Add ThenThrowCheckedExceptionToRuntimeException recipe#954
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Mockito 3+ validates that checked exceptions passed to `thenThrow()` are declared in the mocked method's `throws` clause. This recipe replaces undeclared checked exception class literals with `RuntimeException.class` and cleans up unused imports.
- Replace manual method name/type checks with MethodMatcher - Use ListUtils.map instead of boolean changed + manual loop - Inline local variables and combine nested conditionals
timtebeek
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Apr 7, 2026
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…ationTest The inline stub classes didn't extend Runner, causing compilation errors on CI. The real PowerMockRunner is already on the classpath via classpathFromResources, so the stubs are unnecessary.
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Summary
ThenThrowCheckedExceptionToRuntimeExceptionthat replaces checked exception class literals inthenThrow()calls withRuntimeException.classwhen the mocked method does not declare the exception in itsthrowsclauseMockito1to3Migration(which chains into 1to4 and 1to5)maybeRemoveImportContext: In Mockito 3+,
thenThrow()validates that checked exceptions are declared in the mocked method'sthrowsclause. Code likewhen(mock.method()).thenThrow(Exception.class)that worked in Mockito 1.x fails at runtime withMockitoException: Checked exception is invalid for this method!after migration.