public java.util.List<String> getValues() {
        if (values == null) {
            values = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return values;
    }
<p>
User-defined criteria that maps to <code>Key</code>. For example, if you specified <code>tag:ServerRole</code>,
you could specify <code>value:WebServer</code> to run a command on instances that include EC2 tags of
<code>ServerRole,WebServer</code>.
</p>
<p>
Depending on the type of target, the maximum number of values for a key might be lower than the global maximum of
50.
</p>

@return User-defined criteria that maps to <code>Key</code>. For example, if you specified
        <code>tag:ServerRole</code>, you could specify <code>value:WebServer</code> to run a command on instances
        that include EC2 tags of <code>ServerRole,WebServer</code>. </p>
        <p>
        Depending on the type of target, the maximum number of values for a key might be lower than the global
        maximum of 50.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/Target.java