JDK 9 RFR of JDK-8074977: Constructor.getAnnotatedParameterTypes returns wrong value
joe.darcy at oracle.com
Fri May 19 21:31:58 UTC 2017
Please review the webrev to fix
JDK-8074977: Constructor.getAnnotatedParameterTypes returns wrong value
To condense a complicated situation, there are cases where the number of
parameters present for a constructor in source code and the number of
parameters present for that constructor in the class file differ. One of
those cases occurs for the constructor of a non-static member class 
where there is a leading parameter to accept the outer this argument.
Bug JDK-8074977 reports on a situation where the type annotations on
constructor parameters are incorrectly reported. Essentially, an
off-by-one error is the cause since the annotation information is stored
with respect to the number of parameters present in the source and an
additional parameter is present at runtime.
An analogous situation exists for declaration annotations and
constructor parameters, declaration annotations being the traditional
flavor of annotations.
Type annotations and declaration annotations are read using different
APIs so require separate fixes to detect the additional parameter and
make the necessary adjustments in the returned information.
The regression tests cover both the type annotation reading API and the
two ways of reading declaration annotations on parameters, calling
getParameterAnnotations on the constructor or call getParameters on the
constructor and then calling getAnnotations on each parameter. The
getParameters API was added in JDK 8.
Static member and non-static member classes are used as test cases, as
are constructors with and without generic type information.
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