Add e2e concurrent/stress test for AcquireTokenSilent via broker, Fixes AB#3582859#2504

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copilot/add-e2e-concurrent-stress-test

Commits on Apr 30, 2026

Add ConcurrentAcquireTokenExecutor and E2E concurrent stress test

Copilot
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rpdome
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Fix review feedback: iteration number in error message, tighter timeout

Copilot
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rpdome
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Increase thread count to 13 and add 1000 iterations per thread to match UI defaults

Copilot
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rpdome
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Extract ConcurrentAcquireTokenSilentHelper to share concurrency implementation

Copilot
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rpdome
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Fix spelling: synchronised -> synchronized in comments

Copilot
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rpdome
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Cut total timeout from 14400s to 5000s

Copilot
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rpdome
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Set ITERATIONS_PER_THREAD=100 and TOTAL_TIMEOUT_SECONDS=500

Copilot
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rpdome
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Change timeout from per-request to per-wave (10s max per wave)

Copilot
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rpdome
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Remove arbitrary 200s buffer from TOTAL_TIMEOUT_SECONDS; derive it from iterations × per-wave timeout

Copilot
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rpdome
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Remove TOTAL_TIMEOUT_SECONDS from public API; derive backstop internally in helper

Copilot
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rpdome
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Update testapps/testapp/src/main/java/com/microsoft/identity/client/testapp/ConcurrentAcquireTokenExecutor.java

rpdome
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Copilot
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Delete duplicate ConcurrentAcquireTokenExecutor.java; align helper SCOPE_POOL with Kotlin counterpart

Copilot
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rpdome
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Apply code-review feedback: input validation, interrupt handling, dispatch try/catch, richer error messages

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rpdome
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add annotation
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