src/share/vm/gc_implementation/g1/vm_operations_g1.cpp

rev 7780 : imported patch 8072621
rev 7781 : imported patch 8066771
rev 7782 : [mq]: review

@@ -36,11 +36,11 @@
 
 VM_G1CollectForAllocation::VM_G1CollectForAllocation(uint gc_count_before,
                                                      size_t word_size)
   : VM_G1OperationWithAllocRequest(gc_count_before, word_size,
                                    GCCause::_allocation_failure) {
-  guarantee(word_size > 0, "an allocation should always be requested");
+  guarantee(word_size != 0, "An allocation should always be requested with this operation.");
 }
 
 void VM_G1CollectForAllocation::doit() {
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
   GCCauseSetter x(g1h, _gc_cause);