Chethan U created FLINK-12503:
---------------------------------
Summary: Improve the exceptions [Proper Error]
Key: FLINK-12503
URL: https://issues.apache.org/jira/browse/FLINK-12503
Project: Flink
Issue Type: Bug
Reporter: Chethan U
Fix For: 1.8.0
Attachments: Screenshot 2019-05-13 at 10.49.50 PM.png
What does this mean also?
```
{panel}
Root exception{panel}
{panel}
*Timestamp:* 2019-05-13, 22:49:31{panel}
{panel}
java.lang.NullPointerException{panel}
```
Yes, it says "java.lang.NullPointerException" but doesn't imply anything...
!Screenshot 2019-05-13 at 10.49.50 PM.png!
Please improve the Exceptions and error outputs...
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