[java] Added a check for intentionally existing loggers

[JHeflinger]

User description

Description

A check for the existence of the handlers property in the LogManager is added in the configureLogging() function as to ensure that intentionally existing loggers such as ones defined in the logging.properties file are not overwritten

Motivation and Context

This is to allow users to use their own loggers and formatting with the grid program.

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.

Fixes #14160

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PR Type

Bug fix

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Description

• Added a check in the configureLogging method to ensure that existing loggers, such as those defined in the logging.properties file, are not overwritten.
• This change allows users to maintain their custom loggers and formatting when using the grid program.

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Changes walkthrough 📝

	Relevant files
Bug fix	LoggingOptions.java Add check to preserve existing loggers in LoggingOptions  java/src/org/openqa/selenium/grid/log/LoggingOptions.java Added a check for existing loggers in configureLogging. Prevents overwriting of loggers defined in logging.properties. +3/-0

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[CLAassistant]

All committers have signed the CLA.

[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Potential Race Condition The check for handlers property and early return could create a race condition if other threads are configuring logging simultaneously. Consider adding synchronization. Incomplete Check Checking only for 'handlers' property may not be sufficient to determine if loggers are properly configured. Consider checking for other essential logging properties.

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Score
Enhancement	Enhance logger existence check by verifying actual handler instances rather than a generic property Check for specific logger handlers instead of the generic 'handlers' property, as individual loggers might have their own handlers configured. java/src/org/openqa/selenium/grid/log/LoggingOptions.java [102] -if (LogManager.getLogManager().getProperty("handlers") != null) return; +if (Arrays.stream(LogManager.getLogManager().getLoggerNames().asIterator().asIterator().toArray()) + .anyMatch(name -> LogManager.getLogManager().getLogger(name.toString()).getHandlers().length > 0)) return; Apply this suggestion Suggestion importance[1-10]: 7 Why: The suggestion proposes a more thorough approach to detect existing logger configurations by checking actual handlers on each logger, which is more reliable than checking a single property. This would prevent edge cases where loggers are configured differently.	7
Maintainability	Improve debugging capabilities by logging when custom configurations are detected Add logging statement to indicate when custom logging configuration is detected and preserved. java/src/org/openqa/selenium/grid/log/LoggingOptions.java [102] -if (LogManager.getLogManager().getProperty("handlers") != null) return; +if (LogManager.getLogManager().getProperty("handlers") != null) { + Logger.getLogger(LoggingOptions.class.getName()).info("Preserving existing logging configuration"); + return; +} Apply this suggestion Suggestion importance[1-10]: 4 Why: Adding a log message would help with debugging and observability, making it clearer when custom logging configurations are preserved. However, this is a minor enhancement with moderate impact on maintainability.	4

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[shbenzer]

@JHeflinger Thank you for the PR! Before it can be evaluated, please sign the Contributor License Agreement.

[shbenzer]

After looking at this PR, could you please add a test to ensure this functionality works as expected.

[diemol]

Thank you, @JHeflinger!

I don't think we need a test for this because the number of people using this is very low. If we get bug reports around this, then I would consider adding a test for this.

[lprimak]

Famous last words hehe.
didn’t take long to find the bug
See #15150