【发布时间】：2016-01-10 06:48:15
【问题描述】：
我正在尝试用 Java / LWJGL 制作一个简单的游戏。我正在关注在 Windows 上制作的教程，并且我使用的是 Mac。我复制了他为字符打开一个窗口字符的代码，程序立即崩溃，给我一个很长很奇怪的错误，可能与指针有关（我实际上不知道）。下面是用于创建窗口的行，我在属性中定义了宽度和高度：
window = glfwCreateWindow(width, height, "Flappy Bird", NULL, NULL);
当我在我的 mac 上运行它时，它给了我这个错误：
2015-10-12 13:18:38.475 java[496:31875] *** Assertion failure in + [NSUndoManager _endTopLevelGroupings], /SourceCache/Foundation/Foundation-1154/Misc.subproj/NSUndoManager.m:340
2015-10-12 13:18:38.476 java[496:31875] +[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread.
2015-10-12 13:18:38.476 java[496:31875] (
0 CoreFoundation 0x00007fff98c3003c __exceptionPreprocess + 172
1 libobjc.A.dylib 0x00007fff9620a76e objc_exception_throw + 43
2 CoreFoundation 0x00007fff98c2fe1a +[NSException raise:format:arguments:] + 106
3 Foundation 0x00007fff99f6199b -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 195
4 Foundation 0x00007fff99ee364f +[NSUndoManager(NSPrivate) _endTopLevelGroupings] + 156
5 AppKit 0x00007fff96ecbb95 -[NSApplication run] + 756
6 libglfw.dylib 0x000000010d597974 initializeAppKit + 1332
7 libglfw.dylib 0x000000010d597035 _glfwPlatformCreateWindow + 37
8 libglfw.dylib 0x000000010d59397b glfwCreateWindow + 443
9 ??? 0x0000000104411eee 0x0 + 4366343918
10 ??? 0x0000000104406929 0x0 + 4366297385
11 ??? 0x0000000104406929 0x0 + 4366297385
12 ??? 0x0000000104406929 0x0 + 4366297385
13 ??? 0x000000010440685a 0x0 + 4366297178
14 ??? 0x0000000104406d34 0x0 + 4366298420
)
2015-10-12 13:18:38.477 java[496:31875] *** Assertion failure in +[NSUndoManager _endTopLevelGroupings], /SourceCache/Foundation/Foundation-1154/Misc.subproj/NSUndoManager.m:340
2015-10-12 13:18:38.477 java[496:31875] An uncaught exception was raised
2015-10-12 13:18:38.477 java[496:31875] +[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread.
2015-10-12 13:18:38.477 java[496:31875] (
0 CoreFoundation 0x00007fff98c3003c __exceptionPreprocess + 172
1 libobjc.A.dylib 0x00007fff9620a76e objc_exception_throw + 43
2 CoreFoundation 0x00007fff98c2fe1a +[NSException raise:format:arguments:] + 106
3 Foundation 0x00007fff99f6199b -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 195
4 Foundation 0x00007fff99ee364f +[NSUndoManager(NSPrivate) _endTopLevelGroupings] + 156
5 AppKit 0x00007fff96ecbc41 -[NSApplication run] + 928
6 libglfw.dylib 0x000000010d597974 initializeAppKit + 1332
7 libglfw.dylib 0x000000010d597035 _glfwPlatformCreateWindow + 37
8 libglfw.dylib 0x000000010d59397b glfwCreateWindow + 443
9 ??? 0x0000000104411eee 0x0 + 4366343918
10 ??? 0x0000000104406929 0x0 + 4366297385
11 ??? 0x0000000104406929 0x0 + 4366297385
12 ??? 0x0000000104406929 0x0 + 4366297385
13 ??? 0x000000010440685a 0x0 + 4366297178
14 ??? 0x0000000104406d34 0x0 + 4366298420
)
2015-10-12 13:18:38.478 java[496:31875] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '+[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread.'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff98c3003c __exceptionPreprocess + 172
1 libobjc.A.dylib 0x00007fff9620a76e objc_exception_throw + 43
2 CoreFoundation 0x00007fff98c2fe1a +[NSException raise:format:arguments:] + 106
3 Foundation 0x00007fff99f6199b -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 195
4 Foundation 0x00007fff99ee364f +[NSUndoManager(NSPrivate) _endTopLevelGroupings] + 156
5 AppKit 0x00007fff96ecbc41 -[NSApplication run] + 928
6 libglfw.dylib 0x000000010d597974 initializeAppKit + 1332
7 libglfw.dylib 0x000000010d597035 _glfwPlatformCreateWindow + 37
8 libglfw.dylib 0x000000010d59397b glfwCreateWindow + 443
9 ??? 0x0000000104411eee 0x0 + 4366343918
10 ??? 0x0000000104406929 0x0 + 4366297385
11 ??? 0x0000000104406929 0x0 + 4366297385
12 ??? 0x0000000104406929 0x0 + 4366297385
13 ??? 0x000000010440685a 0x0 + 4366297178
14 ??? 0x0000000104406d34 0x0 + 4366298420
)
libc++abi.dylib: terminating with uncaught exception of type NSException
还会弹出一个窗口，上面写着“java 在使用 libglfw.dylib 插件时意外退出。”
是我安装 LWJGL 错误还是我的代码有缺陷？感谢您的帮助！
<terminated>
【问题讨论】：
-
您不应忽略所有异常。在您现在只需返回的任何地方抛出异常或打印消息。您还应该使用glfwSetErrorCallback 设置错误回调并使用
-Dorg.lwjgl.util.Debug=true运行您的程序。