#2093  # Type of request: This is a ...

[*] bug report
[ ] feature request

# Detailed description
Unable to invoke lambda function compiled in java 11. Localstack latest image still shows java version 8.

## Expected behavior
Should be able to invoke lambda function compiled in java 11.

## Actual behavior
Getting error-
Exception in thread "main" java.lang.UnsupportedClassVersionError: publisFunction has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

# Steps to reproduce

docker-compose up -d
Create lambda function
Create SQS 
map lambda and sqs
send message to SQS to invoke lambda

Error message SS:
![image](https://user-images.githubusercontent.com/54183749/96603894-1a561c00-12ba-11eb-9d40-a19370a7c3aa.png)

![LS_error](https://user-images.githubusercontent.com/54183749/96603954-293cce80-12ba-11eb-9566-3942f96e564a.png)


Similar issue was reported #2093.  Couldn't find the answer if that was fixed and latest image of Localstack should compile in JAVA 11.
events = retry(check_expected_lambda_log_events_length, retries=3,
                       sleep=1, function_name=function_name, expected_length=1)
        notification = events[0]['Records'][0]['Sns']
        self.assertIn('Subject', notification)
        self.assertEqual(notification['Subject'], subject)
    def test_lambda_send_message_to_sqs(self):
        function_name = '{}-{}'.format(TEST_LAMBDA_FUNCTION_PREFIX, short_uid())
        queue_name = 'lambda-queue-{}'.format(short_uid())
        sqs_client = aws_stack.connect_to_service('sqs')
        testutil.create_lambda_function(handler_file=TEST_LAMBDA_SEND_MESSAGE_FILE,
                                        func_name=function_name,
                                        runtime=LAMBDA_RUNTIME_PYTHON36)
        queue_url = sqs_client.create_queue(QueueName=queue_name)['QueueUrl']
        event = {
            'message': 'message-from-test-lambda-{}'.format(short_uid()),
            'queue_name': queue_name,
            'region_name': config.DEFAULT_REGION
        }
        self.lambda_client.invoke(
            FunctionName=function_name,
            Payload=json.dumps(event)
        )
        
        def receive_message():
            rs = sqs_client.receive_message(QueueUrl=queue_url, MessageAttributeNames=['All'])
            self.assertGreater(len(rs['Messages']), 0)
            return rs['Messages'][0]
        message = retry(receive_message, retries=3, sleep=2)
        self.assertEqual(message['Body'], event['message'])