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Guard against potential NPE if startup fails before container creation (

testcontainers#876)

remove Netty classes from OkHttpInvocationBuilder (testcontainers#869)

* remove Netty classes from OkHttpInvocationBuilder

* use `BufferedReader`

* simplify JsonSink

* code cleanup

Add support for docker hub private registry credentials (testcontaine…

…rs#845)

* Fix authentication for use of base64-encoded credentials and credential helpers with private registries and docker hub

* Update following review by @bsideup

* Update to docker-java 3.1.0-rc-4

* fix shading

Update changelog

Revert changelog mention of testcontainers#802

Update changelog for 1.8.1 release

Update changelog for 1.8.0 release

Update CHANGELOG.md

Update changelog for 1.7.2 release