diff --git a/runtime/lambda/closure.h b/runtime/lambda/closure.h
index 60d117e..31ff194 100644
--- a/runtime/lambda/closure.h
+++ b/runtime/lambda/closure.h
@@ -49,6 +49,19 @@
   // The target_size must be at least as large as GetSize().
   void CopyTo(void* target, size_t target_size) const;
 
+  // Get the target method, i.e. the method that will be dispatched into with invoke-lambda.
+  ArtMethod* GetTargetMethod() const;
+
+  // Calculates the hash code. Value is recomputed each time.
+  uint32_t GetHashCode() const SHARED_REQUIRES(Locks::mutator_lock_);
+
+  // Is this the same closure as other? e.g. same target method, same variables captured.
+  //
+  // Determines whether the two Closures are interchangeable instances.
+  // Does *not* call Object#equals recursively. If two Closures compare ReferenceEquals true that
+  // means that they are interchangeable values (usually for the purpose of boxing/unboxing).
+  bool ReferenceEquals(const Closure* other) const SHARED_REQUIRES(Locks::mutator_lock_);
+
   // How many variables were captured?
   size_t GetNumberOfCapturedVariables() const;