After the DBA patched the oracle with the missing timezone patches, The above (...timezoneAsRegion=false) was no longer needed.
For Spring-Boot Application - // add below two lines
@SpringBootApplicationpublic class Application {public static void main(String[] args) {// add below two linesSystem.out.println("Setting the timezone"+TimeZone.getTimeZone("GMT+9:00").getID());TimeZone.setDefault(TimeZone.getTimeZone("GMT+9:00"));SpringApplication.run(Application.class, args);}}