Pressing the enter key at the
jsp page receive extra invalid data at the ProdController.java.
The alertgroupStr receive "unack" as expected.
However, I do not understand why alertgroupStr receive the extra invalid "null" later.
Debug log:
11:14:52,187 DEBUG com.systems.monitoring.war.ProdController:54 - alertgroupStr unack
...
11:14:52,187 DEBUG com.systems.monitoring.war.ProdController:54 - alertgroupStr null
ProdController.java:
Jsp page: