Hans Weisheimer created CXF-5534:
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Summary: ProviderFactory returns incorrect ExceptionMapper when no
exact match is registered
Key: CXF-5534
URL: https://issues.apache.org/jira/browse/CXF-5534
Project: CXF
Issue Type: Bug
Components: JAX-RS
Affects Versions: 2.7.8
Reporter: Hans Weisheimer
Priority: Minor
The JAX-RS 1.1 spec says:
When choosing an exception mapping provider to map an exception, an
implementation MUST use the provider whose generic type is the nearest
superclass of the exception.
In 2.7.0, this was working per the spec. In 2.7.8 (likely starting with 2.7.6,
but not tested), the FIRST ExceptionMapper provider is returned when there is
no exact match. This usually results in a ClassCastException.
In the attached test, a NullPointerException should map to the registered
ExceptionMapper<RuntimeException> provider, but it does not.
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