FULL PRODUCT VERSION :
root@cncd-av-vm-229-118:~/#: which java
/usr/bin/java

root@cncd-av-vm-229-118:~/#: java -version
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
root@cncd-av-vm-229-118:~/#: cat /etc/issue.net
Welcome to SUSE Linux Enterprise Server 11 SP4 (x86_64) - Kernel %r (%t).

root@cncd-av-vm-229-118:~/#: uname -a
Linux cncd-av-vm-229-118.ccoe.lab.emc.com 3.0.101-108.13-default #1 SMP Wed Oct 11 12:30:40 UTC 2017 (294ccfe) x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
Regression test failed due to timezone "Canada/East-Saskatchewan" not list as expected since upgrading original java version from "1.8.0_144" to "1.8.0_161".

RCA the issue, and I found that all expected timezones are listed by directly invoking the method in java.util.TimeZone.getAvailableIDs().

Then I wrote a test, running it in above 2 versions respectively, the former works fine as expected, the later doesn't work.

BTW, not sure if it works fine in 1.8.0_151.




STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
public class TimezoneGetAvailableIDsTest {

    static String[] expectedTimeZones = new String[] {"Canada/East-Saskatchewan"}; // default

    public static void main(String[] args) {

        if (args.length > 0) {
            expectedTimeZones = args;
        }

        List<String> availableIDs = Arrays.asList(TimeZone.getAvailableIDs());
        System.out.println("Available timezone list: \n" + availableIDs);
        for (String expectedTimeZone : expectedTimeZones) {
            if (availableIDs.contains(expectedTimeZone)) {
                System.out.println("Found expected timezone: " + expectedTimeZone);
            }
        }
    }
}

>java -jar TimezoneGetAvailableIDsTest.jar

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Should have been with the following log output:

>Found expected timezone: Canada/East-Saskatchewan
ACTUAL -
Without above expected log output.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package com.dellemc;

import java.util.Arrays;
import java.util.List;
import java.util.TimeZone;

public class TimezoneGetAvailableIDsTest {

    static String[] expectedTimeZones = new String[] {"Canada/East-Saskatchewan"}; // default

    public static void main(String[] args) {

        if (args.length > 0) {
            expectedTimeZones = args;
        }

        List<String> availableIDs = Arrays.asList(TimeZone.getAvailableIDs());
        System.out.println("Available timezone list: \n" + availableIDs);
        for (String expectedTimeZone : expectedTimeZones) {
            if (availableIDs.contains(expectedTimeZone)) {
                System.out.println("Found expected timezone: " + expectedTimeZone);
            }
        }
    }

}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
N/A, except manually append lost timezone