Environment
 
Jenkins: 2.585
Plugin: Delinea Secret Server Platform 2.1.0
 
Issue
 
Any save operation on "Manage Jenkins -> System" fails, even without any modifications or when modifying unrelated settings.
 
Error:
java.lang.ClassNotFoundException:
org.apache.commons.lang.StringUtils
 
Caused by:
java.lang.NoClassDefFoundError:
org/apache/commons/lang/StringUtils
 
Stack trace points to (see attached image):
com.delinea.secrets.jenkins.wrapper.cred.ServerConfiguration.setBaseUrl()
 
The relevant code is:
 
import org.apache.commons.lang.StringUtils;
...
line 167 this.baseUrl = StringUtils.removeEnd(baseUrl, "/");
 
Observations:

• Plugin bundles commons-lang3-3.9.jar.
• Plugin does not bundle commons-lang 2.x.
• Plugin manifest declares only:
          Plugin-Dependencies=credentials-binding:687.v619cb_15e923f
   
• The exception occurs while Jenkins binds the Delinea configuration during System page save.
   
  Workaround:
  Manually adding commons-lang-2.x.jar to the plugin runtime allows the save operation to proceed.