src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp

*** 342,351 ****
--- 342,355 ----
        _adaptive_size = false;
        return;
      }
    }
  
+   if (FLAG_IS_CMDLINE(NewSize) && FLAG_IS_CMDLINE(MaxNewSize) && NewSize > MaxNewSize) {
+     vm_exit_during_initialization("Incompatible initial and maximum young gen sizes specified");
+   }
+ 
    if (FLAG_IS_CMDLINE(NewSize)) {
      _min_desired_young_length = MAX2((uint) (NewSize / HeapRegion::GrainBytes),
                                       1U);
      if (FLAG_IS_CMDLINE(MaxNewSize)) {
        _max_desired_young_length =