RFR : JDK-8204661 - Show error 'Port already in use' in HashedPasswordFileTest.java

[mandy chung]

On 6/20/18 1:14 AM, Harsha Wardhana B wrote:
> Hi,
> 
> Please find the fix below for the bug
> 
> JDK-8204661 : Show error 'Port already in use' in 
> HashedPasswordFileTest.java
> 
> having webrev at,
> 
> http://cr.openjdk.java.net/~hb/8204661/webrev.00/
> 
> The problem root-cause is discussed in the comments section of the bug.
> 
> The fix above lets the default agent pick a free port by passing 
> 'port=0' value and then reads the JMX Connector URL from Perf Counters.

This looks fine.  Please add this issue number to @bug.

This is interesting.  I was not aware of setting port=0 will auto-assign 
a free port.  Do you know if it was added for testing purpose (which I 
assume so)?

For example 
test/jdk/sun/management/jmxremote/bootstrap/RmiBootstrapTest.java uses 
jdk.testlibrary.Utils.getFreePort() to get a free port number.

Mandy