#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.
self.assertDictEqual(
            json.loads(to_str(result_data)),
            {'validated': True, 'bucket': 'test_bucket', 'key': 'test_key'}
        )
    def test_trigger_java_lambda_through_sns(self):
        topic_name = 'topic-%s' % short_uid()
        bucket_name = 'bucket-%s' % short_uid()
        key = 'key-%s' % short_uid()
        function_name = TEST_LAMBDA_NAME_JAVA
        sns_client = aws_stack.connect_to_service('sns')
        topic_arn = sns_client.create_topic(Name=topic_name)['TopicArn']
        s3_client = aws_stack.connect_to_service('s3')
        s3_client.create_bucket(Bucket=bucket_name)
        s3_client.put_bucket_notification_configuration(
            Bucket=bucket_name,
            NotificationConfiguration={
                'TopicConfigurations': [
                    {
                        'TopicArn': topic_arn,
                        'Events': ['s3:ObjectCreated:*']
                    }
                ]
            }
        )
        sns_client.subscribe(
            TopicArn=topic_arn,
            Protocol='lambda',
            Endpoint=aws_stack.lambda_function_arn(function_name)
        )
        events_before = run_safe(get_lambda_log_events, function_name) or []