public void setRemovePrincipals(java.util.Collection<String> removePrincipals) {
        if (removePrincipals == null) {
            this.removePrincipals = null;
            return;
        }

        this.removePrincipals = new java.util.ArrayList<String>(removePrincipals);
    }
<p>
The principals to remove from the cross-account attachment. A principal is an account or the Amazon Resource Name
(ARN) of an accelerator that the attachment gives permission to work with resources from another account. The
resources are also listed in the attachment.
</p>
<p>
To remove more than one principal, separate the account numbers or accelerator ARNs, or both, with commas.
</p>

@param removePrincipals
       The principals to remove from the cross-account attachment. A principal is an account or the Amazon
       Resource Name (ARN) of an accelerator that the attachment gives permission to work with resources from
       another account. The resources are also listed in the attachment.</p>
       <p>
       To remove more than one principal, separate the account numbers or accelerator ARNs, or both, with commas.
aws-java-sdk-globalaccelerator/src/main/java/com/amazonaws/services/globalaccelerator/model/UpdateCrossAccountAttachmentRequest.java