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Allow ProcessStartInfo and Process.Start arguments to be null #124093

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Allow ProcessStartInfo and Process.Start arguments to be null#124093
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adamsitnik
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api-ready-for-reviewAPI is ready for review, it is NOT ready for implementationarea-System.Diagnostics.Process
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11.0.0
@campersau

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@campersau
campersau
opened on Feb 6, 2026

The arguments in ProcessStartInfo / Process.Start are currently not allowed to be null but it is ok if they are null.
E.g.

runtime/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/ProcessStartInfo.cs

Line 52 in 35b1dd2

public ProcessStartInfo(string fileName, string arguments)

runtime/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.cs

Line 1316 in 35b1dd2

public static Process Start(string fileName, string arguments)

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api-ready-for-reviewAPI is ready for review, it is NOT ready for implementationarea-System.Diagnostics.Process

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