1. The TZUpdater tool modifies the JDK/JRE software instance that is used to execute the tool. A single image of the JDK/JRE software is modified per execution. 

2. You must stop any running instances of the JDK/JRE software to be operated upon before you run the TZUpdater tool on that installed JDK/JRE software image.

3.1. First change the directory at the location where Java has been installed.

cd /app/database/product/11.2.0/dbhome_1/jdk/jre/bin/

3.2. Then run the TZUpdater tool with the following command to test the existing timezone settings:

java -jar tzupdater.jar -t

You will see result like this if at all there are any issues in the timezone:

/data/tzdata2014b.test:1367: test failed: Chile/EasterIsland

/data/tzdata2014b.test:1410: test failed: Pacific/Easter

/data/tzdata2014b.test:2858: time zone not found: Antarctica/Troll

/data/tzdata2014b.test:3529: time zone not found: Europe/Busingen

/data/tzdata2014b.test:5335: test failed: Pacific/Fiji

/data/tzdata2014b.test:5386: test failed: MIT

Validation tests failed.

4.1. First change the directory at the location where Java has been installed.

cd /app/database/product/11.2.0/dbhome_1/jdk/jre/bin/

4.2. Run the TZUpdater tool with the following command to update the timezone settings:

java -jar tzupdater.jar -u