#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.
def test_ddb_event(self):
        result = self.lambda_client.invoke(
            FunctionName=TEST_LAMBDA_NAME_JAVA, InvocationType='Event',
            Payload=b'{"Records": [{"dynamodb": {"Message": "{}"}}]}')
        self.assertEqual(result['StatusCode'], 202)
    def test_kinesis_invocation(self):
        payload = b'{"Records": [{"kinesis": {"data": "dGVzdA==", "partitionKey": "partition"}}]}'
        result = self.lambda_client.invoke(FunctionName=TEST_LAMBDA_NAME_JAVA_KINESIS, Payload=payload)
        result_data = result['Payload'].read()
        self.assertEqual(result['StatusCode'], 200)
        self.assertEqual(to_str(result_data).strip(), '"test "')
    def test_kinesis_event(self):
        result = self.lambda_client.invoke(
            FunctionName=TEST_LAMBDA_NAME_JAVA, InvocationType='Event',
            Payload=b'{"Records": [{"Kinesis": {"Data": "data", "PartitionKey": "partition"}}]}')
        result_data = result['Payload'].read()
        self.assertEqual(result['StatusCode'], 202)
        self.assertEqual(to_str(result_data).strip(), '')
    def test_stream_handler(self):
        result = self.lambda_client.invoke(
            FunctionName=TEST_LAMBDA_NAME_JAVA_STREAM, Payload=b'{}')
        result_data = result['Payload'].read()
        self.assertEqual(result['StatusCode'], 200)
        self.assertEqual(to_str(result_data).strip(), '{}')
    def test_serializable_input_object(self):
        result = self.lambda_client.invoke(
            FunctionName=TEST_LAMBDA_NAME_JAVA_SERIALIZABLE,
            Payload=b'{"bucket": "test_bucket", "key": "test_key"}')
        result_data = result['Payload'].read()
        self.assertEqual(result['StatusCode'], 200)