bwagent failed to start with SLF4J: Class path contains multiple SLF4J bindings
Article ID: KB0081970
Updated On:
| Products | Versions |
|---|---|
| TIBCO ActiveMatrix BusinessWorks | 6.x |
Description
Symptoms:
When try to start the bwagent it failed with below error message
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C:\TIBCO\bw\6.3\bin>bwagent startagent -config C:\TIBCO\bw\6.3\config\bwagent.ini
TIBCO ActiveMatrix BusinessWorks version 6.3.5, build V17, 2017-02-02
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/TIBCO/bw/6.3/system/shared/com.tibco.tpcl.logback_1.1.0.001/logback-classic-1.0.13.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/TIBCO/ems/8.3/lib/slf4j-simple-1.5.2.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 [ch.qos.logback.classic.util.ContextSelectorStaticBinder]
C:\TIBCO\bw\6.3\bin>
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Cause:
When you have multiple versions of slf4j jars available in class-path of bwagent, it will create a conflict of version and class and that leads to problem mentioned above.
Installing multiple versions of product in same TIBCO_HOME and updating the .tra file lib path incorrect way leads you to such situation.
Environment
Resolution
In above case should remove the 'slf4j-simple-1.5.2.jar' from specified location.
Make sure that you should have only one instance or version of slf4j.jar loaded into class-path. Check the bwagent .tra file to check whether other version slf4j.jar instances are getting loaded. If there is any entry of path pointing to other product slf4j.jar then remove it.
Issue/Introduction
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