Unable to un-deploy shared library from Integrated Weblogic server.

Problem:

Un-deployment of ADF shared library fails with below exception from WebLogic server.
WLS Version:  12.2.1.3

Error: weblogic.management.ManagementException: [Deployer:149001] [Version=1.1]” <YOUR LIBRARY NAME>  exists for operation “undeploy”


Solution:

1. Stop all the servers, Admin & Managed servers
2. Go to the <MW_HOME>\user_projects\domains\<DOMAIN_NAME>\config
    For eg, my location would be C:\xxxxxxxxxx\system\system12.2.1.3.42.170820.0914\DefaultDomain\config
3. Open the file config.xml (Back up the file)
4. Find your library by name , For example: dmskins
5. Delete the library element in the file.  From <library> to </library>
6. Delete the jar file as mentioned in the <Source-Path>
    For eg, my location would be C:\xxxxxxxxx\system\system12.2.1.3.42.170820.0914\DefaultDomain\servers\DefaultServer\upload\dmSkins\1.1@\app\
7. Restart the Admin and other servers

config.xml

  <library>  
   <name>dmskins#1.1@</name>  
   <target>DefaultServer</target>  
   <module-type>war</module-type>  
   <source-path>servers\DefaultServer\upload\dmSkins\1.1@\app\warDmSkins.war</source-path>  
   <security-dd-model>DDOnly</security-dd-model>  
   <staging-mode xsi:nil="true"></staging-mode>  
   <plan-staging-mode xsi:nil="true"></plan-staging-mode>  
   <cache-in-app-directory>false</cache-in-app-directory>  
  </library>