#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.
import re
import os
import json
import shutil
import time
import unittest
import six
import base64
from botocore.exceptions import ClientError
from io import BytesIO
from localstack import config
from localstack.constants import LOCALSTACK_MAVEN_VERSION, LOCALSTACK_ROOT_FOLDER, LAMBDA_TEST_ROLE
from localstack.services.awslambda.lambda_executors import LAMBDA_RUNTIME_PYTHON37, LAMBDA_RUNTIME_NODEJS12X
from localstack.utils import testutil
from localstack.utils.testutil import (
    get_lambda_log_events, check_expected_lambda_log_events_length, create_lambda_archive
)
from localstack.utils.kinesis import kinesis_connector
from localstack.utils.aws import aws_stack
from localstack.utils.common import (
    unzip, new_tmp_dir, short_uid, load_file, to_str, mkdir, download, save_file,
    run_safe, get_free_tcp_port, get_service_protocol, retry, to_bytes, cp_r
)