fluid-ws-java-client/src/main/java/com/fluidbpm/ws/client/v1/websocket/AGenericListMessageHandler.java
public boolean doReturnValueEchoMessageContainAll(
			List<String> echoMessageParam)
	{
		if(echoMessageParam == null || echoMessageParam.isEmpty())
		{
			return false;
		}

		List<String> allReturnValueEchoMessages =
				this.getEchoMessagesFromReturnValue();

		for(String toCheckFor: echoMessageParam)
		{
			if(!allReturnValueEchoMessages.contains(toCheckFor))
			{
				return false;
			}
		}

		return true;
	}
public boolean doReturnValueEchoMessageContainAll(
			List<String> echoMessageParam)
	{
		if(echoMessageParam == null || echoMessageParam.isEmpty())
		{
			return false;
		}

		List<String> allReturnValueEchoMessages =
				this.getEchoMessagesFromReturnValue();

		for(String toCheckFor: echoMessageParam)
		{
			if(!allReturnValueEchoMessages.contains(toCheckFor))
			{
				return false;
			}
		}

		return true;
	}
Checks the local return value echo messages if all
of them contain {@code echoMessageParam}.

@param echoMessageParam The echo messages to check.

@return Whether local return value echo messages contain {@code echoMessageParam}.