[a11y] Separate base from JavaComponentAccessibility which doesn't depend on legacy a11y

- Create JavaElementAccessibility from the base
- Create JavaListAccessibility and inherit from JavaElementAccessibility
- Adopt NSAccessibilityList protocol (from new a11y), based on investigations by Artem Semenov

src/java.desktop/macosx/native/libawt_lwawt/awt/JavaComponentAccessibility.h

@@ -25,56 +25,13 @@
 
 #include "jni.h"
 
+#import "JavaElementAccessibility.h"
+
 #import <AppKit/AppKit.h>
 
-//#define JAVA_AX_DEBUG 1
-//#define JAVA_AX_NO_IGNORES 1
-//#define JAVA_AX_DEBUG_PARMS 1
-
-
-@interface JavaComponentAccessibility : NSObject {
-    NSView *fView;
-    NSObject *fParent;
-
-    NSString *fNSRole;
-    NSString *fJavaRole;
-
-    jint fIndex;
-    jobject fAccessible;
-    jobject fComponent;
-
-    NSMutableDictionary *fActions;
-    NSObject *fActionsLOCK;
+@interface JavaComponentAccessibility : JavaElementAccessibility {
 }
 
-- (id)initWithParent:(NSObject*)parent withEnv:(JNIEnv *)env withAccessible:(jobject)accessible withIndex:(jint)index withView:(NSView *)view withJavaRole:(NSString *)javaRole;
-- (void)unregisterFromCocoaAXSystem;
-- (void)postValueChanged;
-- (void)postSelectedTextChanged;
-- (void)postSelectionChanged;
-- (BOOL)isEqual:(id)anObject;
-- (BOOL)isAccessibleWithEnv:(JNIEnv *)env forAccessible:(jobject)accessible;
-
-+ (void)postFocusChanged:(id)message;
-
-+ (NSArray*)childrenOfParent:(JavaComponentAccessibility*)parent withEnv:(JNIEnv *)env withChildrenCode:(NSInteger)whichChildren allowIgnored:(BOOL)allowIgnored;
-+ (JavaComponentAccessibility *) createWithParent:(JavaComponentAccessibility *)parent accessible:(jobject)jaccessible role:(NSString *)javaRole index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view;
-+ (JavaComponentAccessibility *) createWithAccessible:(jobject)jaccessible role:(NSString *)role index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view;
-+ (JavaComponentAccessibility *) createWithAccessible:(jobject)jaccessible withEnv:(JNIEnv *)env withView:(NSView *)view;
-
-- (NSDictionary*)getActions:(JNIEnv *)env;
-- (void)getActionsWithEnv:(JNIEnv *)env;
-
-- (jobject)axContextWithEnv:(JNIEnv *)env;
-- (NSView*)view;
-- (NSWindow*)window;
-- (id)parent;
-- (NSString *)javaRole;
-- (BOOL)isMenu;
-- (BOOL)isSelected:(JNIEnv *)env;
-- (BOOL)isSelectable:(JNIEnv *)env;
-- (BOOL)isVisible:(JNIEnv *)env;
-
 // attribute names
 - (NSArray *)initializeAttributeNamesWithEnv:(JNIEnv *)env;
 - (NSArray *)accessibilityAttributeNames;
@@ -138,8 +95,44 @@
 - (NSString *)accessibilityActionDescription:(NSString *)action;
 - (void)accessibilityPerformAction:(NSString *)action;
 
-- (BOOL)accessibilityIsIgnored;
-- (id)accessibilityHitTest:(NSPoint)point withEnv:(JNIEnv *)env;
-- (id)accessibilityFocusedUIElement;
+@end
+
+@interface TabGroupAccessibility : JavaComponentAccessibility {
+    NSInteger _numTabs;
+}
+
+- (id)currentTabWithEnv:(JNIEnv *)env withAxContext:(jobject)axContext;
+- (NSArray *)tabControlsWithEnv:(JNIEnv *)env withTabGroupAxContext:(jobject)axContext withTabCode:(NSInteger)whichTabs allowIgnored:(BOOL)allowIgnored;
+- (NSArray *)contentsWithEnv:(JNIEnv *)env withTabGroupAxContext:(jobject)axContext withTabCode:(NSInteger)whichTabs allowIgnored:(BOOL)allowIgnored;
+- (NSArray *)initializeAttributeNamesWithEnv:(JNIEnv *)env;
+
+- (NSArray *)accessibilityArrayAttributeValues:(NSString *)attribute index:(NSUInteger)index maxCount:(NSUInteger)maxCount;
+- (NSArray *)accessibilityChildrenAttribute;
+- (id) accessibilityTabsAttribute;
+- (BOOL)accessibilityIsTabsAttributeSettable;
+- (NSArray *)accessibilityContentsAttribute;
+- (BOOL)accessibilityIsContentsAttributeSettable;
+- (id) accessibilityValueAttribute;
 
 @end
+
+@interface TabGroupControlAccessibility : JavaComponentAccessibility {
+    jobject fTabGroupAxContext;
+}
+- (id)initWithParent:(NSObject *)parent withEnv:(JNIEnv *)env withAccessible:(jobject)accessible withIndex:(jint)index withTabGroup:(jobject)tabGroup withView:(NSView *)view withJavaRole:(NSString *)javaRole;
+- (jobject)tabGroup;
+- (void)getActionsWithEnv:(JNIEnv *)env;
+
+- (id)accessibilityValueAttribute;
+@end
+
+@interface ScrollAreaAccessibility : JavaComponentAccessibility {
+}
+- (NSArray *)initializeAttributeNamesWithEnv:(JNIEnv *)env;
+- (NSArray *)accessibilityContentsAttribute;
+- (BOOL)accessibilityIsContentsAttributeSettable;
+- (id)accessibilityVerticalScrollBarAttribute;
+- (BOOL)accessibilityIsVerticalScrollBarAttributeSettable;
+- (id)accessibilityHorizontalScrollBarAttribute;
+- (BOOL)accessibilityIsHorizontalScrollBarAttributeSettable;
+@end

src/java.desktop/macosx/native/libawt_lwawt/awt/JavaComponentAccessibility.m

@@ -46,27 +46,11 @@
 #import "ThreadUtilities.h"
 #import "AWTView.h"
 
-
-// these constants are duplicated in CAccessibility.java
-#define JAVA_AX_ALL_CHILDREN (-1)
-#define JAVA_AX_SELECTED_CHILDREN (-2)
-#define JAVA_AX_VISIBLE_CHILDREN (-3)
-// If the value is >=0, it's an index
-
-static JNF_STATIC_MEMBER_CACHE(jm_getChildrenAndRoles, sjc_CAccessibility, "getChildrenAndRoles", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;IZ)[Ljava/lang/Object;");
 static JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleComponent, sjc_CAccessibility, "getAccessibleComponent", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Ljavax/accessibility/AccessibleComponent;");
 static JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleValue, sjc_CAccessibility, "getAccessibleValue", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Ljavax/accessibility/AccessibleValue;");
 static JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleName, sjc_CAccessibility, "getAccessibleName", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Ljava/lang/String;");
 static JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleDescription, sjc_CAccessibility, "getAccessibleDescription", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Ljava/lang/String;");
 static JNF_STATIC_MEMBER_CACHE(sjm_isFocusTraversable, sjc_CAccessibility, "isFocusTraversable", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Z");
-static JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleIndexInParent, sjc_CAccessibility, "getAccessibleIndexInParent", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)I");
-
-static JNF_CLASS_CACHE(sjc_CAccessible, "sun/lwawt/macosx/CAccessible");
-
-static JNF_MEMBER_CACHE(jf_ptr, sjc_CAccessible, "ptr", "J");
-static JNF_STATIC_MEMBER_CACHE(sjm_getCAccessible, sjc_CAccessible, "getCAccessible", "(Ljavax/accessibility/Accessible;)Lsun/lwawt/macosx/CAccessible;");
-
-static jobject sAccessibilityClass = NULL;
 
 // sAttributeNamesForRoleCache holds the names of the attributes to which each java
 // AccessibleRole responds (see AccessibleRole.java).
@@ -74,331 +58,14 @@ static jobject sAccessibilityClass = NULL;
 static NSMutableDictionary *sAttributeNamesForRoleCache = nil;
 static NSObject *sAttributeNamesLOCK = nil;
 
-@interface TabGroupAccessibility : JavaComponentAccessibility {
-    NSInteger _numTabs;
-}
-
-- (id)currentTabWithEnv:(JNIEnv *)env withAxContext:(jobject)axContext;
-- (NSArray *)tabControlsWithEnv:(JNIEnv *)env withTabGroupAxContext:(jobject)axContext withTabCode:(NSInteger)whichTabs allowIgnored:(BOOL)allowIgnored;
-- (NSArray *)contentsWithEnv:(JNIEnv *)env withTabGroupAxContext:(jobject)axContext withTabCode:(NSInteger)whichTabs allowIgnored:(BOOL)allowIgnored;
-- (NSArray *)initializeAttributeNamesWithEnv:(JNIEnv *)env;
-
-- (NSArray *)accessibilityArrayAttributeValues:(NSString *)attribute index:(NSUInteger)index maxCount:(NSUInteger)maxCount;
-- (NSArray *)accessibilityChildrenAttribute;
-- (id) accessibilityTabsAttribute;
-- (BOOL)accessibilityIsTabsAttributeSettable;
-- (NSArray *)accessibilityContentsAttribute;
-- (BOOL)accessibilityIsContentsAttributeSettable;
-- (id) accessibilityValueAttribute;
-
-@end
-
-
-@interface TabGroupControlAccessibility : JavaComponentAccessibility {
-    jobject fTabGroupAxContext;
-}
-- (id)initWithParent:(NSObject *)parent withEnv:(JNIEnv *)env withAccessible:(jobject)accessible withIndex:(jint)index withTabGroup:(jobject)tabGroup withView:(NSView *)view withJavaRole:(NSString *)javaRole;
-- (jobject)tabGroup;
-- (void)getActionsWithEnv:(JNIEnv *)env;
-
-- (id)accessibilityValueAttribute;
-@end
-
-
-@interface ScrollAreaAccessibility : JavaComponentAccessibility {
-
-}
-- (NSArray *)initializeAttributeNamesWithEnv:(JNIEnv *)env;
-- (NSArray *)accessibilityContentsAttribute;
-- (BOOL)accessibilityIsContentsAttributeSettable;
-- (id)accessibilityVerticalScrollBarAttribute;
-- (BOOL)accessibilityIsVerticalScrollBarAttributeSettable;
-- (id)accessibilityHorizontalScrollBarAttribute;
-- (BOOL)accessibilityIsHorizontalScrollBarAttributeSettable;
-@end
-
-
 @implementation JavaComponentAccessibility
 
-- (NSString *)description
-{
-    return [NSString stringWithFormat:@"%@(title:'%@', desc:'%@', value:'%@')", [self accessibilityRoleAttribute],
-        [self accessibilityTitleAttribute], [self accessibilityRoleDescriptionAttribute], [self accessibilityValueAttribute]];
-}
-
-- (id)initWithParent:(NSObject *)parent withEnv:(JNIEnv *)env withAccessible:(jobject)accessible withIndex:(jint)index withView:(NSView *)view withJavaRole:(NSString *)javaRole
-{
-    self = [super init];
-    if (self)
-    {
-        fParent = [parent retain];
-        fView = [view retain];
-        fJavaRole = [javaRole retain];
-
-        fAccessible = (*env)->NewWeakGlobalRef(env, accessible);
-        (*env)->ExceptionClear(env); // in case of OOME
-        jobject jcomponent = [(AWTView *)fView awtComponent:env];
-        fComponent = (*env)->NewWeakGlobalRef(env, jcomponent);
-        (*env)->DeleteLocalRef(env, jcomponent);
-
-        fIndex = index;
-
-        fActions = nil;
-        fActionsLOCK = [[NSObject alloc] init];
-    }
-    return self;
-}
-
-- (void)unregisterFromCocoaAXSystem
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    static dispatch_once_t initialize_unregisterUniqueId_once;
-    static void (*unregisterUniqueId)(id);
-    dispatch_once(&initialize_unregisterUniqueId_once, ^{
-        void *jrsFwk = dlopen("/System/Library/Frameworks/JavaVM.framework/Frameworks/JavaRuntimeSupport.framework/JavaRuntimeSupport", RTLD_LAZY | RTLD_LOCAL);
-        unregisterUniqueId = dlsym(jrsFwk, "JRSAccessibilityUnregisterUniqueIdForUIElement");
-    });
-    if (unregisterUniqueId) unregisterUniqueId(self);
-}
-
-- (void)dealloc
-{
-    [self unregisterFromCocoaAXSystem];
-
-    JNIEnv *env = [ThreadUtilities getJNIEnvUncached];
-
-    (*env)->DeleteWeakGlobalRef(env, fAccessible);
-    fAccessible = NULL;
-
-    (*env)->DeleteWeakGlobalRef(env, fComponent);
-    fComponent = NULL;
-
-    [fParent release];
-    fParent = nil;
-
-    [fNSRole release];
-    fNSRole = nil;
-
-    [fJavaRole release];
-    fJavaRole = nil;
-
-    [fView release];
-    fView = nil;
-
-    [fActions release];
-    fActions = nil;
-
-    [fActionsLOCK release];
-    fActionsLOCK = nil;
-
-    [super dealloc];
-}
-
-- (void)postValueChanged
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    NSAccessibilityPostNotification(self, NSAccessibilityValueChangedNotification);
-}
-
-- (void)postSelectedTextChanged
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    NSAccessibilityPostNotification(self, NSAccessibilitySelectedTextChangedNotification);
-}
-
-- (void)postSelectionChanged
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    NSAccessibilityPostNotification(self, NSAccessibilitySelectedChildrenChangedNotification);
-}
-
-- (void)postMenuOpened
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    NSAccessibilityPostNotification(self, (NSString *)kAXMenuOpenedNotification);
-}
-
-- (void)postMenuClosed
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    NSAccessibilityPostNotification(self, (NSString *)kAXMenuClosedNotification);
-}
-
-- (void)postMenuItemSelected
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    NSAccessibilityPostNotification(self, (NSString *)kAXMenuItemSelectedNotification);
-}
-
-- (BOOL)isEqual:(id)anObject
-{
-    if (![anObject isKindOfClass:[self class]]) return NO;
-    JavaComponentAccessibility *accessibility = (JavaComponentAccessibility *)anObject;
-
-    JNIEnv* env = [ThreadUtilities getJNIEnv];
-    return (*env)->IsSameObject(env, accessibility->fAccessible, fAccessible);
-}
-
-- (BOOL)isAccessibleWithEnv:(JNIEnv *)env forAccessible:(jobject)accessible
-{
-    return (*env)->IsSameObject(env, fAccessible, accessible);
-}
-
 + (void)initialize
 {
     if (sAttributeNamesForRoleCache == nil) {
         sAttributeNamesLOCK = [[NSObject alloc] init];
         sAttributeNamesForRoleCache = [[NSMutableDictionary alloc] initWithCapacity:60];
     }
-
-    if (sRoles == nil) {
-        initializeRoles();
-    }
-
-    if (sAccessibilityClass == NULL) {
-        JNF_STATIC_MEMBER_CACHE(jm_getAccessibility, sjc_CAccessibility, "getAccessibility", "([Ljava/lang/String;)Lsun/lwawt/macosx/CAccessibility;");
-
-#ifdef JAVA_AX_NO_IGNORES
-        NSArray *ignoredKeys = [NSArray array];
-#else
-        NSArray *ignoredKeys = [sRoles allKeysForObject:JavaAccessibilityIgnore];
-#endif
-        jobjectArray result = NULL;
-        jsize count = [ignoredKeys count];
-
-        JNIEnv *env = [ThreadUtilities getJNIEnv];
-
-        static JNF_CLASS_CACHE(jc_String, "java/lang/String");
-        result = JNFNewObjectArray(env, &jc_String, count);
-        if (!result) {
-            NSLog(@"In %s, can't create Java array of String objects", __FUNCTION__);
-            return;
-        }
-
-        NSInteger i;
-        for (i = 0; i < count; i++) {
-            jstring jString = JNFNSToJavaString(env, [ignoredKeys objectAtIndex:i]);
-            (*env)->SetObjectArrayElement(env, result, i, jString);
-            (*env)->DeleteLocalRef(env, jString);
-        }
-
-        sAccessibilityClass = JNFCallStaticObjectMethod(env, jm_getAccessibility, result); // AWT_THREADING Safe (known object)
-    }
-}
-
-+ (void)postFocusChanged:(id)message
-{
-    AWT_ASSERT_APPKIT_THREAD;
-    NSAccessibilityPostNotification([NSApp accessibilityFocusedUIElement], NSAccessibilityFocusedUIElementChangedNotification);
-}
-
-+ (jobject) getCAccessible:(jobject)jaccessible withEnv:(JNIEnv *)env {
-    if (JNFIsInstanceOf(env, jaccessible, &sjc_CAccessible)) {
-        return jaccessible;
-    } else if (JNFIsInstanceOf(env, jaccessible, &sjc_Accessible)) {
-        return JNFCallStaticObjectMethod(env, sjm_getCAccessible, jaccessible);
-    }
-    return NULL;
-}
-
-+ (NSArray *)childrenOfParent:(JavaComponentAccessibility *)parent withEnv:(JNIEnv *)env withChildrenCode:(NSInteger)whichChildren allowIgnored:(BOOL)allowIgnored
-{
-    if (parent->fAccessible == NULL) return nil;
-    jobjectArray jchildrenAndRoles = (jobjectArray)JNFCallStaticObjectMethod(env, jm_getChildrenAndRoles, parent->fAccessible, parent->fComponent, whichChildren, allowIgnored); // AWT_THREADING Safe (AWTRunLoop)
-    if (jchildrenAndRoles == NULL) return nil;
-
-    jsize arrayLen = (*env)->GetArrayLength(env, jchildrenAndRoles);
-    NSMutableArray *children = [NSMutableArray arrayWithCapacity:arrayLen/2]; //childrenAndRoles array contains two elements (child, role) for each child
-
-    NSInteger i;
-    NSUInteger childIndex = (whichChildren >= 0) ? whichChildren : 0; // if we're getting one particular child, make sure to set its index correctly
-    for(i = 0; i < arrayLen; i+=2)
-    {
-        jobject /* Accessible */ jchild = (*env)->GetObjectArrayElement(env, jchildrenAndRoles, i);
-        jobject /* String */ jchildJavaRole = (*env)->GetObjectArrayElement(env, jchildrenAndRoles, i+1);
-
-        NSString *childJavaRole = nil;
-        if (jchildJavaRole != NULL) {
-            jobject jkey = JNFGetObjectField(env, jchildJavaRole, sjf_key);
-            childJavaRole = JNFJavaToNSString(env, jkey);
-            (*env)->DeleteLocalRef(env, jkey);
-        }
-
-        JavaComponentAccessibility *child = [self createWithParent:parent accessible:jchild role:childJavaRole index:childIndex withEnv:env withView:parent->fView];
-
-        (*env)->DeleteLocalRef(env, jchild);
-        (*env)->DeleteLocalRef(env, jchildJavaRole);
-
-        [children addObject:child];
-        childIndex++;
-    }
-    (*env)->DeleteLocalRef(env, jchildrenAndRoles);
-
-    return children;
-}
-
-+ (JavaComponentAccessibility *)createWithAccessible:(jobject)jaccessible withEnv:(JNIEnv *)env withView:(NSView *)view
-{
-    JavaComponentAccessibility *ret = nil;
-    jobject jcomponent = [(AWTView *)view awtComponent:env];
-    jint index = JNFCallStaticIntMethod(env, sjm_getAccessibleIndexInParent, jaccessible, jcomponent);
-    if (index >= 0) {
-      NSString *javaRole = getJavaRole(env, jaccessible, jcomponent);
-      ret = [self createWithAccessible:jaccessible role:javaRole index:index withEnv:env withView:view];
-    }
-    (*env)->DeleteLocalRef(env, jcomponent);
-    return ret;
-}
-
-+ (JavaComponentAccessibility *) createWithAccessible:(jobject)jaccessible role:(NSString *)javaRole index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view
-{
-    return [self createWithParent:nil accessible:jaccessible role:javaRole index:index withEnv:env withView:view];
-}
-
-+ (JavaComponentAccessibility *) createWithParent:(JavaComponentAccessibility *)parent accessible:(jobject)jaccessible role:(NSString *)javaRole index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view
-{
-    // try to fetch the jCAX from Java, and return autoreleased
-    jobject jCAX = [JavaComponentAccessibility getCAccessible:jaccessible withEnv:env];
-    if (jCAX == NULL) return nil;
-    JavaComponentAccessibility *value = (JavaComponentAccessibility *) jlong_to_ptr(JNFGetLongField(env, jCAX, jf_ptr));
-    if (value != nil) {
-        (*env)->DeleteLocalRef(env, jCAX);
-        return [[value retain] autorelease];
-    }
-
-    // otherwise, create a new instance
-    JavaComponentAccessibility *newChild = nil;
-    if ([javaRole isEqualToString:@"pagetablist"]) {
-        newChild = [TabGroupAccessibility alloc];
-    } else if ([javaRole isEqualToString:@"scrollpane"]) {
-        newChild = [ScrollAreaAccessibility alloc];
-    } else {
-        NSString *nsRole = [sRoles objectForKey:javaRole];
-        if ([nsRole isEqualToString:NSAccessibilityStaticTextRole] || [nsRole isEqualToString:NSAccessibilityTextAreaRole] || [nsRole isEqualToString:NSAccessibilityTextFieldRole]) {
-            newChild = [JavaTextAccessibility alloc];
-        } else {
-            newChild = [JavaComponentAccessibility alloc];
-        }
-    }
-
-    // must init freshly -alloc'd object
-    [newChild initWithParent:parent withEnv:env withAccessible:jCAX withIndex:index withView:view withJavaRole:javaRole]; // must init new instance
-
-    // If creating a JPopupMenu (not a combobox popup list) need to fire menuOpened.
-    // This is the only way to know if the menu is opening; visible state change
-    // can't be caught because the listeners are not set up in time.
-    if ( [javaRole isEqualToString:@"popupmenu"] &&
-         ![[parent javaRole] isEqualToString:@"combobox"] ) {
-        [newChild postMenuOpened];
-    }
-
-    // must hard retain pointer poked into Java object
-    [newChild retain];
-    JNFSetLongField(env, jCAX, jf_ptr, ptr_to_jlong(newChild));
-    (*env)->DeleteLocalRef(env, jCAX);
-
-    // return autoreleased instance
-    return [newChild autorelease];
 }
 
 - (NSArray *)initializeAttributeNamesWithEnv:(JNIEnv *)env
@@ -533,101 +200,6 @@ static NSObject *sAttributeNamesLOCK = nil;
     }
 }
 
-- (jobject)axContextWithEnv:(JNIEnv *)env
-{
-    return getAxContext(env, fAccessible, fComponent);
-}
-
-- (id)parent
-{
-    static JNF_CLASS_CACHE(sjc_Window, "java/awt/Window");
-    static JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleParent, sjc_CAccessibility, "getAccessibleParent", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Ljavax/accessibility/Accessible;");
-    static JNF_STATIC_MEMBER_CACHE(sjm_getSwingAccessible, sjc_CAccessible, "getSwingAccessible", "(Ljavax/accessibility/Accessible;)Ljavax/accessibility/Accessible;");
-
-    if(fParent == nil) {
-        JNIEnv* env = [ThreadUtilities getJNIEnv];
-
-        jobject jparent = JNFCallStaticObjectMethod(env, sjm_getAccessibleParent, fAccessible, fComponent);
-
-        if (jparent == NULL) {
-            fParent = fView;
-        } else {
-            AWTView *view = fView;
-            jobject jax = JNFCallStaticObjectMethod(env, sjm_getSwingAccessible, fAccessible);
-
-            if (JNFIsInstanceOf(env, jax, &sjc_Window)) {
-                // In this case jparent is an owner toplevel and we should retrieve its own view
-                view = [AWTView awtView:env ofAccessible:jparent];
-            }
-            if (view != nil) {
-                fParent = [JavaComponentAccessibility createWithAccessible:jparent withEnv:env withView:view];
-            }
-            if (fParent == nil) {
-                fParent = fView;
-            }
-            (*env)->DeleteLocalRef(env, jparent);
-            (*env)->DeleteLocalRef(env, jax );
-        }
-        [fParent retain];
-    }
-    return fParent;
-}
-
-- (NSView *)view
-{
-    return fView;
-}
-
-- (NSWindow *)window
-{
-    return [[self view] window];
-}
-
-- (NSString *)javaRole
-{
-    if(fJavaRole == nil) {
-        JNIEnv* env = [ThreadUtilities getJNIEnv];
-        fJavaRole = getJavaRole(env, fAccessible, fComponent);
-        [fJavaRole retain];
-    }
-    return fJavaRole;
-}
-
-- (BOOL)isMenu
-{
-    id role = [self accessibilityRoleAttribute];
-    return [role isEqualToString:NSAccessibilityMenuBarRole] || [role isEqualToString:NSAccessibilityMenuRole] || [role isEqualToString:NSAccessibilityMenuItemRole];
-}
-
-- (BOOL)isSelected:(JNIEnv *)env
-{
-    if (fIndex == -1) {
-        return NO;
-    }
-
-    return isChildSelected(env, ((JavaComponentAccessibility *)[self parent])->fAccessible, fIndex, fComponent);
-}
-
-- (BOOL)isSelectable:(JNIEnv *)env
-{
-    jobject axContext = [self axContextWithEnv:env];
-    BOOL selectable = isSelectable(env, axContext, fComponent);
-    (*env)->DeleteLocalRef(env, axContext);
-    return selectable;
-}
-
-- (BOOL)isVisible:(JNIEnv *)env
-{
-    if (fIndex == -1) {
-        return NO;
-    }
-
-    jobject axContext = [self axContextWithEnv:env];
-    BOOL showing = isShowing(env, axContext, fComponent);
-    (*env)->DeleteLocalRef(env, axContext);
-    return showing;
-}
-
 // the array of names for each role is cached in the sAttributeNamesForRoleCache
 - (NSArray *)accessibilityAttributeNames
 {
@@ -731,7 +303,7 @@ static NSObject *sAttributeNamesLOCK = nil;
 - (NSArray *)accessibilityChildrenAttribute
 {
     JNIEnv* env = [ThreadUtilities getJNIEnv];
-    NSArray *children = [JavaComponentAccessibility childrenOfParent:self
+    NSArray *children = [JavaElementAccessibility childrenOfParent:self
                                                     withEnv:env
                                                     withChildrenCode:JAVA_AX_ALL_CHILDREN
                                                     allowIgnored:NO];
@@ -762,8 +334,8 @@ static NSObject *sAttributeNamesLOCK = nil;
     jint returnValue =
         JNFCallStaticIntMethod( [ThreadUtilities getJNIEnv],
                                 sjm_getAccessibleIndexInParent,
-                                ((JavaComponentAccessibility *)child)->fAccessible,
-                                ((JavaComponentAccessibility *)child)->fComponent );
+                                ((JavaElementAccessibility *)child)->fAccessible,
+                                ((JavaElementAccessibility *)child)->fComponent );
     return (returnValue == -1) ? NSNotFound : returnValue;
 }
 
@@ -771,7 +343,7 @@ static NSObject *sAttributeNamesLOCK = nil;
 - (NSArray *)accessibilityArrayAttributeValues:(NSString *)attribute index:(NSUInteger)index maxCount:(NSUInteger)maxCount {
     if ( (maxCount == 1) && [attribute isEqualToString:NSAccessibilityChildrenAttribute]) {
         // Children codes for ALL, SELECTED, VISIBLE are <0. If the code is >=0, we treat it as an index to a single child
-        NSArray *child = [JavaComponentAccessibility childrenOfParent:self withEnv:[ThreadUtilities getJNIEnv] withChildrenCode:(NSInteger)index allowIgnored:NO];
+        NSArray *child = [JavaElementAccessibility childrenOfParent:self withEnv:[ThreadUtilities getJNIEnv] withChildrenCode:(NSInteger)index allowIgnored:NO];
         if ([child count] > 0) {
             return child;
         }
@@ -1030,7 +602,7 @@ static NSObject *sAttributeNamesLOCK = nil;
 - (NSArray *)accessibilitySelectedChildrenAttribute
 {
     JNIEnv* env = [ThreadUtilities getJNIEnv];
-    NSArray *selectedChildren = [JavaComponentAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_SELECTED_CHILDREN allowIgnored:NO];
+    NSArray *selectedChildren = [JavaElementAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_SELECTED_CHILDREN allowIgnored:NO];
     if ([selectedChildren count] > 0) {
         return selectedChildren;
     }
@@ -1177,7 +749,7 @@ static NSObject *sAttributeNamesLOCK = nil;
     if ( [[self javaRole] isEqualToString:@"popupmenu"] &&
          ![[parent javaRole] isEqualToString:@"combobox"] ) {
         NSArray *children =
-            [JavaComponentAccessibility childrenOfParent:self
+            [JavaElementAccessibility childrenOfParent:self
                                         withEnv:env
                                         withChildrenCode:JAVA_AX_ALL_CHILDREN
                                         allowIgnored:YES];
@@ -1186,7 +758,7 @@ static NSObject *sAttributeNamesLOCK = nil;
             // need to ask menu what is selected
             NSArray *selectedChildrenOfMenu =
             	[self accessibilitySelectedChildrenAttribute];
-            JavaComponentAccessibility *selectedMenuItem =
+            JavaElementAccessibility *selectedMenuItem =
             	[selectedChildrenOfMenu objectAtIndex:0];
             if (selectedMenuItem != nil) {
                 jobject itemValue =
@@ -1253,7 +825,7 @@ static NSObject *sAttributeNamesLOCK = nil;
 - (NSArray *)accessibilityVisibleChildrenAttribute
 {
     JNIEnv *env = [ThreadUtilities getJNIEnv];
-    NSArray *visibleChildren = [JavaComponentAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_VISIBLE_CHILDREN allowIgnored:NO];
+    NSArray *visibleChildren = [JavaElementAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_VISIBLE_CHILDREN allowIgnored:NO];
     if ([visibleChildren count] <= 0) return nil;
     return visibleChildren;
 }
@@ -1298,194 +870,8 @@ static NSObject *sAttributeNamesLOCK = nil;
     [(id <JavaAccessibilityAction>)[[self getActions:env] objectForKey:action] perform];
 }
 
-
-// -- misc accessibility --
-- (BOOL)accessibilityIsIgnored
-{
-#ifdef JAVA_AX_NO_IGNORES
-    return NO;
-#else
-    return [[self accessibilityRoleAttribute] isEqualToString:JavaAccessibilityIgnore];
-#endif /* JAVA_AX_NO_IGNORES */
-}
-
-- (id)accessibilityHitTest:(NSPoint)point withEnv:(JNIEnv *)env
-{
-    static JNF_CLASS_CACHE(jc_Container, "java/awt/Container");
-    static JNF_STATIC_MEMBER_CACHE(jm_accessibilityHitTest, sjc_CAccessibility, "accessibilityHitTest", "(Ljava/awt/Container;FF)Ljavax/accessibility/Accessible;");
-
-    // Make it into java screen coords
-    point.y = [[[[self view] window] screen] frame].size.height - point.y;
-
-    jobject jparent = fComponent;
-
-    id value = nil;
-    if (JNFIsInstanceOf(env, jparent, &jc_Container)) {
-        jobject jaccessible = JNFCallStaticObjectMethod(env, jm_accessibilityHitTest, jparent, (jfloat)point.x, (jfloat)point.y); // AWT_THREADING Safe (AWTRunLoop)
-        if (jaccessible != NULL) {
-            value = [JavaComponentAccessibility createWithAccessible:jaccessible withEnv:env withView:fView];
-            (*env)->DeleteLocalRef(env, jaccessible);
-        }
-    }
-
-    if (value == nil) {
-        value = self;
-    }
-
-    if ([value accessibilityIsIgnored]) {
-        value = NSAccessibilityUnignoredAncestor(value);
-    }
-
-#ifdef JAVA_AX_DEBUG
-    NSLog(@"%s: %@", __FUNCTION__, value);
-#endif
-    return value;
-}
-
-- (id)accessibilityFocusedUIElement
-{
-    static JNF_STATIC_MEMBER_CACHE(jm_getFocusOwner, sjc_CAccessibility, "getFocusOwner", "(Ljava/awt/Component;)Ljavax/accessibility/Accessible;");
-
-    JNIEnv *env = [ThreadUtilities getJNIEnv];
-    id value = nil;
-
-    NSWindow* hostWindow = [[self->fView window] retain];
-    jobject focused = JNFCallStaticObjectMethod(env, jm_getFocusOwner, fComponent); // AWT_THREADING Safe (AWTRunLoop)
-    [hostWindow release];
-
-    if (focused != NULL) {
-        if (JNFIsInstanceOf(env, focused, &sjc_Accessible)) {
-            value = [JavaComponentAccessibility createWithAccessible:focused withEnv:env withView:fView];
-        }
-        (*env)->DeleteLocalRef(env, focused);
-    }
-
-    if (value == nil) {
-        value = self;
-    }
-#ifdef JAVA_AX_DEBUG
-    NSLog(@"%s: %@", __FUNCTION__, value);
-#endif
-    return value;
-}
-
 @end
 
-/*
- * Class:     sun_lwawt_macosx_CAccessibility
- * Method:    focusChanged
- * Signature: ()V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessibility_focusChanged
-(JNIEnv *env, jobject jthis)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(postFocusChanged:) on:[JavaComponentAccessibility class] withObject:nil waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
-
-/*
- * Class:     sun_lwawt_macosx_CAccessible
- * Method:    valueChanged
- * Signature: (I)V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_valueChanged
-(JNIEnv *env, jclass jklass, jlong element)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(postValueChanged) on:(JavaComponentAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
-
-/*
- * Class:     sun_lwawt_macosx_CAccessible
- * Method:    selectedTextChanged
- * Signature: (I)V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_selectedTextChanged
-(JNIEnv *env, jclass jklass, jlong element)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(postSelectedTextChanged)
-                     on:(JavaComponentAccessibility *)jlong_to_ptr(element)
-                     withObject:nil
-                     waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
-
-/*
- * Class:     sun_lwawt_macosx_CAccessible
- * Method:    selectionChanged
- * Signature: (I)V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_selectionChanged
-(JNIEnv *env, jclass jklass, jlong element)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(postSelectionChanged) on:(JavaComponentAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
-
-/*
- * Class:     sun_lwawt_macosx_CAccessible
- * Method:    menuOpened
- * Signature: (I)V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_menuOpened
-(JNIEnv *env, jclass jklass, jlong element)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(postMenuOpened)
-                     on:(JavaComponentAccessibility *)jlong_to_ptr(element)
-                     withObject:nil
-                     waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
-
-/*
- * Class:     sun_lwawt_macosx_CAccessible
- * Method:    menuClosed
- * Signature: (I)V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_menuClosed
-(JNIEnv *env, jclass jklass, jlong element)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(postMenuClosed)
-                     on:(JavaComponentAccessibility *)jlong_to_ptr(element)
-                     withObject:nil
-                     waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
-
-/*
- * Class:     sun_lwawt_macosx_CAccessible
- * Method:    menuItemSelected
- * Signature: (I)V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_menuItemSelected
-(JNIEnv *env, jclass jklass, jlong element)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(postMenuItemSelected)
-                     on:(JavaComponentAccessibility *)jlong_to_ptr(element)
-                     withObject:nil
-                     waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
-
-/*
- * Class:     sun_lwawt_macosx_CAccessible
- * Method:    unregisterFromCocoaAXSystem
- * Signature: (I)V
- */
-JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_unregisterFromCocoaAXSystem
-(JNIEnv *env, jclass jklass, jlong element)
-{
-JNF_COCOA_ENTER(env);
-    [ThreadUtilities performOnMainThread:@selector(unregisterFromCocoaAXSystem) on:(JavaComponentAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
-JNF_COCOA_EXIT(env);
-}
 
 @implementation TabGroupAccessibility
 
@@ -1573,7 +959,7 @@ JNF_COCOA_EXIT(env);
     id currentTab = [self currentTabWithEnv:env withAxContext:axContext];
     if (currentTab == nil) return nil;
 
-    NSArray *contents = [JavaComponentAccessibility childrenOfParent:currentTab withEnv:env withChildrenCode:whichTabs allowIgnored:allowIgnored];
+    NSArray *contents = [JavaElementAccessibility childrenOfParent:currentTab withEnv:env withChildrenCode:whichTabs allowIgnored:allowIgnored];
     if ([contents count] <= 0) return nil;
     return contents;
 }
@@ -1765,7 +1151,7 @@ static BOOL ObjectEquals(JNIEnv *env, jobject a, jobject b, jobject component);
 {
     JNIEnv *env = [ThreadUtilities getJNIEnv];
 
-    NSArray *children = [JavaComponentAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_ALL_CHILDREN allowIgnored:YES];
+    NSArray *children = [JavaElementAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_ALL_CHILDREN allowIgnored:YES];
     if ([children count] <= 0) return nil;
 
     // The scroll bars are in the children.
@@ -1794,7 +1180,7 @@ static BOOL ObjectEquals(JNIEnv *env, jobject a, jobject b, jobject component);
 {
     JNIEnv *env = [ThreadUtilities getJNIEnv];
 
-    NSArray *children = [JavaComponentAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_ALL_CHILDREN allowIgnored:YES];
+    NSArray *children = [JavaElementAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_ALL_CHILDREN allowIgnored:YES];
     if ([children count] <= 0) return nil;
 
     // The scroll bars are in the children.
@@ -1822,7 +1208,7 @@ static BOOL ObjectEquals(JNIEnv *env, jobject a, jobject b, jobject component);
 - (NSArray *)accessibilityContentsAttribute
 {
     JNIEnv *env = [ThreadUtilities getJNIEnv];
-    NSArray *children = [JavaComponentAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_ALL_CHILDREN allowIgnored:YES];
+    NSArray *children = [JavaElementAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_ALL_CHILDREN allowIgnored:YES];
 
     if ([children count] <= 0) return nil;
     NSArray *contents = [NSMutableArray arrayWithCapacity:[children count]];

src/java.desktop/macosx/native/libawt_lwawt/awt/JavaElementAccessibility.h

@@ -0,0 +1,72 @@
+// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+
+#include "jni.h"
+
+#import <AppKit/AppKit.h>
+#import <JavaNativeFoundation/JavaNativeFoundation.h>
+
+//#define JAVA_AX_DEBUG 1
+//#define JAVA_AX_NO_IGNORES 1
+//#define JAVA_AX_DEBUG_PARMS 1
+
+// these constants are duplicated in CAccessibility.java
+#define JAVA_AX_ALL_CHILDREN (-1)
+#define JAVA_AX_SELECTED_CHILDREN (-2)
+#define JAVA_AX_VISIBLE_CHILDREN (-3)
+// If the value is >=0, it's an index
+
+extern JNFClassInfo sjc_CAccessible;
+extern JNFMemberInfo *jm_getChildrenAndRoles;
+extern JNFMemberInfo *jf_ptr;
+extern JNFMemberInfo *sjm_getCAccessible;
+extern JNFMemberInfo *sjm_getAccessibleIndexInParent;
+
+@interface JavaElementAccessibility : NSAccessibilityElement
+{
+    NSView *fView;
+    NSObject *fParent;
+
+    NSString *fNSRole;
+    NSString *fJavaRole;
+
+    jint fIndex;
+    jobject fAccessible;
+    jobject fComponent;
+
+    NSMutableDictionary *fActions;
+    NSObject *fActionsLOCK;
+}
+
+- (id)initWithParent:(NSObject*)parent withEnv:(JNIEnv *)env withAccessible:(jobject)accessible withIndex:(jint)index withView:(NSView *)view withJavaRole:(NSString *)javaRole;
+- (void)unregisterFromCocoaAXSystem;
+- (void)postValueChanged;
+- (void)postSelectedTextChanged;
+- (void)postSelectionChanged;
+- (BOOL)isEqual:(id)anObject;
+- (BOOL)isAccessibleWithEnv:(JNIEnv *)env forAccessible:(jobject)accessible;
+
++ (void)postFocusChanged:(id)message;
+
++ (NSArray*)childrenOfParent:(JavaElementAccessibility*)parent withEnv:(JNIEnv *)env withChildrenCode:(NSInteger)whichChildren allowIgnored:(BOOL)allowIgnored;
++ (JavaElementAccessibility *) createWithParent:(JavaElementAccessibility *)parent accessible:(jobject)jaccessible role:(NSString *)javaRole index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view;
++ (JavaElementAccessibility *) createWithAccessible:(jobject)jaccessible role:(NSString *)role index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view;
++ (JavaElementAccessibility *) createWithAccessible:(jobject)jaccessible withEnv:(JNIEnv *)env withView:(NSView *)view;
+
+- (NSDictionary*)getActions:(JNIEnv *)env;
+- (void)getActionsWithEnv:(JNIEnv *)env;
+
+- (jobject)axContextWithEnv:(JNIEnv *)env;
+- (NSView*)view;
+- (NSWindow*)window;
+- (id)parent;
+- (NSString *)javaRole;
+- (BOOL)isMenu;
+- (BOOL)isSelected:(JNIEnv *)env;
+- (BOOL)isSelectable:(JNIEnv *)env;
+- (BOOL)isVisible:(JNIEnv *)env;
+
+- (BOOL)accessibilityIsIgnored;
+- (id)accessibilityHitTest:(NSPoint)point withEnv:(JNIEnv *)env;
+- (id)accessibilityFocusedUIElement;
+
+@end

src/java.desktop/macosx/native/libawt_lwawt/awt/JavaElementAccessibility.m

@@ -0,0 +1,603 @@
+// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+
+#import "JavaElementAccessibility.h"
+
+#import "sun_lwawt_macosx_CAccessibility.h"
+
+#import <AppKit/AppKit.h>
+
+#import <JavaNativeFoundation/JavaNativeFoundation.h>
+#import <JavaRuntimeSupport/JavaRuntimeSupport.h>
+
+#import <dlfcn.h>
+
+#import "JavaAccessibilityAction.h"
+#import "JavaAccessibilityUtilities.h"
+#import "JavaTextAccessibility.h"
+#import "JavaListAccessibility.h"
+#import "JavaComponentAccessibility.h"
+#import "ThreadUtilities.h"
+#import "AWTView.h"
+
+JNF_CLASS_CACHE(sjc_CAccessible, "sun/lwawt/macosx/CAccessible");
+JNF_STATIC_MEMBER_CACHE(jm_getChildrenAndRoles, sjc_CAccessibility, "getChildrenAndRoles", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;IZ)[Ljava/lang/Object;");
+JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleIndexInParent, sjc_CAccessibility, "getAccessibleIndexInParent", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)I");
+JNF_STATIC_MEMBER_CACHE(sjm_getCAccessible, sjc_CAccessible, "getCAccessible", "(Ljavax/accessibility/Accessible;)Lsun/lwawt/macosx/CAccessible;");
+JNF_MEMBER_CACHE(jf_ptr, sjc_CAccessible, "ptr", "J");
+
+@class TabGroupAccessibility;
+@class ScrollAreaAccessibility;
+
+@implementation JavaElementAccessibility
+
+- (NSRect)accessibilityFrame
+{
+    return [super accessibilityFrame]; // todo: implement
+}
+
+//  - (nullable id)accessibilityParent
+//  {
+//     return [self parent]; // conflicts
+//  }
+
+- (NSString *)description
+{
+    return [NSString stringWithFormat:@"%@(title:'%@', desc:'%@', value:'%@')", [self accessibilityRoleAttribute],
+                                      [self accessibilityTitleAttribute], [self accessibilityRoleDescriptionAttribute], [self accessibilityValueAttribute]];
+}
+
+- (id)initWithParent:(NSObject *)parent withEnv:(JNIEnv *)env withAccessible:(jobject)accessible withIndex:(jint)index withView:(NSView *)view withJavaRole:(NSString *)javaRole
+{
+    self = [super init];
+    if (self) {
+        fParent = [parent retain];
+        fView = [view retain];
+        fJavaRole = [javaRole retain];
+
+        fAccessible = (*env)->NewWeakGlobalRef(env, accessible);
+        (*env)->ExceptionClear(env); // in case of OOME
+        jobject jcomponent = [(AWTView *) fView awtComponent:env];
+        fComponent = (*env)->NewWeakGlobalRef(env, jcomponent);
+        (*env)->DeleteLocalRef(env, jcomponent);
+
+        fIndex = index;
+
+        fActions = nil;
+        fActionsLOCK = [[NSObject alloc] init];
+    }
+    return self;
+}
+
+- (void)unregisterFromCocoaAXSystem
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    static dispatch_once_t initialize_unregisterUniqueId_once;
+    static void (*unregisterUniqueId)(id);
+    dispatch_once(&initialize_unregisterUniqueId_once, ^{
+        void *jrsFwk = dlopen("/System/Library/Frameworks/JavaVM.framework/Frameworks/JavaRuntimeSupport.framework/JavaRuntimeSupport",
+                              RTLD_LAZY | RTLD_LOCAL);
+        unregisterUniqueId = dlsym(jrsFwk, "JRSAccessibilityUnregisterUniqueIdForUIElement");
+    });
+    if (unregisterUniqueId) unregisterUniqueId(self);
+}
+
+- (void)dealloc
+{
+    [self unregisterFromCocoaAXSystem];
+
+    JNIEnv *env = [ThreadUtilities getJNIEnvUncached];
+
+    (*env)->DeleteWeakGlobalRef(env, fAccessible);
+    fAccessible = NULL;
+
+    (*env)->DeleteWeakGlobalRef(env, fComponent);
+    fComponent = NULL;
+
+    [fParent release];
+    fParent = nil;
+
+    [fNSRole release];
+    fNSRole = nil;
+
+    [fJavaRole release];
+    fJavaRole = nil;
+
+    [fView release];
+    fView = nil;
+
+    [fActions release];
+    fActions = nil;
+
+    [fActionsLOCK release];
+    fActionsLOCK = nil;
+
+    [super dealloc];
+}
+
+- (void)postValueChanged
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    NSAccessibilityPostNotification(self, NSAccessibilityValueChangedNotification);
+}
+
+- (void)postSelectedTextChanged
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    NSAccessibilityPostNotification(self, NSAccessibilitySelectedTextChangedNotification);
+}
+
+- (void)postSelectionChanged
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    NSAccessibilityPostNotification(self, NSAccessibilitySelectedChildrenChangedNotification);
+}
+
+- (void)postMenuOpened
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    NSAccessibilityPostNotification(self, (NSString *) kAXMenuOpenedNotification);
+}
+
+- (void)postMenuClosed
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    NSAccessibilityPostNotification(self, (NSString *) kAXMenuClosedNotification);
+}
+
+- (void)postMenuItemSelected
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    NSAccessibilityPostNotification(self, (NSString *) kAXMenuItemSelectedNotification);
+}
+
+- (BOOL)isEqual:(id)anObject
+{
+    if (![anObject isKindOfClass:[self class]]) return NO;
+    JavaElementAccessibility *accessibility = (JavaElementAccessibility *) anObject;
+
+    JNIEnv *env = [ThreadUtilities getJNIEnv];
+    return (*env)->IsSameObject(env, accessibility->fAccessible, fAccessible);
+}
+
+- (BOOL)isAccessibleWithEnv:(JNIEnv *)env forAccessible:(jobject)accessible
+{
+    return (*env)->IsSameObject(env, fAccessible, accessible);
+}
+
++ (void)initialize
+{
+    if (sRoles == nil) {
+        initializeRoles();
+    }
+}
+
++ (void)postFocusChanged:(id)message
+{
+    AWT_ASSERT_APPKIT_THREAD;
+    NSAccessibilityPostNotification([NSApp accessibilityFocusedUIElement],
+                                    NSAccessibilityFocusedUIElementChangedNotification);
+}
+
++ (jobject)getCAccessible:(jobject)jaccessible withEnv:(JNIEnv *)env
+{
+    if (JNFIsInstanceOf(env, jaccessible, &sjc_CAccessible)) {
+        return jaccessible;
+    } else if (JNFIsInstanceOf(env, jaccessible, &sjc_Accessible)) {
+        return JNFCallStaticObjectMethod(env, sjm_getCAccessible, jaccessible);
+    }
+    return NULL;
+}
+
++ (NSArray *)childrenOfParent:(JavaElementAccessibility *)parent withEnv:(JNIEnv *)env withChildrenCode:(NSInteger)whichChildren allowIgnored:(BOOL)allowIgnored
+{
+    if (parent->fAccessible == NULL) return nil;
+    jobjectArray jchildrenAndRoles = (jobjectArray) JNFCallStaticObjectMethod(env, jm_getChildrenAndRoles,
+                                                                              parent->fAccessible, parent->fComponent,
+                                                                              whichChildren,
+                                                                              allowIgnored); // AWT_THREADING Safe (AWTRunLoop)
+    if (jchildrenAndRoles == NULL) return nil;
+
+    jsize arrayLen = (*env)->GetArrayLength(env, jchildrenAndRoles);
+    NSMutableArray *children = [NSMutableArray arrayWithCapacity:arrayLen /
+                                                                 2]; //childrenAndRoles array contains two elements (child, role) for each child
+
+    NSInteger i;
+    NSUInteger childIndex = (whichChildren >= 0) ? whichChildren
+                                                 : 0; // if we're getting one particular child, make sure to set its index correctly
+    for (i = 0; i < arrayLen; i += 2) {
+        jobject /* Accessible */ jchild = (*env)->GetObjectArrayElement(env, jchildrenAndRoles, i);
+        jobject /* String */ jchildJavaRole = (*env)->GetObjectArrayElement(env, jchildrenAndRoles, i + 1);
+
+        NSString *childJavaRole = nil;
+        if (jchildJavaRole != NULL) {
+            jobject jkey = JNFGetObjectField(env, jchildJavaRole, sjf_key);
+            childJavaRole = JNFJavaToNSString(env, jkey);
+            (*env)->DeleteLocalRef(env, jkey);
+        }
+
+        JavaElementAccessibility *child = [self createWithParent:parent accessible:jchild role:childJavaRole index:childIndex withEnv:env withView:parent->fView];
+
+        (*env)->DeleteLocalRef(env, jchild);
+        (*env)->DeleteLocalRef(env, jchildJavaRole);
+
+        [children addObject:child];
+        childIndex++;
+    }
+    (*env)->DeleteLocalRef(env, jchildrenAndRoles);
+
+    return children;
+}
+
++ (JavaElementAccessibility *)createWithAccessible:(jobject)jaccessible withEnv:(JNIEnv *)env withView:(NSView *)view
+{
+    JavaElementAccessibility *ret = nil;
+    jobject jcomponent = [(AWTView *) view awtComponent:env];
+    jint index = JNFCallStaticIntMethod(env, sjm_getAccessibleIndexInParent, jaccessible, jcomponent);
+    if (index >= 0) {
+        NSString *javaRole = getJavaRole(env, jaccessible, jcomponent);
+        ret = [self createWithAccessible:jaccessible role:javaRole index:index withEnv:env withView:view];
+    }
+    (*env)->DeleteLocalRef(env, jcomponent);
+    return ret;
+}
+
++ (JavaElementAccessibility *)createWithAccessible:(jobject)jaccessible role:(NSString *)javaRole index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view
+{
+    return [self createWithParent:nil accessible:jaccessible role:javaRole index:index withEnv:env withView:view];
+}
+
++ (JavaElementAccessibility *)createWithParent:(JavaElementAccessibility *)parent accessible:(jobject)jaccessible role:(NSString *)javaRole index:(jint)index withEnv:(JNIEnv *)env withView:(NSView *)view
+{
+    // try to fetch the jCAX from Java, and return autoreleased
+    jobject jCAX = [JavaElementAccessibility getCAccessible:jaccessible withEnv:env];
+    if (jCAX == NULL) return nil;
+    JavaElementAccessibility *value = (JavaElementAccessibility *) jlong_to_ptr(JNFGetLongField(env, jCAX, jf_ptr));
+    if (value != nil) {
+        (*env)->DeleteLocalRef(env, jCAX);
+        return [[value retain] autorelease];
+    }
+
+    // otherwise, create a new instance
+    JavaElementAccessibility *newChild = nil;
+    if ([javaRole isEqualToString:@"pagetablist"]) {
+        newChild = [TabGroupAccessibility alloc];
+    } else if ([javaRole isEqualToString:@"scrollpane"]) {
+        newChild = [ScrollAreaAccessibility alloc];
+    } else {
+        NSString *nsRole = [sRoles objectForKey:javaRole];
+        if ([nsRole isEqualToString:NSAccessibilityStaticTextRole] ||
+            [nsRole isEqualToString:NSAccessibilityTextAreaRole] ||
+            [nsRole isEqualToString:NSAccessibilityTextFieldRole]) {
+            newChild = [JavaTextAccessibility alloc];
+        } else if ([nsRole isEqualToString:NSAccessibilityListRole]) {
+            newChild = [JavaListAccessibility alloc];
+//      } else if ([nsRole isEqualToString:NSAccessibilityRowRole]) {
+//        newChild = [JavaRowAccessibility alloc];
+        } else {
+            newChild = [JavaElementAccessibility alloc];
+        }
+    }
+
+    // must init freshly -alloc'd object
+    [newChild initWithParent:parent withEnv:env withAccessible:jCAX withIndex:index withView:view withJavaRole:javaRole]; // must init new instance
+
+    // If creating a JPopupMenu (not a combobox popup list) need to fire menuOpened.
+    // This is the only way to know if the menu is opening; visible state change
+    // can't be caught because the listeners are not set up in time.
+    if ([javaRole isEqualToString:@"popupmenu"] &&
+        ![[parent javaRole] isEqualToString:@"combobox"]) {
+        [newChild postMenuOpened];
+    }
+
+    // must hard retain pointer poked into Java object
+    [newChild retain];
+    JNFSetLongField(env, jCAX, jf_ptr, ptr_to_jlong(newChild));
+    (*env)->DeleteLocalRef(env, jCAX);
+
+    // return autoreleased instance
+    return [newChild autorelease];
+}
+
+- (NSDictionary *)getActions:(JNIEnv *)env
+{
+    @synchronized (fActionsLOCK) {
+        if (fActions == nil) {
+            fActions = [[NSMutableDictionary alloc] initWithCapacity:3];
+            [self getActionsWithEnv:env];
+        }
+    }
+
+    return fActions;
+}
+
+- (void)getActionsWithEnv:(JNIEnv *)env
+{
+    static JNF_STATIC_MEMBER_CACHE(jm_getAccessibleAction, sjc_CAccessibility,
+    "getAccessibleAction", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Ljavax/accessibility/AccessibleAction;");
+
+    // On MacOSX, text doesn't have actions, in java it does.
+    // cmcnote: NOT TRUE - Editable text has AXShowMenu. Textfields have AXConfirm. Static text has no actions.
+    jobject axAction = JNFCallStaticObjectMethod(env, jm_getAccessibleAction, fAccessible,
+                                                 fComponent); // AWT_THREADING Safe (AWTRunLoop)
+    if (axAction != NULL) {
+        //+++gdb NOTE: In MacOSX, there is just a single Action, not multiple. In java,
+        //  the first one seems to be the most basic, so this will be used.
+        // cmcnote: NOT TRUE - Sometimes there are multiple actions, eg sliders have AXDecrement AND AXIncrement (radr://3893192)
+        JavaAxAction *action = [[JavaAxAction alloc] initWithEnv:env withAccessibleAction:axAction withIndex:0 withComponent:fComponent];
+        [fActions setObject:action forKey:[self isMenu] ? NSAccessibilityPickAction : NSAccessibilityPressAction];
+        [action release];
+        (*env)->DeleteLocalRef(env, axAction);
+    }
+}
+
+- (jobject)axContextWithEnv:(JNIEnv *)env
+{
+    return getAxContext(env, fAccessible, fComponent);
+}
+
+- (id)parent
+{
+    static JNF_CLASS_CACHE(sjc_Window, "java/awt/Window");
+    static JNF_STATIC_MEMBER_CACHE(sjm_getAccessibleParent, sjc_CAccessibility, "getAccessibleParent", "(Ljavax/accessibility/Accessible;Ljava/awt/Component;)Ljavax/accessibility/Accessible;");
+    static JNF_STATIC_MEMBER_CACHE(sjm_getSwingAccessible, sjc_CAccessible, "getSwingAccessible", "(Ljavax/accessibility/Accessible;)Ljavax/accessibility/Accessible;");
+
+    if (fParent == nil) {
+        JNIEnv *env = [ThreadUtilities getJNIEnv];
+
+        jobject jparent = JNFCallStaticObjectMethod(env, sjm_getAccessibleParent, fAccessible, fComponent);
+
+        if (jparent == NULL) {
+            fParent = fView;
+        } else {
+            AWTView *view = fView;
+            jobject jax = JNFCallStaticObjectMethod(env, sjm_getSwingAccessible, fAccessible);
+
+            if (JNFIsInstanceOf(env, jax, &sjc_Window)) {
+                // In this case jparent is an owner toplevel and we should retrieve its own view
+                view = [AWTView awtView:env ofAccessible:jparent];
+            }
+            if (view != nil) {
+                fParent = [JavaElementAccessibility createWithAccessible:jparent withEnv:env withView:view];
+            }
+            if (fParent == nil) {
+                fParent = fView;
+            }
+            (*env)->DeleteLocalRef(env, jparent);
+            (*env)->DeleteLocalRef(env, jax);
+        }
+        [fParent retain];
+    }
+    return fParent;
+}
+
+- (NSView *)view
+{
+    return fView;
+}
+
+- (NSWindow *)window
+{
+    return [[self view] window];
+}
+
+- (NSString *)javaRole
+{
+    if (fJavaRole == nil) {
+        JNIEnv *env = [ThreadUtilities getJNIEnv];
+        fJavaRole = getJavaRole(env, fAccessible, fComponent);
+        [fJavaRole retain];
+    }
+    return fJavaRole;
+}
+
+- (BOOL)isMenu
+{
+    id role = [self accessibilityRoleAttribute];
+    return [role isEqualToString:NSAccessibilityMenuBarRole] || [role isEqualToString:NSAccessibilityMenuRole] ||
+           [role isEqualToString:NSAccessibilityMenuItemRole];
+}
+
+- (BOOL)isSelected:(JNIEnv *)env
+{
+    if (fIndex == -1) {
+        return NO;
+    }
+
+    return isChildSelected(env, ((JavaElementAccessibility *) [self parent])->fAccessible, fIndex, fComponent);
+}
+
+- (BOOL)isSelectable:(JNIEnv *)env
+{
+    jobject axContext = [self axContextWithEnv:env];
+    BOOL selectable = isSelectable(env, axContext, fComponent);
+    (*env)->DeleteLocalRef(env, axContext);
+    return selectable;
+}
+
+- (BOOL)isVisible:(JNIEnv *)env
+{
+    if (fIndex == -1) {
+        return NO;
+    }
+
+    jobject axContext = [self axContextWithEnv:env];
+    BOOL showing = isShowing(env, axContext, fComponent);
+    (*env)->DeleteLocalRef(env, axContext);
+    return showing;
+}
+
+// -- misc accessibility --
+- (BOOL)accessibilityIsIgnored
+{
+#ifdef JAVA_AX_NO_IGNORES
+    return NO;
+#else
+    return [[self accessibilityRoleAttribute] isEqualToString:JavaAccessibilityIgnore];
+#endif /* JAVA_AX_NO_IGNORES */
+}
+
+- (id)accessibilityHitTest:(NSPoint)point withEnv:(JNIEnv *)env
+{
+    static JNF_CLASS_CACHE(jc_Container, "java/awt/Container");
+    static JNF_STATIC_MEMBER_CACHE(jm_accessibilityHitTest, sjc_CAccessibility, "accessibilityHitTest", "(Ljava/awt/Container;FF)Ljavax/accessibility/Accessible;");
+
+    // Make it into java screen coords
+    point.y = [[[[self view] window] screen] frame].size.height - point.y;
+
+    jobject jparent = fComponent;
+
+    id value = nil;
+    if (JNFIsInstanceOf(env, jparent, &jc_Container)) {
+        jobject jaccessible = JNFCallStaticObjectMethod(env, jm_accessibilityHitTest, jparent, (jfloat) point.x, (jfloat) point.y); // AWT_THREADING Safe (AWTRunLoop)
+        if (jaccessible != NULL) {
+            value = [JavaElementAccessibility createWithAccessible:jaccessible withEnv:env withView:fView];
+            (*env)->DeleteLocalRef(env, jaccessible);
+        }
+    }
+
+    if (value == nil) {
+        value = self;
+    }
+
+    if ([value accessibilityIsIgnored]) {
+        value = NSAccessibilityUnignoredAncestor(value);
+    }
+
+#ifdef JAVA_AX_DEBUG
+    NSLog(@"%s: %@", __FUNCTION__, value);
+#endif
+    return value;
+}
+
+- (id)accessibilityFocusedUIElement
+{
+    static JNF_STATIC_MEMBER_CACHE(jm_getFocusOwner, sjc_CAccessibility, "getFocusOwner", "(Ljava/awt/Component;)Ljavax/accessibility/Accessible;");
+
+    JNIEnv *env = [ThreadUtilities getJNIEnv];
+    id value = nil;
+
+    NSWindow *hostWindow = [[self->fView window] retain];
+    jobject focused = JNFCallStaticObjectMethod(env, jm_getFocusOwner, fComponent); // AWT_THREADING Safe (AWTRunLoop)
+    [hostWindow release];
+
+    if (focused != NULL) {
+        if (JNFIsInstanceOf(env, focused, &sjc_Accessible)) {
+            value = [JavaElementAccessibility createWithAccessible:focused withEnv:env withView:fView];
+        }
+        (*env)->DeleteLocalRef(env, focused);
+    }
+
+    if (value == nil) {
+        value = self;
+    }
+#ifdef JAVA_AX_DEBUG
+    NSLog(@"%s: %@", __FUNCTION__, value);
+#endif
+    return value;
+}
+
+@end
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessibility
+ * Method:    focusChanged
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessibility_focusChanged
+(JNIEnv *env, jobject jthis)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(postFocusChanged:) on:[JavaElementAccessibility class] withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessible
+ * Method:    valueChanged
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_valueChanged
+(JNIEnv *env, jclass jklass, jlong element)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(postValueChanged) on:(JavaElementAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessible
+ * Method:    selectedTextChanged
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_selectedTextChanged
+(JNIEnv *env, jclass jklass, jlong element)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(postSelectedTextChanged) on:(JavaElementAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessible
+ * Method:    selectionChanged
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_selectionChanged
+(JNIEnv *env, jclass jklass, jlong element)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(postSelectionChanged) on:(JavaElementAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessible
+ * Method:    menuOpened
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_menuOpened
+(JNIEnv *env, jclass jklass, jlong element)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(postMenuOpened) on:(JavaElementAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessible
+ * Method:    menuClosed
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_menuClosed
+(JNIEnv *env, jclass jklass, jlong element)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(postMenuClosed) on:(JavaElementAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessible
+ * Method:    menuItemSelected
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_menuItemSelected
+(JNIEnv *env, jclass jklass, jlong element)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(postMenuItemSelected) on:(JavaElementAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CAccessible
+ * Method:    unregisterFromCocoaAXSystem
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CAccessible_unregisterFromCocoaAXSystem
+(JNIEnv *env, jclass jklass, jlong element)
+{
+JNF_COCOA_ENTER(env);
+    [ThreadUtilities performOnMainThread:@selector(unregisterFromCocoaAXSystem) on:(JavaElementAccessibility *)jlong_to_ptr(element) withObject:nil waitUntilDone:NO];
+JNF_COCOA_EXIT(env);
+}

src/java.desktop/macosx/native/libawt_lwawt/awt/JavaListAccessibility.h

@@ -0,0 +1,16 @@
+// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+
+#ifndef NATIVE_JAVALISTACCESSIBILITY_H
+#define NATIVE_JAVALISTACCESSIBILITY_H
+
+#endif // NATIVE_JAVALISTACCESSIBILITY_H
+
+#import "JavaElementAccessibility.h"
+
+@interface JavaListAccessibility : JavaElementAccessibility<NSAccessibilityList> {
+}
+@end
+
+//@interface JavaRowAccessibility : JavaElementAccessibility<NSAccessibilityRow> {
+//}
+//@end

src/java.desktop/macosx/native/libawt_lwawt/awt/JavaListAccessibility.m

@@ -0,0 +1,51 @@
+// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+
+#import "JavaListAccessibility.h"
+#import "ThreadUtilities.h"
+
+@implementation JavaListAccessibility
+
+- (nullable NSArray<id<NSAccessibilityRow>> *)accessibilityRows
+{
+    JNIEnv *env = [ThreadUtilities getJNIEnv];
+    NSArray *children = [JavaElementAccessibility childrenOfParent:self
+                                                           withEnv:env
+                                                  withChildrenCode:JAVA_AX_ALL_CHILDREN
+                                                      allowIgnored:NO];
+    NSArray *value = nil;
+    if ([children count] > 0) {
+        value = children;
+    }
+    return value;
+}
+
+- (BOOL)isAccessibilityElement
+{
+    return YES;
+}
+
+- (NSString *)accessibilityLabel
+{
+    return @"List";
+}
+
+- (NSArray *)accessibilitySelectedChildren
+{
+    JNIEnv *env = [ThreadUtilities getJNIEnv];
+    NSArray *selectedChildren = [JavaElementAccessibility childrenOfParent:self withEnv:env withChildrenCode:JAVA_AX_SELECTED_CHILDREN allowIgnored:NO];
+    if ([selectedChildren count] > 0) {
+        return selectedChildren;
+    }
+
+    return nil;
+}
+
+- (NSRect)accessibilityFrame
+{
+    return [super accessibilityFrame]; // todo: implement
+}
+
+@end
+
+//@implementation JavaRowAccessibility
+//@end