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

        this.contextKeyNames = new com.amazonaws.internal.SdkInternalList<String>(contextKeyNames);
    }
<p>
The list of context keys that are referenced in the input policies.
</p>

@param contextKeyNames
       The list of context keys that are referenced in the input policies.
aws-java-sdk-iam/src/main/java/com/amazonaws/services/identitymanagement/model/GetContextKeysForCustomPolicyResult.java