[
https://issues.apache.org/jira/browse/KNOX-3011?focusedWorklogId=907147=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-907147
]
ASF GitHub Bot logged work on KNOX-3011:
Author: ASF GitHub Bot
Created on: 27/Feb/24 11:18
Start Date: 27/Feb/24 11:18
Worklog Time Spent: 10m
Work Description: smolnar82 opened a new pull request, #861:
URL: https://github.com/apache/knox/pull/861
## What changes were proposed in this pull request?
Before my change, any time I ran a KnoxCLI command I saw the following
warning messages wrt. there are multiple SLF4J bindings on the classpath:
```
$ bin/knoxcli.sh create-master --master gateway
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/Users/sandormolnar/test/knoxGateway/bin/../dep/log4j-slf4j-impl-2.17.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/Users/sandormolnar/test/knoxGateway/bin/../dep/logback-classic-1.2.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type
[org.apache.logging.slf4j.Log4jLoggerFactory]
Master secret has been persisted to disk.
```
I also confirmed that we have had
`ch.qos.logback:logback-[core-classic]:jar:1.2.10` on Maven's dependency tree
multiple times.
```
$ mvn dependency:tree | grep '^.*logback.*1.2.10.*$' | wc -l
66
```
## How was this patch tested?
1. Running the previous `mvn:dependencyTree` command:
```
$ mvn dependency:tree | grep '^.*logback.*1.2.10.*$' | wc -l
0
```
2. Rebuilt and redeployed Knox, then ran the `create-master` command:
```
$ bin/knoxcli.sh create-master --master gateway
Master secret has been persisted to disk.
```
Issue Time Tracking
---
Worklog Id: (was: 907147)
Remaining Estimate: 0h
Time Spent: 10m
> Resolve duplicated SL4J on classpath issue
> --
>
> Key: KNOX-3011
> URL: https://issues.apache.org/jira/browse/KNOX-3011
> Project: Apache Knox
> Issue Type: Improvement
>Affects Versions: 2.1.0
>Reporter: Sandor Molnar
>Assignee: Sandor Molnar
>Priority: Major
> Fix For: 2.1.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Any time I run a KnoxCLI command, it always starts with the following warning
> messages displayed on my terminal:
> {noformat}
> SLF4J: Class path contains multiple SLF4J bindings.
> SLF4J: Found binding in
> [jar:file:/Users/sandormolnar/test/knoxGateway/bin/../dep/log4j-slf4j-impl-2.17.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: Found binding in
> [jar:file:/Users/sandormolnar/test/knoxGateway/bin/../dep/logback-classic-1.2.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
> explanation.
> SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
> {noformat}
> The reason behind this warning is that Zookeeper pulls in outdated
> {{logback}} dependencies which we should exclude.
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