public void setProposedConfiguration(java.util.Collection<GroupConfigurationItem> proposedConfiguration) {
        if (proposedConfiguration == null) {
            this.proposedConfiguration = null;
            return;
        }

        this.proposedConfiguration = new java.util.ArrayList<GroupConfigurationItem>(proposedConfiguration);
    }
<p>
If present, the new configuration that is in the process of being applied to the group.
</p>

@param proposedConfiguration
       If present, the new configuration that is in the process of being applied to the group.
aws-java-sdk-resourcegroups/src/main/java/com/amazonaws/services/resourcegroups/model/GroupConfiguration.java