The crash happened outside the Java Virtual Machine in native code.
See problematic frame for where to report the bug. # AL lib: (EE) alc_cleanup: 1 device not closed Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
This is what it informs me after a crash
Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
An error report file with more information is saved as:
C:\Users\John\AppData\Roaming\.minecraft\hs_err_pid9944.log
#
If you would like to submit a bug report, please visit:
http://bugreport.sun.com/bugreport/crash.jsp
The crash happened outside the Java Virtual Machine in native code.
See problematic frame for where to report the bug.
#
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release