--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/MetaspaceWrapperObject.java	Thu Jun 02 15:25:22 2016 +0200
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/MetaspaceWrapperObject.java	Mon Jun 06 12:22:14 2016 -0700
@@ -23,7 +23,8 @@
 package jdk.vm.ci.hotspot;
 
 /**
- * A tag interface indicating that this type is a wrapper around a HotSpot metaspace object.
+ * A tag interface indicating that this type is a wrapper around a HotSpot metaspace object that
+ * requires GC interaction to keep alive.
  *
  * It would preferable if this were the base class containing the pointer but that would require
  * mixins since most of the wrapper types have complex supertype hierarchies.
@@ -31,4 +32,18 @@
 interface MetaspaceWrapperObject {
 
     long getMetaspacePointer();
+
+    /**
+     * Check if this object is properly registered for metadata tracking. All classes which
+     * implement this interface must be registered with the
+     * {@link HotSpotJVMCIMetaAccessContext#add} unless they are kept alive through other means.
+     * Currently the only type which doesn't require explicit registration is
+     * {@link HotSpotResolvedObjectTypeImpl} since it's kept alive by references to the
+     * {@link Class}.
+     *
+     * @return true if this object is properly registered for meta data tracking.
+     */
+    default boolean isRegistered() {
+        return HotSpotJVMCIRuntime.runtime().metaAccessContext.isRegistered(this);
+    }
 }