Please review the fix for:
6992121: StringBuilder.ensureCapacity(int minCap) throws
OutOfMemoryError with minCap=Integer.MIN_VALUE
Webrev at:
http://cr.openjdk.java.net/~mchung/6992121/webrev.00/
This is a regression caused by the changes for 6933217 (Huge arrays
handled poorly in core libraries). The ensureCapacity() method in the
StringBuffer, StringBuilder, ArrayList, and Vector classes are a public
API that accepts negative numbers. The following overflow-conscious code:
if (minimumCapacity - value.length> 0)
considers negative minimumCapacity as overflow case where OutOfMemoryError will
be thrown. So the implementation of the public ensureCapacity() methods need
to check if the input argument is positive before doing the above
overflow-conscious check.
Thanks
Mandy
