#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.
FunctionName=function_name
        )
        self.assertEqual(rs['BatchSize'], BATCH_SIZE_RANGES['sqs'][0])
        uuid = rs['UUID']
        try:
            
            lambda_client.update_event_source_mapping(
                UUID=uuid,
                FunctionName=function_name,
                BatchSize=BATCH_SIZE_RANGES['sqs'][1] + 1
            )
            self.fail('This call should not be successful as the batch size > MAX_BATCH_SIZE')
        except ClientError as e:
            self.assertEqual(e.response['Error']['Code'], INVALID_PARAMETER_VALUE_EXCEPTION)
        queue_url_2 = sqs_client.create_queue(QueueName=queue_name_2)['QueueUrl']
        queue_arn_2 = aws_stack.sqs_queue_arn(queue_name_2)
        try:
            
            lambda_client.create_event_source_mapping(
                EventSourceArn=queue_arn_2,
                FunctionName=function_name,
                BatchSize=BATCH_SIZE_RANGES['sqs'][1] + 1
            )
            self.fail('This call should not be successful as the batch size > MAX_BATCH_SIZE')
        except ClientError as e:
            self.assertEqual(e.response['Error']['Code'], INVALID_PARAMETER_VALUE_EXCEPTION)
        table_arn = aws_stack.create_dynamodb_table(ddb_table, partition_key='id')['TableDescription']['TableArn']
        rs = lambda_client.create_event_source_mapping(
            EventSourceArn=table_arn,
            FunctionName=function_name