diff --git a/src/base/mutex.h b/src/base/mutex.h
index d6ae3dc..e7d2e97 100644
--- a/src/base/mutex.h
+++ b/src/base/mutex.h
@@ -247,7 +247,7 @@
   // Assert the current thread doesn't have exclusive access to the ReaderWriterMutex.
   void AssertNotExclusiveHeld(const Thread* self) {
     if (kDebugLocking) {
-      CHECK(!IsExclusiveHeld(self));
+      CHECK(!IsExclusiveHeld(self)) << *this;
     }
   }
   void AssertNotWriterHeld(const Thread* self) { AssertNotExclusiveHeld(self); }
diff --git a/src/class_linker.cc b/src/class_linker.cc
index 0c5c9da..5df99b0 100644
--- a/src/class_linker.cc
+++ b/src/class_linker.cc
@@ -728,10 +728,9 @@
   return NULL;
 }
 
-static const DexFile* FindDexFileInOatLocation(const std::string& dex_location,
-                                               uint32_t dex_location_checksum,
-                                               const std::string& oat_location)
-    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+const DexFile* ClassLinker::FindDexFileInOatLocation(const std::string& dex_location,
+                                                     uint32_t dex_location_checksum,
+                                                     const std::string& oat_location) {
   UniquePtr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL));
   if (oat_file.get() == NULL) {
     return NULL;
@@ -752,7 +751,7 @@
   if (oat_dex_file->GetDexFileLocationChecksum() != dex_location_checksum) {
     return NULL;
   }
-  runtime->GetClassLinker()->RegisterOatFile(*oat_file.release());
+  RegisterOatFileLocked(*oat_file.release());
   return oat_dex_file->OpenDexFile();
 }
 
diff --git a/src/class_linker.h b/src/class_linker.h
index eab1fcc..e0f297d 100644
--- a/src/class_linker.h
+++ b/src/class_linker.h
@@ -500,6 +500,12 @@
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, dex_lock_);
   const OatFile* FindOpenedOatFileFromOatLocation(const std::string& oat_location)
       SHARED_LOCKS_REQUIRED(dex_lock_);
+  const DexFile* FindDexFileInOatLocation(const std::string& dex_location,
+                                          uint32_t dex_location_checksum,
+                                          const std::string& oat_location)
+      EXCLUSIVE_LOCKS_REQUIRED(dex_lock_)
+      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+
   const DexFile* VerifyAndOpenDexFileFromOatFile(const OatFile* oat_file,
                                                  const std::string& dex_location,
                                                  uint32_t dex_location_checksum)