(jaxp) RFR - 8025745: Clarify API documentation of JAXP factories.

[Daniel Fuchs]

Hi,

Please find below a fix for:
8025745: Clarify API documentation of JAXP factories. [1]

This is an API doc only changes which clarifies the usage of
ServiceLoader by JAXP factories - as was implemented by
JDK-8005954 [2]

Basically it makes it explicit in the doc that the
ServiceLoader will the TCCL - or if that is null, the system
class loader.

http://cr.openjdk.java.net/~dfuchs/webrev_8025745/webrev.00/

best regards

-- daniel
[1] https://bugs.openjdk.java.net/browse/JDK-8025745
[2] https://bugs.openjdk.java.net/browse/JDK-8005954