title: Unable to see Jenkins Credentials values
body: <p>I'm trying to leverage the Jenkins credentials plugin to store sensitive data which I want to inject into Secrets within my Kubernetes cluster. I have a JenkinsFile which is used in my project to define the steps and I've added the following code to pull a username/password from a credential and pass to shell script to replace a placeholder in a file with the actual file:</p>
  
  <pre><code>stages {
      stage('Build') {
          steps {
             withCredentials([usernamePassword(credentialsId: 'creds-test', passwordVariable: 'PASSWORD', usernameVariable: 'USERNAME')]) {
                 sh '''
                    echo $USERNAME
                    echo $PASSWORD
  
                    chmod +x secrets-replace.sh
                    ./secrets-replace.sh USERNAME_PLACEHOLDER $USERNAME
                    ./secrets-replace.sh PASSWORD_PLACEHOLDER $PASSWORD
                  '''
                }
                echo 'Building...'
                sh './gradlew build --refresh-dependencies'
          }
      }
      ...
  }
  </code></pre>
  
  <p>However whenever this runs all I ever get is the masked **** value back, even when I pass it to the shell script. Here is part of the build log:</p>
  
  <p><a href="https://i.stack.imgur.com/rXHwW.png" rel="noreferrer"><img src="https://i.stack.imgur.com/rXHwW.png" alt="Jenkins Log"></a></p>
  
  <p>Is there something I need to configure to get access to the unmasked value?</p>