小编毛推自荐常用基本类型MACatchException，不足之处，欢迎指正。
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近期升级了几家第三方SDK，新版本上线后，友盟统计出现如下错误
-[AppMonitorTaskPool start]: attempt to start the thread again
*** -[AppMonitorTaskPool start]: attempt to start the thread again
(null)
((
0 CoreFoundation 0x0000000213085294 <redacted> + 252
1 libobjc.A.dylib 0x000000021225f9f8 objc_exception_throw + 56
2 CoreFoundation 0x0000000212f8f4b0 <redacted> + 0
3 Foundation 0x00000002139dc6ec <redacted> + 132
4 CoreFoundation 0x0000000212ff6318 <redacted> + 20
5 CoreFoundation 0x0000000212ff62e4 <redacted> + 64
6 CoreFoundation 0x0000000212ff57d8 <redacted> + 392
7 CoreFoundation 0x0000000212ff5484 <redacted> + 96
8 CoreFoundation 0x0000000212f6ed64 <redacted> + 1496
9 CoreFoundation 0x0000000212ff4f34 _CFXNotificationPost + 696
10 Foundation 0x00000002139dd7f4 <redacted> + 68
11 UIKitCore 0x000000023f83dd0c <redacted> + 1328
12 UIKitCore 0x000000023f10c4a0 <redacted> + 472
13 UIKitCore 0x000000023f10d188 _performActionsWithDelayForTransitionContext + 112
14 UIKitCore 0x000000023f10c25c <redacted> + 244
15 UIKitCore 0x000000023f110f5c <redacted> + 360
16 UIKitCore 0x000000023f441054 <redacted> + 464
17 FrontBoardServices 0x0000000215a015d8 <redacted> + 224
18 libdispatch.dylib 0x0000000212ac57d4 <redacted> + 16
19 libdispatch.dylib 0x0000000212a6a5d8 <redacted> + 224
20 FrontBoardServices 0x0000000215a3b040 <redacted> + 40
21 FrontBoardServices 0x0000000215a3acdc <redacted> + 408
22 FrontBoardServices 0x0000000215a3b294 <redacted> + 52
23 CoreFoundation 0x0000000213017018 <redacted> + 24
24 CoreFoundation 0x0000000213016f98 <redacted> + 88
25 CoreFoundation 0x0000000213016880 <redacted> + 176
26 CoreFoundation 0x00000002130117bc <redacted> + 1004
27 CoreFoundation 0x00000002130110b0 CFRunLoopRunSpecific + 436
28 GraphicsServices 0x000000021521179c GSEventRunModal + 104
29 UIKitCore 0x000000023f847978 UIApplicationMain + 212
30 xxx 0x0000000104f568f0 xxx + 3303664
31 libdyld.dylib 0x0000000212ad68e0 <redacted> + 4
)
dSYM UUID: 515BDE4D-BECB-39B3-98AE-41D4F096F0DC
CPU Type: arm64
Slide Address: 0x0000000100000000
Binary Image: xxx
Base Address: 0x0000000104c30000
了解后没什么收获，但发现有类似错误
*** -[NSTread start]: attempt to start the thread again
经了解发现 AppMonitorTaskPool 是NSTread的子类，为了规避这个错误，自定义NSThread【分类】，通过【RunTime-方法替换】方式，重新定义了start方法。到目前为止，断点调试，仅发现下图调用堆栈中有AppMonitorTaskPool的使用
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该方法能避免常见crash，并将crash信息发送给server，准确定位。
重点介绍RunTime-方法替换
常用基本类型MACatchException，不足之处，欢迎指正。
当前工程选用了最高编译策略
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