[java] fix null request in case of chunked request

[nikhlagrwl]

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Description

Selenium throws a NullPointerException in case of chunked request. The request object is initialised after sending 100 response for chunked requests and hence for the last chunk of the request, the request object is null.

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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All committers have signed the CLA.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b27523b) 57.52% compared to head (b9b67b9) 57.52%.
Report is 1 commits behind head on trunk.

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Additional details and impacted files

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  Coverage   57.52%   57.52%           
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  Lines        5299     5299           
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  Hits         3048     3048           
  Misses       2030     2030           
  Partials      221      221           

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[joerg1985]

@nikhlagrwl thanks for opening the PR, what client are you using to have chunked requests?
Some drivers do not support chunked requests, therefore you might run into simil ar issues with your client when directly connecting to a driver. So there might also be a client issue to fix, beside the server issue.

[nikhlagrwl]

@nikhlagrwl thanks for opening the PR, what client are you using to have chunked requests? Some drivers do not support chunked requests, therefore you might run into simil ar issues with your client when directly connecting to a driver. So there might also be a client issue to fix, beside the server issue.

@joerg1985 I tried with a ruby client and even with curl command, it's failing on both the case.
Getting the below error on server in both the scenario
07:12:57.574 WARN [DefaultChannelPipeline.onUnhandledInboundException] - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.lang.NullPointerException: Cannot invoke "org.openqa.selenium.remote.http.HttpRequest.setContent(java.util.function.Supplier)" because "this.request" is null

[joerg1985]

@nikhlagrwl could you share the curl call?

[nikhlagrwl]

@nikhlagrwl could you share the curl call?

echo '{"desiredCapabilities":{"browserName": "firefox"},"requiredCapabilities":{}}' | curl -N -X POST --connect-timeout 20 --data-binary @- -H "Transfer-Encoding: chunked" -H 'Content-Type: application/json; charset=utf-8' -H 'Expect: 100-continue' http://localhost:4444/wd/hub/session -vvv

[diemol]

@nikhlagrwl could you share the curl call?

echo '{"desiredCapabilities":{"browserName": "firefox"},"requiredCapabilities":{}}' | curl -N -X POST --connect-timeout 20 --data-binary @- -H "Transfer-Encoding: chunked" -H 'Content-Type: application/json; charset=utf-8' -H 'Expect: 100-continue' http://localhost:4444/wd/hub/session -vvv

Please note, that payload is not valid anymore as it is JWP, not W3C WebDriver.

[titusfortner]

please run ./scripts/format.sh to fix the linting issues

[nikhlagrwl]

@titusfortner Resolved linting issues