#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 = get_lambda_log_events(function_name)
        
        self.assertEqual(len(events[0]['Records']), 1)
        
        lambda_client.update_event_source_mapping(
            UUID=uuid,
            Enabled=False
        )
        table.put_item(Item=items[1])
        events = get_lambda_log_events(function_name)
        
        self.assertEqual(len(events[0]['Records']), 1)
        
        dynamodb_client = aws_stack.connect_to_service('dynamodb')
        dynamodb_client.delete_table(TableName=ddb_table)
        lambda_client.delete_function(FunctionName=function_name)
    def test_deletion_event_source_mapping_with_dynamodb(self):
        function_name = 'lambda_func-{}'.format(short_uid())
        ddb_table = 'ddb_table-{}'.format(short_uid())
        testutil.create_lambda_function(
            handler_file=TEST_LAMBDA_ECHO_FILE,
            func_name=function_name,
            runtime=LAMBDA_RUNTIME_PYTHON36
        )
        table_arn = aws_stack.create_dynamodb_table(ddb_table, partition_key='id')['TableDescription']['TableArn']
        lambda_client = aws_stack.connect_to_service('lambda')
        lambda_client.create_event_source_mapping(
            FunctionName=function_name,
            EventSourceArn=table_arn
        )