<!-- Love localstack? Please consider supporting our collective:
:point_right:  https://opencollective.com/localstack/donate -->

# Type of request: This is a ...
[x] bug report
[ ] feature request

# Detailed description
Currently when using [software.amazon.awssdk:kinesis:2.15.27](https://search.maven.org/artifact/software.amazon.awssdk/kinesis/2.15.27/jar) and attempting to use [getRecords](https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/kinesis/KinesisAsyncClient.html#getRecords-java.util.function.Consumer-) we end up getting a general aws client exception `software.amazon.awssdk.core.exception.SdkClientException: Unable to parse date : 1.605283809962E9`. This doesn't happen when using a live kinesis stream.

## Expected behavior
Should be able to get a response from localstack with the correct data.

## Actual behavior
An exception is thrown from inside aws sdk v2 with the message `software.amazon.awssdk.core.exception.SdkClientException: Unable to parse date : 1.605283809962E9`.

# Steps to reproduce
## Command used to start LocalStack
`docker run -d -p 4566:4566 -e "SERVICES=kinesis" localstack/localstack:0.12.2`

## Client code (AWS SDK code snippet, or sequence of "awslocal" commands)
https://github.com/lukecollier/localstack-jvm-aws-sdk-v2



┆Issue is synchronized with this [Jira Task](https://localstack.atlassian.net/browse/LOC-53) by [Unito](https://www.unito.io/learn-more)

HEADER_LOCALSTACK_EDGE_URL = 'x-localstack-edge'
HEADER_LOCALSTACK_TARGET = 'x-localstack-target'
DEFAULT_PORT_EDGE = 4566
DEFAULT_PORT_WEB_UI = 8080
LOCALHOST = 'localhost'
LOCALHOST_IP = '127.0.0.1'
LOCALSTACK_MAVEN_VERSION = '0.2.5'
DEFAULT_SERVICE_PORTS = localstack_client.config.get_service_ports()
BIND_HOST = '0.0.0.0'
if 'TEST_AWS_ACCOUNT_ID' not in os.environ:
    os.environ['TEST_AWS_ACCOUNT_ID'] = '000000000000'
TEST_AWS_ACCOUNT_ID = os.environ['TEST_AWS_ACCOUNT_ID']
LOCALSTACK_ROOT_FOLDER = os.path.realpath(os.path.join(os.path.dirname(os.path.realpath(__file__)), '..'))
LOCALSTACK_VENV_FOLDER = os.path.join(LOCALSTACK_ROOT_FOLDER, '.venv')
if not os.path.isdir(LOCALSTACK_VENV_FOLDER):
    
    LOCALSTACK_VENV_FOLDER = os.path.realpath(os.path.join(LOCALSTACK_ROOT_FOLDER, '..', '..', '..'))
PATH_USER_REQUEST = '_user_request_'
DOCKER_IMAGE_NAME = 'localstack/localstack'
DOCKER_IMAGE_NAME_FULL = 'localstack/localstack-full'
CONFIG_UPDATE_PATH = '/?_config_'
ENV_INTERNAL_TEST_RUN = 'LOCALSTACK_INTERNAL_TEST_RUN'
APPLICATION_AMZ_JSON_1_0 = 'application/x-amz-json-1.0'
APPLICATION_AMZ_JSON_1_1 = 'application/x-amz-json-1.1'
APPLICATION_AMZ_CBOR_1_1 = 'application/x-amz-cbor-1.1'
APPLICATION_JSON = 'application/json'
APPLICATION_XML = 'application/xml'
APPLICATION_X_WWW_FORM_URLENCODED = 'application/x-www-form-urlencoded'
TRUE_STRINGS = ('1', 'true', 'True')
FALSE_STRINGS = ('0', 'false', 'False')