public void setCredentialStoreSupported(String credentialStoreSupported) {
    this.credentialStoreSupported = credentialStoreSupported;
  }
Set whether credential store is supported. Null indicates unspecified.

@param credentialStoreSupported null, "true", "false"
ambari-server/src/main/java/org/apache/ambari/server/controller/StackServiceRequest.java