Replace deprecated native methods in macOS implementation

[HannesWell]

The SWT implementation for macOS currently referenced multiple deprecated native API methods:

• CFURLCreateFromFSRef is deprecated

os.c:1102:14: warning: 'CFURLCreateFromFSRef' is deprecated: first deprecated in macOS 10.9 - Not supported [-Wdeprecated-declarations]
        rc = (jlong)CFURLCreateFromFSRef((CFAllocatorRef)arg0, (FSRef*)lparg1);
                    ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFURL.h:484:10: note: 'CFURLCreateFromFSRef' has been explicitly marked deprecated here
CFURLRef CFURLCreateFromFSRef(CFAllocatorRef allocator, const struct FSRef *fsRef) API_DEPRECATED("Not supported", macos(10.0,10.9), ios(2.0,7.0), watchos(2.0,2.0), tvos(9.0,9.0));
         ^

• Targeted with
  [Cocoa] Replace deprecated LSGetApplicationForInfo in Program.findProgram #3187

• GetCurrentProcess is deprecated

os.c:1920:13: warning: 'GetCurrentProcess' is deprecated: first deprecated in macOS 10.9 [-Wdeprecated-declarations]
        rc = (jint)GetCurrentProcess((ProcessSerialNumber *)lparg0);
                   ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/ApplicationServices.framework/Frameworks/HIServices.framework/Headers/Processes.h:415:1: note: 'GetCurrentProcess' has been explicitly marked deprecated here
MacGetCurrentProcess(ProcessSerialNumber * PSN)               AVAILABLE_MAC_OS_X_VERSION_10_0_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_9;
^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/ApplicationServices.framework/Frameworks/HIServices.framework/Headers/Processes.h:412:34: note: expanded from macro 'MacGetCurrentProcess'
    #define MacGetCurrentProcess GetCurrentProcess
                                 ^

• LSGetApplicationForInfo is deprecated

os.c:2119:14: warning: 'LSGetApplicationForInfo' is deprecated: first deprecated in macOS 10.10 - Use -[NSWorkspace URLForApplicationToOpenContentType:] instead. [-Wdeprecated-declarations]
        rc = (jlong)LSGetApplicationForInfo((OSType)arg0, (OSType)arg1, (CFStringRef)arg2, (LSRolesMask)arg3, (FSRef *)lparg4, (CFURLRef *)lparg5);
                    ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Headers/LSInfoDeprecated.h:611:1: note: 'LSGetApplicationForInfo' has been explicitly marked deprecated here
LSGetApplicationForInfo(
^

• Targeted with
  [Cocoa] Replace deprecated LSGetApplicationForInfo in Program.findProgram #3187

• NSPrintSavePath is deprecated

os.c:4040:14: warning: 'NSPrintSavePath' is deprecated: first deprecated in macOS 10.6 - Use NSPrintJobSavingURL instead [-Wdeprecated-declarations]
        rc = (jlong)NSPrintSavePath;
                    ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPrintInfo.h:197:32: note: 'NSPrintSavePath' has been explicitly marked deprecated here
APPKIT_EXTERN NSString * const NSPrintSavePath API_DEPRECATED("Use NSPrintJobSavingURL instead", macos(10.0,10.6));
                               ^

• SecPolicySearchCopyNext is deprecated

os.c:4678:13: warning: 'SecPolicySearchCopyNext' is deprecated: first deprecated in macOS 10.7 [-Wdeprecated-declarations]
        rc = (jint)SecPolicySearchCopyNext((SecPolicySearchRef)arg0, (SecPolicyRef *)lparg1);
                   ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Security.framework/Headers/SecPolicySearch.h:78:10: note: 'SecPolicySearchCopyNext' has been explicitly marked deprecated here
OSStatus SecPolicySearchCopyNext(SecPolicySearchRef searchRef, SecPolicyRef * __nonnull CF_RETURNS_RETAINED policyRef)
         ^

• SecPolicySearchCreate is deprecated

os.c:4694:13: warning: 'SecPolicySearchCreate' is deprecated: first deprecated in macOS 10.7 [-Wdeprecated-declarations]
        rc = (jint)SecPolicySearchCreate((CSSM_CERT_TYPE)arg0, (CSSM_OID *)arg1, (CSSM_DATA *)arg2, (SecPolicySearchRef *)lparg3);
                   ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Security.framework/Headers/SecPolicySearch.h:67:10: note: 'SecPolicySearchCreate' has been explicitly marked deprecated here
OSStatus SecPolicySearchCreate(CSSM_CERT_TYPE certType, const CSSM_OID *policyOID, const CSSM_DATA * __nullable value, SecPolicySearchRef * __nonnull CF_RETURNS_RETAINED searchRef)
         ^

• WebView is deprecated

os.c:998:67: warning: 'WebView' is deprecated: first deprecated in macOS 10.14 - No longer supported; please adopt WKWebView. [-Wdeprecated-declarations]
  998 | static void proc_CALLBACK_1webView_1setFrame_1(id arg0, SEL arg1, WebView* arg2, NSRect arg3) {
      |                                                                   ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/WebKit.framework/Headers/WebView.h:119:12: note: 'WebView' has been explicitly marked deprecated here
  119 | @interface WebView : NSView
      |            ^

• WebView is deprecated

os.c:999:22: warning: 'WebView' is deprecated: first deprecated in macOS 10.14 - No longer supported; please adopt WKWebView. [-Wdeprecated-declarations]
  999 |         ((void (*)(id, SEL, WebView*, NSRect*))CALLBACK_1webView_1setFrame_1)(arg0, arg1, arg2, &arg3);
      |                             ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/WebKit.framework/Headers/WebView.h:119:12: note: 'WebView' has been explicitly marked deprecated here
  119 | @interface WebView : NSView
      |            ^

• CFURLCreateStringByAddingPercentEscapes is deprecated

os.c:1116:14: warning: 'CFURLCreateStringByAddingPercentEscapes' is deprecated: first deprecated in macOS 10.11 - Use [NSString stringByAddingPercentEncodingWithAllowedCharacters:] instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent (since each URL component or subcomponent has different rules for what characters are valid). [-Wdeprecated-declarations]
 1116 |         rc = (jlong)CFURLCreateStringByAddingPercentEscapes((CFAllocatorRef)arg0, (CFStringRef)arg1, (CFStringRef)arg2, (CFStringRef)arg3, (CFStringEncoding)arg4);
      |                     ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFURL.h:408:13: note: 'CFURLCreateStringByAddingPercentEscapes' has been explicitly marked deprecated here
  408 | CFStringRef CFURLCreateStringByAddingPercentEscapes(CFAllocatorRef allocator, CFStringRef originalString, CFStringRef charactersToLeaveUnescaped, CFStringRef legalURLCharactersToBeEscaped, CFStringEncoding encoding) API_DEPRECATED("Use [NSString stringByAddingPercentEncodingWithAllowedCharacters:] instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent (since each URL component or subcomponent has different rules for what characters are valid).", macos(10.0,10.11), ios(2.0,9.0), watchos(2.0,2.0), tvos(9.0,9.0));
      |             ^

• NSDragPboard is deprecated

os.c:3666:14: warning: 'NSDragPboard' is deprecated: first deprecated in macOS 10.13 [-Wdeprecated-declarations]
 3666 |         rc = (jlong)NSDragPboard;
      |                     ^~~~~~~~~~~~
      |                     NSPasteboardNameDrag
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:531:32: note: 'NSDragPboard' has been explicitly marked deprecated here
  531 | APPKIT_EXTERN NSPasteboardName NSDragPboard API_DEPRECATED_WITH_REPLACEMENT("NSPasteboardNameDrag", macos(10.0,10.13));
      |                                ^

• NSFilenamesPboardType is deprecated

os.c:3709:14: warning: 'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14 - Create multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead [-Wdeprecated-declarations]
 3709 |         rc = (jlong)NSFilenamesPboardType;
      |                     ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:505:32: note: 'NSFilenamesPboardType' has been explicitly marked deprecated here
  505 | APPKIT_EXTERN NSPasteboardType NSFilenamesPboardType API_DEPRECATED("Create multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead", macos(10.0,10.14));
      |                                ^

• NSTIFFPboardType is deprecated

os.c:4186:14: warning: 'NSTIFFPboardType' is deprecated: first deprecated in macOS 10.14 [-Wdeprecated-declarations]
 4186 |         rc = (jlong)NSTIFFPboardType;
      |                     ^~~~~~~~~~~~~~~~
      |                     NSPasteboardTypeTIFF
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:506:32: note: 'NSTIFFPboardType' has been explicitly marked deprecated here
  506 | APPKIT_EXTERN NSPasteboardType NSTIFFPboardType API_DEPRECATED_WITH_REPLACEMENT("NSPasteboardTypeTIFF", macos(10.0,10.14));
      |                                ^

• NSURLPboardType is deprecated

os.c:4222:14: warning: 'NSURLPboardType' is deprecated: first deprecated in macOS 10.14 [-Wdeprecated-declarations]
 4222 |         rc = (jlong)NSURLPboardType;
      |                     ^~~~~~~~~~~~~~~
      |                     NSPasteboardTypeURL
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:514:32: note: 'NSURLPboardType' has been explicitly marked deprecated here
  514 | APPKIT_EXTERN NSPasteboardType NSURLPboardType API_DEPRECATED_WITH_REPLACEMENT("NSPasteboardTypeURL", macos(10.0,10.14));
      |                                ^

• NSViewGlobalFrameDidChangeNotification is deprecated

os.c:4258:14: warning: 'NSViewGlobalFrameDidChangeNotification' is deprecated: first deprecated in macOS 10.14 - Use NSOpenGLView instead. [-Wdeprecated-declarations]
 4258 |         rc = (jlong)NSViewGlobalFrameDidChangeNotification;
      |                     ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSView.h:668:34: note: 'NSViewGlobalFrameDidChangeNotification' has been explicitly marked deprecated here
  668 | APPKIT_EXTERN NSNotificationName NSViewGlobalFrameDidChangeNotification API_DEPRECATED("Use NSOpenGLView instead.", macos(10.0,10.14));
      |                                  ^

• passing arguments to a function without a prototype is deprecated

os.c:4883:20: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
 4883 |         ((void (*)())arg0)(arg1, arg2);
      |                           ^

• cast of type SEL _Nonnull [...] is deprecated

os.c:7648:14: warning: cast of type 'SEL _Nonnull' to 'jlong' (aka 'long') is deprecated; use sel_getName instead [-Wcast-of-sel-type]
        rc = (jlong)sel_registerName(lparg0);
                    ^~~~~~~~~~~~~~~~~~~~~~~~

• Targeted with
  [Cocoa] Fix deprecated SEL cast in sel_registerName (issue #3186) #3194

• OSAtomicIncrement32 is deprecated

callback.c:1968:2: warning: 'OSAtomicIncrement32' is deprecated: first deprecated in macOS 10.12 - Use atomic_fetch_add_explicit(memory_order_relaxed) from <stdatomic.h> instead [-Wdeprecated-declarations]
 1968 |         ATOMIC_INC(callbackEntryCount);
      |         ^
callback.c:49:27: note: expanded from macro 'ATOMIC_INC'
   49 | #define ATOMIC_INC(value) OSAtomicIncrement32(&value);
      |                           ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/libkern/OSAtomicDeprecated.h:173:9: note: 'OSAtomicIncrement32' has been explicitly marked deprecated here
  173 | int32_t OSAtomicIncrement32( volatile int32_t *__theValue );
      |         ^

• Targeted with
  [Cocoa] Replace deprecated OSAtomicIncrement32/OSAtomicDecrement32 in callback.c #3213

• OSAtomicDecrement32 is deprecated

callback.c:1999:2: warning: 'OSAtomicDecrement32' is deprecated: first deprecated in macOS 10.12 - Use atomic_fetch_sub_explicit(memory_order_relaxed) from <stdatomic.h> instead [-Wdeprecated-declarations]
 1999 |         ATOMIC_DEC(callbackEntryCount);
      |         ^
callback.c:50:27: note: expanded from macro 'ATOMIC_DEC'
   50 | #define ATOMIC_DEC(value) OSAtomicDecrement32(&value);
      |                           ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/libkern/OSAtomicDeprecated.h:192:9: note: 'OSAtomicDecrement32' has been explicitly marked deprecated here
  192 | int32_t OSAtomicDecrement32( volatile int32_t *__theValue );
      |         ^

• Targeted with
  [Cocoa] Replace deprecated OSAtomicIncrement32/OSAtomicDecrement32 in callback.c #3213

In total 18 (16 + 2) warnings are generated.
It would be good to replace them as it would allow us to fail on all kind of warnings.

[HeikoKlare]

Analysis of deprecated API usages in SWT macOS/Cocoa implementation

All deprecated APIs are declared as native methods in OS.java (bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java) and auto-generated into os.c.

Deprecated API	Deprecated since	Call site	Proposed replacement	Complexity
NSPrintSavePath	macOS 10.6	Printer.java:233, PrintDialog.java:182,220	NSPrintJobSavingURL	Simple — constant rename, but NSPrintJobSavingURL stores a URL rather than a path, so type handling in the call sites needs adjustment
SecPolicySearchCreate / SecPolicySearchCopyNext	macOS 10.7	WebKit.java:706-710	SecPolicyCreateSSL	Complex — significant Security framework API change
GetCurrentProcess	macOS 10.9	Display.java:986-987	NSRunningApplication.currentApplication or getpid()	Complex — used to set the process name via CPSSetProcessName; need to find a modern equivalent for that whole flow
CFURLCreateFromFSRef	macOS 10.9	Program.java:78-83	Can be removed together with LSGetApplicationForInfo	Medium — remove as part of LSGetApplicationForInfo replacement
LSGetApplicationForInfo	macOS 10.10	Program.java:77-83	NSWorkspace URLForApplicationToOpenURL:options:configuration:completionHandler:	Medium — URL-based lookup replaces FSRef-based lookup; async API may require restructuring
SEL→jlong cast	—	os.c (generated)	Use sel_getName in the generated C code	Simple — mechanical change in code generation

Analysis performed with the assistance of Claude (claude-sonnet-4-6).

[HannesWell]

Analysis performed with the assistance of Claude (claude-sonnet-4-6).

Thanks for the analysis, I also wanted to use this as an experiment to gain experience with the Copilot agent. Looks like I wasn't the only one with that idea😅
But I see there are still some tasks left and please don't hesitate to continue.

Btw. my proposal for the path forward is

1. Get the new mac agents fully effective
2. Update the minimum deployment target for mac
3. Fix all deprecation warnings
4. Build mac artifacts with -Werror once all warnings are fixed to catch future new warnings.

[HeikoKlare]

I'm sorry I took your chance to experiment. You may also run Copilot (with a different model than Sonnet) against the original post (just the warnings) again and see if it yields a similar analysis result and proposal than Claude did.
I just kicked off an agent to do one of the replacements, so there should still be 5 left 🙂 And I am on vacation most of the time until next Thursday, so I won't start to work on (or let work on) further ones.

[HannesWell]

Checking the latest native builds again, we have now in total 18 deprecation warnings in the native code for macOS. Probably due to the newer build agents.
I've updated the list and split each warning into an own task and linked already existing PRs.