RE: Dataqueue Help

Are you trying to refer to the message but the queue was empty and the read
timed out so the message wasn't returned and the pointer was not set?

Richard Jackson
mailto:richardjackson@richardjackson.net
http://www.richardjacksonltd.com
Voice: 1 (303) 808-8058
Fax:   1 (303) 663-4325

-|-----Original Message-----
-|From: owner-java400-l@midrange.com
-|[mailto:owner-java400-l@midrange.com]On Behalf Of Gibbons, Michael
-|Sent: Monday, October 09, 2000 6:21 AM
-|To: 'JAVA400-L@midrange.com'
-|Subject: RE: Dataqueue Help
-|
-|
-|The exception is
-|
-|java.lang.NullPointerException
-|
-|
-|-----Original Message-----
-|From: owner-java400-l@midrange.com
-|[mailto:owner-java400-l@midrange.com]On Behalf Of Richard Jackson
-|Sent: Friday, October 06, 2000 5:30 PM
-|To: JAVA400-L@midrange.com
-|Subject: RE: Dataqueue Help
-|
-|
-|What exception are you getting when the queue is empty?
-|
-|Richard Jackson
-|mailto:richardjackson@richardjackson.net
-|http://www.richardjacksonltd.com
-|Voice: 1 (303) 808-8058
-|Fax:   1 (303) 663-4325
-|
-|-|-----Original Message-----
-|-|From: owner-java400-l@midrange.com
-|-|[mailto:owner-java400-l@midrange.com]On Behalf Of Gibbons, Michael
-|-|Sent: Friday, October 06, 2000 12:03 PM
-|-|To: 'Java-L'
-|-|Subject: Dataqueue Help
-|-|
-|-|
-|-|Hello,
-|-|
-|-|I am using a while loop to read a dataqueue and am having a
-|problem when I
-|-|empty the queue of records. I keep getting an exception when
-|the read() is
-|-|executed after all other records have been read.
-|-|
-|-|Does anyone know where I could get an example of reading data
-|queues in a
-|-|loop environment? The examples in the tool box manual show a
-|"wait on the
-|-|queue" technique or just a straight read. How do you handle the
-|exception?
-|-|
-|-|Thanks in Advance!
-|-|
-|-|
-|-|Michael P. Gibbons
-|-|Manager of Programming & Technical Services
-|-|MARYWOOD UNIVERSITY
-|-|2300 Adams Ave.
-|-|Scranton, PA 18509
-|-|
-|-|+---
-|-|| This is the JAVA/400 Mailing List!
-|-|| To submit a new message, send your mail to JAVA400-L@midrange.com.
-|-|| To subscribe to this list send email to JAVA400-L-SUB@midrange.com.
-|-|| To unsubscribe from this list send email to
-|-|JAVA400-L-UNSUB@midrange.com.
-|-|| Questions should be directed to the list owner: joe@zappie.net
-|-|+---
-|
-|+---
-|| This is the JAVA/400 Mailing List!
-|| To submit a new message, send your mail to JAVA400-L@midrange.com.
-|| To subscribe to this list send email to JAVA400-L-SUB@midrange.com.
-|| To unsubscribe from this list send email to
-|JAVA400-L-UNSUB@midrange.com.
-|| Questions should be directed to the list owner: joe@zappie.net
-|+---
-|+---
-|| This is the JAVA/400 Mailing List!
-|| To submit a new message, send your mail to JAVA400-L@midrange.com.
-|| To subscribe to this list send email to JAVA400-L-SUB@midrange.com.
-|| To unsubscribe from this list send email to
-|JAVA400-L-UNSUB@midrange.com.
-|| Questions should be directed to the list owner: joe@zappie.net
-|+---

+---
| This is the JAVA/400 Mailing List!
| To submit a new message, send your mail to JAVA400-L@midrange.com.
| To subscribe to this list send email to JAVA400-L-SUB@midrange.com.
| To unsubscribe from this list send email to JAVA400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner: joe@zappie.net
+---