src/hotspot/share/classfile/systemDictionaryShared.cpp

@@ -62,10 +62,11 @@
  #include "memory/metaspaceClosure.hpp"
  #include "memory/oopFactory.hpp"
  #include "memory/resourceArea.hpp"
  #include "memory/universe.hpp"
  #include "oops/compressedKlass.inline.hpp"
+ #include "oops/fieldStreams.inline.hpp"
  #include "oops/instanceKlass.hpp"
  #include "oops/klass.inline.hpp"
  #include "oops/objArrayKlass.hpp"
  #include "oops/objArrayOop.inline.hpp"
  #include "oops/oop.inline.hpp"

@@ -296,10 +297,22 @@
            add_candidate(InstanceKlass::cast(constraint_bottom_class));
          }
          return true; // Keep iterating.
        });
      }
+ 
+     // Inline fields need to have their layouts preserved between dumptime and runtime.
+     // To ensure this, the types of the fields must be stored in the archive along with
+     // the field holder.
+     if (k->has_inlined_fields() || k->has_null_restricted_static_fields()) {
+       for (AllFieldStream fs(k); !fs.done(); fs.next()) {
+         if (fs.is_flat() || fs.is_null_free_inline_type()) {
+           InlineKlass* field_klass = k->get_inline_type_field_klass(fs.index());
+           add_candidate(InstanceKlass::cast(field_klass));
+         }
+       }
+     }
    }
  
  public:
    ExclusionCheckCandidates(InstanceKlass* k) {
      add_candidate(k);

@@ -518,10 +531,24 @@
        // At least one verification constraint class has been excluded
        return true;
      }
    }
  
+   // If any of the null restricted or flat field types are excluded, the current
+   // klass must be excluded as well, otherwise there is no guarantee that the
+   // field layouts will be consistent at runtime.
+   if (k->has_inlined_fields() || k->has_null_restricted_static_fields()) {
+     for (AllFieldStream fs(k); !fs.done(); fs.next()) {
+       if (fs.is_flat() || fs.is_null_free_inline_type()) {
+         InlineKlass* field_klass = k->get_inline_type_field_klass(fs.index());
+         if (is_dependency_excluded(k, InstanceKlass::cast(field_klass), "inline field type")) {
+           return true;
+         }
+       }
+     }
+   }
+ 
    return false;
  }
  
  bool SystemDictionaryShared::is_dependency_excluded(InstanceKlass* k, InstanceKlass* dependency, const char* type) {
    if (CDSConfig::is_dumping_dynamic_archive() && AOTMetaspace::in_aot_cache(dependency)) {