public UpdateEventConfigurationsRequest addEventConfigurationsEntry(String key, Configuration value) {
        if (null == this.eventConfigurations) {
            this.eventConfigurations = new java.util.HashMap<String, Configuration>();
        }
        if (this.eventConfigurations.containsKey(key))
            throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
        this.eventConfigurations.put(key, value);
        return this;
    }
Add a single EventConfigurations entry

@see UpdateEventConfigurationsRequest#withEventConfigurations
@returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/UpdateEventConfigurationsRequest.java