src/share/vm/prims/whitebox.cpp

*** 90,99 ****
--- 90,108 ----
    ClassLoaderDataGraph::classes_do(&closure);
  
    return closure.found();
  WB_END
  
+ WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) {
+   CollectorPolicy * p = Universe::heap()->collector_policy();
+   gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap "
+     SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Min alignment "SIZE_FORMAT" Max alignment "SIZE_FORMAT,
+     p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(),
+     p->min_alignment(), p->max_alignment());
+ }
+ WB_END
+ 
  #if INCLUDE_ALL_GCS
  WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj))
    G1CollectedHeap* g1 = G1CollectedHeap::heap();
    oop result = JNIHandles::resolve(obj);
    const HeapRegion* hr = g1->heap_region_containing(result);
*** 331,340 ****
--- 340,350 ----
    {CC"isClassAlive0",      CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive      },
    {CC"parseCommandLine",
        CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;",
        (void*) &WB_ParseCommandLine
    },
+   {CC"printHeapSizes",     CC"()V",                   (void*)&WB_PrintHeapSizes    },
  #if INCLUDE_ALL_GCS
    {CC"g1InConcurrentMark", CC"()Z",                   (void*)&WB_G1InConcurrentMark},
    {CC"g1IsHumongous",      CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous     },
    {CC"g1NumFreeRegions",   CC"()J",                   (void*)&WB_G1NumFreeRegions  },
    {CC"g1RegionSize",       CC"()I",                   (void*)&WB_G1RegionSize      },