The compiler in the server VM now provides correct stack backtraces for all "cold" built-in exceptions. For performance purposes, when such an exception is thrown a few times, the method may be recompiled. After recompilation, the compiler may choose a faster tactic using preallocated exceptions that do not provide a stack trace. To disable completely the use of preallocated exceptions, use this new flag: -XX:-OmitStackTraceInFastThrow.
这里的"cold"，个人以为是与hotspot VM中hot相对的意思，意思是非热点内置异常。如果异常被抛出数次，就变成”hot“了，这时就会丢失异常信息，因为这时的异常是预先分配的。
在查找资料的时候，发现淘宝定制的vm对这个功能有个开关，可以动态切换是否禁用此项优化。
https://blog.csdn.net/taotao4/article/details/43918131