RFR (JDK10) 8183743: Umbrella: add overloads that take a Charset parameter

[Joe Wang]

Hi,

Adding convenient methods that take a Charset to several classes that 
have already had methods with a Charset/Encoding name as a parameter. To 
avoid any impact on compatibility and JCK tests, we've kept the existing 
methods virtually untouched except making a reference to the new ones to 
encourage the use of these new methods going forward. The javadocs of 
the new methods however, may be more complete with details on handling 
edge cases / Exceptions.

JBS: https://bugs.openjdk.java.net/browse/JDK-8183743
webrev: http://cr.openjdk.java.net/~joehw/jdk10/8183743/webrev/index.html

Thanks,
Joe