public void setConfigurations(Map<String, KerberosConfigurationDescriptor> configurations) {
    this.configurations = (configurations == null)
        ? null
        : new TreeMap<>(configurations);
  }
Sets the {@link Map} of {@link KerberosConfigurationDescriptor}s for this
{@link AbstractKerberosDescriptorContainer}.

@param configurations a {@link Map} of {@link KerberosConfigurationDescriptor}s
ambari-server/src/main/java/org/apache/ambari/server/state/kerberos/AbstractKerberosDescriptorContainer.java