[OSPL-Dev] error using a ContentFilteredTopic in Subscriber end..

[Ravi Chandran]

hi,
I have created a ContentFilteredTopic which I am trying to use in an
application. Now a similar application is working correctly using normal
topic. But when I run subscriber, i get this error::

csub2Wrapper$ContainerWrapperException: [FilteredTopic1Wrapper.start()] call
FilteredTopic1Wrapper.start failed. Reason: Expression parameters have not
been set
[csub2Wrapper.Participant1Wrapper.Subscriber1Wrapper.Reader1Wrapper.start()]
call FilteredTopic1Wrapper.start failed.

at
csub2Wrapper$Participant1Wrapper$Subscriber1Wrapper$Reader1Wrapper.start(csub2Wrapper.java:491)
at
csub2Wrapper$Participant1Wrapper$Subscriber1Wrapper.start(csub2Wrapper.java:352)
at csub2Wrapper$Participant1Wrapper.start(csub2Wrapper.java:187)
at csub2Wrapper.start(csub2Wrapper.java:123)
at csub2.main(csub2.java:41)
Error occured while starting the application
Exception in thread "main" java.lang.NullPointerException
at csub2.main(csub2.java:52)


The cause seems to be the expression which I gave while creating the
ContentFilteredTopic : count>7. Is this expression wrong?