My Mac build is failing today. Maybe something changed with respect to the required SDK?
I refreshed my source and rebuilt and this is the output. Building target 'images' in configuration 'macosx-x86_64-normal-server-release' Compiling 776 files for jdk.xml.bind Compiling 1227 files for java.xml.ws /Users/petebrunet/JDK9/JDK-8076554/client/jdk/src/java.desktop/macosx/native/libosxapp/NSApplicationAWT.m:445:29: error: sending 'id<NSApplicationDelegate>' to parameter of incompatible type 'id<NSFileManagerDelegate>' [-Werror] [NSApp setDelegate: applicationDelegate]; ^~~~~~~~~~~~~~~~~~~ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSFileManager.h:109:47: note: passing argument to parameter 'delegate' here @property (assign) id <NSFileManagerDelegate> delegate NS_AVAILABLE(10_5, 2_0); ^ 1 error generated. make[3]: *** [/Users/petebrunet/JDK9/JDK-8076554/client/build/macosx-x86_64-normal-server-release/support/native/java.desktop/libosxapp/NSApplicationAWT.o] Error 1 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [java.desktop-libs] Error 2 make[2]: *** Waiting for unfinished jobs.... Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. ERROR: Build failed for target 'images' in configuration 'macosx-x86_64-normal-server-release' (exit code 2) === Output from failing command(s) repeated here === * For target support_native_java.desktop_libosxapp_NSApplicationAWT.o: /Users/petebrunet/JDK9/JDK-8076554/client/jdk/src/java.desktop/macosx/native/libosxapp/NSApplicationAWT.m:445:29: error: sending 'id<NSApplicationDelegate>' to parameter of incompatible type 'id<NSFileManagerDelegate>' [-Werror] [NSApp setDelegate: applicationDelegate]; ^~~~~~~~~~~~~~~~~~~ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSFileManager.h:109:47: note: passing argument to parameter 'delegate' here @property (assign) id <NSFileManagerDelegate> delegate NS_AVAILABLE(10_5, 2_0); ^ 1 error generated. === End of repeated output === No indication of failed target found. Hint: Try searching the build log for '] Error'. Hint: If caused by a warning, try configure --disable-warnings-as-errors. make[1]: *** [main] Error 2 make: *** [images] Error 2