Enable logging for java application in Google App Engine in order to use console

Configuring java.util.logging in appengine-web.xml is not enough.
You have to specify a log level for your package. For example:

/war/WEB-INF/logging.properties
# Set the default logging level for all loggers to WARNING
.level = WARNING
com.rudakovsky.smoke.server.level = INFO

Rolling back your Google App Engine deployment

If you failed to deploy your app to GAE successfully (i.e. lost connection while uploading) you can recover it using a rollback option:

java -cp "<path_to_jar>\appenginetools-api.jar" com.google.appengine.tools.admin.AppCfg rollback "<path_to_project>\war"

then enter your email and password



After that you can try to deploy your app once again.

Timezone GAE issue

Failed to start Google App Engine in Eclipse after updating java to 1.7 - timezone issue. Returned to java 1.6