Kbase 18445: Apptivity - NullPointerException When Starting Application
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
2/17/2004 |
|
Status: Unverified
FACT(s) (Environment):
Apptivity
SYMPTOM(s):
NullPointerException when starting application
CAUSE:
Frequently, getting a NullPointerException at startup of an application is due to a timing issue: the application is attempting to access a Data Source before the Data Source is ready.
FIX:
The method abEnv.blockOnInitComplete() blocks the current thread until the application's initialization of the server session is complete.
So to avoid the NullPointerException, in the application's init() method, immediately before the project is initialized by the line:
prj.init();
insert the following line:
theApp().blockOnInitComplete();