Make getMethodHandlesImplLookup Handle Exceptions

[alonalbert]

On Android API < 26,:

debugProcess.findClass(evaluationContext, "java.lang.invoke.MethodHandles\$Lookup", null)

Will throw and this will make Evaluate Expression fail.

https://youtrack.jetbrains.com/issue/IDEA-388179/Evaluate-Expression-Throws-on-Android-API-25

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Note

Low Risk
Change is localized to debugger evaluation utility code and only adds exception handling/fallback behavior; low risk aside from potentially masking unexpected class-loading errors.

Overview
Prevents Evaluate Expression failures on older Android runtimes by making getMethodHandlesImplLookup tolerate findClass throwing (e.g., API < 26) and return null instead.

Callers already treat a null lookup as a helper-invocation failure, so evaluation now cleanly falls back instead of crashing when MethodHandles$Lookup is unavailable.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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runCatching silently swallows cancellation exceptions

Medium Severity

Using runCatching here catches all Throwable instances, including ProcessCanceledException and CancellationException, which are used by the IntelliJ Platform for task cancellation. Swallowing these causes the method to return null instead of propagating the cancellation signal, potentially leaving the IDE in an unresponsive or inconsistent state when the user cancels an evaluation. A try/catch that rethrows cancellation exceptions would be appropriate here.

 

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