diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/java.desktop/macosx/native/libawt_lwawt/awt/JavaAccessibilityAction.m
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/macosx/native/libawt_lwawt/awt/JavaAccessibilityAction.m	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#import "JavaAccessibilityAction.h"
+#import "JavaAccessibilityUtilities.h"
+
+#import "ThreadUtilities.h"
+
+
+@implementation JavaAxAction
+
+- (id)initWithEnv:(JNIEnv *)env withAccessibleAction:(jobject)accessibleAction withIndex:(jint)index withComponent:(jobject)component
+{
+    self = [super init];
+    if (self) {
+        fAccessibleAction = JNFNewWeakGlobalRef(env, accessibleAction);
+        fIndex = index;
+        fComponent = JNFNewWeakGlobalRef(env, component);
+    }
+    return self;
+}
+
+- (void)dealloc
+{
+    JNIEnv *env = [ThreadUtilities getJNIEnvUncached];
+
+    JNFDeleteWeakGlobalRef(env, fAccessibleAction);
+    fAccessibleAction = NULL;
+
+    JNFDeleteWeakGlobalRef(env, fComponent);
+    fComponent = NULL;
+
+    [super dealloc];
+}
+
+- (NSString *)getDescription
+{
+    static JNF_STATIC_MEMBER_CACHE(jm_getAccessibleActionDescription, sjc_CAccessibility, "getAccessibleActionDescription", "(Ljavax/accessibility/AccessibleAction;ILjava/awt/Component;)Ljava/lang/String;");
+
+    JNIEnv* env = [ThreadUtilities getJNIEnv];
+
+    jobject fCompLocal = (*env)->NewLocalRef(env, fComponent);
+    if ((*env)->IsSameObject(env, fCompLocal, NULL)) {
+        return nil;
+    }
+    NSString *str = nil;
+    jstring jstr = JNFCallStaticObjectMethod( env,
+                                              jm_getAccessibleActionDescription,
+                                              fAccessibleAction,
+                                              fIndex,
+                                              fCompLocal );
+    if (jstr != NULL) {
+        str = JNFJavaToNSString(env, jstr); // AWT_THREADING Safe (AWTRunLoopMode)
+        (*env)->DeleteLocalRef(env, jstr);
+    }
+    (*env)->DeleteLocalRef(env, fCompLocal);
+    return str;
+}
+
+- (void)perform
+{
+    static JNF_STATIC_MEMBER_CACHE(jm_doAccessibleAction, sjc_CAccessibility, "doAccessibleAction", "(Ljavax/accessibility/AccessibleAction;ILjava/awt/Component;)V");
+
+    JNIEnv* env = [ThreadUtilities getJNIEnv];
+
+    JNFCallStaticVoidMethod(env, jm_doAccessibleAction, fAccessibleAction, fIndex, fComponent); // AWT_THREADING Safe (AWTRunLoopMode)
+}
+
+@end
+
+
+@implementation TabGroupAction
+
+- (id)initWithEnv:(JNIEnv *)env withTabGroup:(jobject)tabGroup withIndex:(jint)index withComponent:(jobject)component
+{
+    self = [super init];
+    if (self) {
+        fTabGroup = JNFNewWeakGlobalRef(env, tabGroup);
+        fIndex = index;
+        fComponent = JNFNewWeakGlobalRef(env, component);
+    }
+    return self;
+}
+
+- (void)dealloc
+{
+    JNIEnv *env = [ThreadUtilities getJNIEnvUncached];
+
+    JNFDeleteWeakGlobalRef(env, fTabGroup);
+    fTabGroup = NULL;
+
+    JNFDeleteWeakGlobalRef(env, fComponent);
+    fComponent = NULL;
+
+    [super dealloc];
+}
+
+- (NSString *)getDescription
+{
+    return @"click";
+}
+
+- (void)perform
+{
+    JNIEnv* env = [ThreadUtilities getJNIEnv];
+
+    setAxContextSelection(env, fTabGroup, fIndex, fComponent);
+}
+
+@end