8026041: JVM crashes with assert "assert(is_updated()) failed: must not be clear" with -XX:+PrintGCApplicationConcurrentTime in -Xcomp mode Summary: Prior to printing the time interval in RuntimeService::record_safepoint_begin(), check first that VM initialization is complete. Reviewed-by: coleenp, dholmes, sla, ctornqvi Contributed-by: lois.foltan@oracle.com

// I can cast any old thing I want to this type object:
public class You_Have_Been_P0wned {
  // Make a bunch of int-fields so I can peek & poke it
  int _a;
  int _b;
  int _c;
  int _d;

}