about uscontact

Fix the 'Unable to restore the previous TimeZone' error in GWT

Author: zemna
Date: April 17, 2021
Share this:

You may have following error message when you start Google App Engine Server.

[note] Initializing App Engine server [ERROR] Unable to start App Engine server java.lang.RuntimeException: Unable to restore the previous TimeZone at com.google.appengine.tools.development.DevAppServerImpl.restoreLocalTimeZone(DevAppServerImpl.java:228) at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:164) at com.google.appengine.tools.development.gwt.AppEngineLauncher.start(AppEngineLauncher.java:97) at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:509) at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1068) at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:811) at com.google.gwt.dev.DevMode.main(DevMode.java:311) Caused by: java.lang.NoSuchFieldException: defaultZoneTL at java.lang.Class.getDeclaredField(Class.java:1882) at com.google.appengine.tools.development.DevAppServerImpl.restoreLocalTimeZone(DevAppServerImpl.java:222) ... 6 more [ERROR] shell failed in doStartupServer method [/note]

The solution is to add an extra parameter in your virtual machine run configuration.

[note] -Dappengine.user.timezone=UTC [/note]


Share this:

Leave a Reply

Your email address will not be published.


Professional software development agency estalished in Indonesia. We offers website setup, web application development, fulfillment service, and etc.
Follow us
Follow us to get latest news and tutorials.
2022 - Copyright, All Rights Reserved, Made by ZEMNA.NET with ❤️