Administration console - completed tasks are not shown in task history right away

Steps to reproduce:

• start domain.sh
• start cli.sh -> deploy /path/to/attached/jar/local-task.jar --all-server-groups
• in administration console -> click on cache container -> task execution -> Launch new task -> fill in the form: task = LocalTask, Cache= default, Originator node: master:server-one, Parameter1: param; value -> Click Launch task (Success! The task has been successfully launched is displayed) -> click close -> click on Task history

result: the task is not there

Please note that the task will be displayed in task history after a few moments (about 20 seconds) or after log out -> log in action.
Javascript tasks are displayed in history right away.