#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.
kms_key_arn = 'arn:aws:kms:us-east-1:000000000000:key11'
        vpc_config = {
            'SubnetIds': ['subnet-123456789'],
            'SecurityGroupIds': ['sg-123456789']
        }
        tags = {
            'env': 'testing'
        }
        kwargs = {
            'FunctionName': func_name,
            'Runtime': LAMBDA_RUNTIME_PYTHON37,
            'Handler': LAMBDA_DEFAULT_HANDLER,
            'Role': LAMBDA_TEST_ROLE,
            'KMSKeyArn': kms_key_arn,
            'Code': {
                'ZipFile': create_lambda_archive(load_file(TEST_LAMBDA_PYTHON_ECHO), get_content=True)
            },
            'Timeout': 3,
            'VpcConfig': vpc_config,
            'Tags': tags
        }
        client = aws_stack.connect_to_service('lambda')
        client.create_function(**kwargs)
        rs = client.get_function(
            FunctionName=func_name
        )
        self.assertEqual(rs['Configuration'].get('KMSKeyArn', ''), kms_key_arn)
        self.assertEqual(rs['Configuration'].get('VpcConfig', {}), vpc_config)
        self.assertEqual(rs['Tags'], tags)
        client.delete_function(FunctionName=func_name)