src/share/vm/runtime/deoptimization.cpp

rev 8847 : 8140482: Various minor code improvements (runtime)
Reviewed-by: dholmes, coleenp, sspitsyn, dsamersoff

*** 1859,1868 ****
--- 1859,1869 ----
  }
  //---------------------------format_trap_state---------------------------------
  // This is used for debugging and diagnostics, including LogFile output.
  const char* Deoptimization::format_trap_state(char* buf, size_t buflen,
                                                int trap_state) {
+   assert(buflen > 0, "sanity");
    DeoptReason reason      = trap_state_reason(trap_state);
    bool        recomp_flag = trap_state_is_recompiled(trap_state);
    // Re-encode the state from its decoded components.
    int decoded_state = 0;
    if (reason_is_recorded_per_bytecode(reason) || reason == Reason_many)