Rename nativeHoldsLock to holdsLock and make it work on current thread

The Java native method nativeHoldsLock has been renamed to match the
upstream OpenJDK 8u121-b13 and changed from an instance method on Thread
to a static method.

This makes the corresponding change to the native implementation of that
method.

Test: make checkbuild, flash, CtsLibcoreTestCases
Bug: 74379469
Change-Id: Ib9dedccd3014c01c148ff824764be319c2a7a123

1 files changed, 3 insertions, 4 deletions

diff --git a/runtime/native/java_lang_Thread.cc b/runtime/native/java_lang_Thread.cc
index 9edb0c21dd..a37a76f809 100644
--- a/runtime/native/java_lang_Thread.cc
+++ b/runtime/native/java_lang_Thread.cc
@@ -111,15 +111,14 @@ static jint Thread_nativeGetStatus(JNIEnv* env, jobject java_thread, jboolean ha
   return -1;  // Unreachable.
 }
 
-static jboolean Thread_nativeHoldsLock(JNIEnv* env, jobject java_thread, jobject java_object) {
+static jboolean Thread_holdsLock(JNIEnv* env, jclass, jobject java_object) {
   ScopedObjectAccess soa(env);
   ObjPtr<mirror::Object> object = soa.Decode<mirror::Object>(java_object);
   if (object == nullptr) {
     ThrowNullPointerException("object == null");
     return JNI_FALSE;
   }
-  MutexLock mu(soa.Self(), *Locks::thread_list_lock_);
-  Thread* thread = Thread::FromManagedThread(soa, java_thread);
+  Thread* thread = soa.Self();
   return thread->HoldsLock(object.Ptr());
 }
 
@@ -200,7 +199,7 @@ static JNINativeMethod gMethods[] = {
   FAST_NATIVE_METHOD(Thread, isInterrupted, "()Z"),
   NATIVE_METHOD(Thread, nativeCreate, "(Ljava/lang/Thread;JZ)V"),
   NATIVE_METHOD(Thread, nativeGetStatus, "(Z)I"),
-  NATIVE_METHOD(Thread, nativeHoldsLock, "(Ljava/lang/Object;)Z"),
+  NATIVE_METHOD(Thread, holdsLock, "(Ljava/lang/Object;)Z"),
   FAST_NATIVE_METHOD(Thread, nativeInterrupt, "()V"),
   NATIVE_METHOD(Thread, nativeSetName, "(Ljava/lang/String;)V"),
   NATIVE_METHOD(Thread, nativeSetPriority, "(I)V"),