66   friend class JfrNativeSamplerCallback;

    66   friend class JfrNativeSamplerCallback;

    67   friend class JfrStackTraceRepository;

    67   friend class JfrStackTraceRepository;

    68   friend class ObjectSampleCheckpoint;

    68   friend class ObjectSampleCheckpoint;

    69   friend class ObjectSampler;

    69   friend class ObjectSampler;

    70   friend class OSThreadSampler;

    70   friend class OSThreadSampler;

    72   friend class StackTraceResolver;

    71   friend class StackTraceResolver;

    74 

    72 

    75  private:

    73  private:

    76   const JfrStackTrace* _next;

    74   const JfrStackTrace* _next;

    77   JfrStackFrame* _frames;

    75   JfrStackFrame* _frames;

    78   traceid _id;

    76   traceid _id;