FULL PRODUCT VERSION :
build 1.8.0_60-b27

ADDITIONAL OS VERSION INFORMATION :
10.10.5

A DESCRIPTION OF THE PROBLEM :
I am running a Java SE Swing application which uses a mySQL JDBC driver for database connectivity. I can run the application from Eclipse and specify which JAVA SE is to be used for execution. I have noted a 30-80% significant slowdown of the application when it performs some network io as it does for jdbc access and determinig the computers own name using a command like :-

clientname = InetAddress.getLocalHost().getHostName();

The change in peformance is repeatable and is compared to the immediate prior release version 1.8.0_51

Reverting to prior java corrects the problem.

I noticed some references to network dns changes in 1.8.0_60 which might be relevant.

REGRESSION. Last worked in version 8u51

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Timed updates to jdbc (mysql) database - however :-

try
{
clientname = InetAddress.getLocalHost().getHostName().toLowerCase();
} catch (Exception e)
{
clientname = "unknown";


Takes longer on new JDK.


ERROR MESSAGES/STACK TRACES THAT OCCUR :
Serious performance hit effecting jdbc driver.

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Reverted to prior java