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https://issues.apache.org/jira/browse/NIFI-9734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17499481#comment-17499481
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ASF subversion and git services commented on NIFI-9734:
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Commit 9bb34188c98b9ffef24310f0c62a669b9241b3f9 in nifi's branch
refs/heads/main from David Handermann
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=9bb3418 ]
NIFI-9734 Standardized exception cause message formatting
Signed-off-by: Joe Gresock <[email protected]>
This closes #5813.
> Standardize Bulletin Exception Messages
> ---------------------------------------
>
> Key: NIFI-9734
> URL: https://issues.apache.org/jira/browse/NIFI-9734
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.14.0
> Reporter: David Handermann
> Assignee: David Handermann
> Priority: Minor
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> NiFi 1.14.0 included improvements to bulletin log messages that incorporated
> the Java Exception class and message for each cause in the stack trace.
> The current implementation lists the root cause first and the direct cause
> last, with each cause associated as follows:
> {noformat}
> java.net.ConnectionException: Connection refued
> - causes: com.exceptionfactory.socketbroker.BrokeredConnectException: Proxy
> Address connection failed
> - causes: org.apache.nifi.processors.standard.socket.ClientConnectException:
> SSH Client connection failed
> {noformat}
> Although this approach is technically correct, it does not follow the
> standard Java logging convention where the direct cause is listed first and
> the root cause is listed last. The order should be reversed so that the log
> output reads as follows:
> {noformat}
> org.apache.nifi.processors.standard.socket.ClientConnectException: SSH Client
> connection failed
> - Caused by: com.exceptionfactory.socketbroker.BrokeredConnectException:
> Proxy Address connection failed
> - Caused by: java.net.ConnectionException: Connection refued
> {noformat}
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