The JFR parser (ChunkParser.java) has been instrumented with log statement to debug parser issues, for instance, information about the chunk header or contents of the constant pool types.

        The functionality has however stopped working The reason is that the jdk.jfr.internal.JVM class has not been initialized, so the log levels are not registered in the VM.

        The dependency on the JVM class was removed from the jdk.jfr.internal.Logger so that files could be parsed on a JVM that doesn't support JFR. We should add back the dependency, but in case we get UnsatisfiedLinkError loading the JVM klass we should fall back to no logging.

        The workaround is to debug the parser and start a recording on command-line at the same time:

        java -Xlog:jfr+parser+system -XX:StartFlightRecording ..

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            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-8213369 -Xlog:jfr* doesn't work with the JFR parser

            • P3 - Major loss of function.
            • 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-8219238 -Xlog:jfr* doesn't work with the JFR parser

            • P3 - Major loss of function.
            • 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-8240413 -Xlog:jfr* doesn't work with the JFR parser

            • P3 - Major loss of function.
            • 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-8243879 -Xlog:jfr* doesn't work with the JFR parser

            • P3 - Major loss of function.
            • 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-8217923 -Xlog:jfr* doesn't work with the JFR parser

            • P3 - Major loss of function.
            • Closed
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8212825 jfr.dcmd log is not shown

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

            Enhancement - null JDK-8239140 Backport JFR to OpenJDK 8

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

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                egahlin Erik Gahlin
                egahlin Erik Gahlin
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                  Updated:
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