src/share/vm/runtime/deoptimization.cpp

rev 4140 : 8162419: closed/com/oracle/jfr/runtime/TestVMInfoEvent.sh failing after JDK-8155968
Summary: Under error conditions, always return -1 and perform null termination regardless of the behavior of underlying vsnprintf() implementation.
Reviewed-by: dholmes, cjplummer

*** 1782,1793 ****
    } else {
      len = jio_snprintf(buf, buflen, "%s%s",
                         trap_reason_name(reason),
                         recomp_flag ? " recompiled" : "");
    }
-   if (len >= buflen)
-     buf[buflen-1] = '\0';
    return buf;
  }
  
  
  //--------------------------------statics--------------------------------------
--- 1782,1791 ----
*** 1850,1861 ****
                         reason, action);
    } else {
      len = jio_snprintf(buf, buflen, "reason='%s' action='%s' index='%d'",
                         reason, action, unloaded_class_index);
    }
-   if (len >= buflen)
-     buf[buflen-1] = '\0';
    return buf;
  }
  
  juint Deoptimization::_deoptimization_hist
          [Deoptimization::Reason_LIMIT]
--- 1848,1857 ----