#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.
TEST_LAMBDA_NAME_CUSTOM_RUNTIME = 'test_lambda_custom_runtime'
TEST_LAMBDA_NAME_JAVA = 'test_lambda_java'
TEST_LAMBDA_NAME_JAVA_STREAM = 'test_lambda_java_stream'
TEST_LAMBDA_NAME_JAVA_SERIALIZABLE = 'test_lambda_java_serializable'
TEST_LAMBDA_NAME_JAVA_KINESIS = 'test_lambda_java_kinesis'
TEST_LAMBDA_NAME_ENV = 'test_lambda_env'
TEST_LAMBDA_ECHO_FILE = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_echo.py')
TEST_LAMBDA_SEND_MESSAGE_FILE = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_send_message.py')
TEST_LAMBDA_PUT_ITEM_FILE = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_put_item.py')
TEST_LAMBDA_START_EXECUTION_FILE = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_start_execution.py')
TEST_LAMBDA_FUNCTION_PREFIX = 'lambda-function'
TEST_SNS_TOPIC_NAME = 'sns-topic-1'
MAVEN_BASE_URL = 'https://repo.maven.apache.org/maven2'
TEST_LAMBDA_JAR_URL = '{url}/cloud/localstack/{name}/{version}/{name}-{version}-tests.jar'.format(
    version=LOCALSTACK_MAVEN_VERSION, url=MAVEN_BASE_URL, name='localstack-utils')
TEST_LAMBDA_LIBS = [
    'localstack', 'localstack_client', 'requests', 'psutil', 'urllib3', 'chardet', 'certifi', 'idna', 'pip', 'dns'
]
def _run_forward_to_fallback_url(url, num_requests=3):
    lambda_client = aws_stack.connect_to_service('lambda')
    config.LAMBDA_FALLBACK_URL = url
    try:
        for i in range(num_requests):
            lambda_client.invoke(FunctionName='non-existing-lambda-%s' % i,
                                 Payload=b'{}', InvocationType='RequestResponse')
    finally:
        config.LAMBDA_FALLBACK_URL = ''
class LambdaTestBase(unittest.TestCase):
    def test_create_lambda_function(self):
        func_name = 'lambda_func-{}'.format(short_uid())