src/hotspot/share/memory/metaspace.cpp

*** 3322,3331 ****
--- 3322,3349 ----
    MinMetaspaceExpansion = align_down_bounded(MinMetaspaceExpansion, _commit_alignment);
    MaxMetaspaceExpansion = align_down_bounded(MaxMetaspaceExpansion, _commit_alignment);
  
    CompressedClassSpaceSize = align_down_bounded(CompressedClassSpaceSize, _reserve_alignment);
    set_compressed_class_space_size(CompressedClassSpaceSize);
+ 
+   // Initial virtual space size will be calculated at global_initialize()
+   size_t min_metaspace_sz =
+        VIRTUALSPACEMULTIPLIER * InitialBootClassLoaderMetaspaceSize;
+   if (UseCompressedClassPointers) {
+     if ((min_metaspace_sz + CompressedClassSpaceSize) >  MaxMetaspaceSize) {
+       if (min_metaspace_sz >= MaxMetaspaceSize) {
+         vm_exit_during_initialization("MaxMetaspaceSize is too small.");
+       } else {
+         FLAG_SET_ERGO(size_t, CompressedClassSpaceSize,
+                        MaxMetaspaceSize - min_metaspace_sz);
+       }
+     }
+   } else if (min_metaspace_sz >= MaxMetaspaceSize) {
+     FLAG_SET_ERGO(size_t, InitialBootClassLoaderMetaspaceSize,
+                     min_metaspace_sz);
+   }
+ 
  }
  
  void Metaspace::global_initialize() {
    MetaspaceGC::initialize();