8190329: [macos] Swing InterOp Platform.exit() crash

Co-authored-by: Kevin Rushforth <kcr@openjdk.org>
Reviewed-by: kcr, azvegint

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2024, 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
@@ -117,12 +117,20 @@ AWT_ASSERT_APPKIT_THREAD;
     // don't install the EAWT delegate if another kind of NSApplication is installed, like say, Safari
     BOOL shouldInstall = NO;
     BOOL overrideDelegate = (getenv("AWT_OVERRIDE_NSDELEGATE") != NULL);
+    BOOL isApplicationOwner = NO;
     if (NSApp != nil) {
         if ([NSApp isMemberOfClass:[NSApplication class]] && overrideDelegate) shouldInstall = YES;
-        if ([NSApp isKindOfClass:[NSApplicationAWT class]]) shouldInstall = YES;
+        if ([NSApp isKindOfClass:[NSApplicationAWT class]]) {
+            shouldInstall = YES;
+            isApplicationOwner = YES;
+        }
     }
     checked = YES;
-    if (!shouldInstall) return nil;
+    if (!shouldInstall) {
+        [ThreadUtilities setApplicationOwner:NO];
+        return nil;
+    }
+    [ThreadUtilities setApplicationOwner:isApplicationOwner];
 
     sApplicationDelegate = [[ApplicationDelegate alloc] init];
     return sApplicationDelegate;

src/java.desktop/macosx/native/libosxapp/ThreadUtilities.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2024, 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
@@ -131,6 +131,7 @@ __attribute__((visibility("default")))
 + (JNIEnv*)getJNIEnvUncached;
 + (void)detachCurrentThread;
 + (void)setAppkitThreadGroup:(jobject)group;
++ (void)setApplicationOwner:(BOOL)owner;
 
 + (void)performOnMainThreadWaiting:(BOOL)wait block:(void (^)())block;
 + (void)performOnMainThread:(SEL)aSelector on:(id)target withObject:(id)arg waitUntilDone:(BOOL)wait;

src/java.desktop/macosx/native/libosxapp/ThreadUtilities.m

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2024, 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
@@ -31,6 +31,7 @@
 
 // The following must be named "jvm", as there are extern references to it in AWT
 JavaVM *jvm = NULL;
+static BOOL isNSApplicationOwner = NO;
 static JNIEnv *appKitEnv = NULL;
 static jobject appkitThreadGroup = NULL;
 static NSString* JavaRunLoopMode = @"AWTRunLoopMode";
@@ -59,12 +60,20 @@ static inline void attachCurrentThread(void** env) {
                                            nil];
 }
 
++ (void)setApplicationOwner:(BOOL)owner {
+    isNSApplicationOwner = owner;
+}
+
 + (JNIEnv*)getJNIEnv {
 AWT_ASSERT_APPKIT_THREAD;
-    if (appKitEnv == NULL) {
-        attachCurrentThread((void **)&appKitEnv);
+    if (isNSApplicationOwner) {
+        if (appKitEnv == NULL) {
+            attachCurrentThread((void **)&appKitEnv);
+        }
+        return appKitEnv;
+    } else {
+        return [ThreadUtilities getJNIEnvUncached];
     }
-    return appKitEnv;
 }
 
 + (JNIEnv*)getJNIEnvUncached {