Summary: Initialize suppressedExceptions field to null
Reviewed-by: briangoetz, dholmes, forax

Reviewed-by: alanb, forax, jjb

6911261: Project Coin: Retrofit Automatic Resource Management (ARM) support onto platform APIs
6962571: Infinite loop in printing out Throwable stack traces with circular references
Reviewed-by: darcy, alanb
Contributed-by: jjb@google.com

Reviewed-by: darcy, weijun

Reviewed-by: dholmes

6511515: poor performance of LogRecord.inferCaller depending on java.lang.Throwable.getStackTraceElement
Summary: Allow random access to stack trace elements; retrieve only needed ones
Reviewed-by: swamyv
Contributed-by: jeremymanson@google.com