GitHub user MaridProject opened a pull request:
https://github.com/apache/commons-lang/pull/307
Fix TypeUtils.parameterize to work correctly with narrower-typed array
Currently the following code:
```
final TypeVariable<?>[] variables = ArrayList.class.getTypeParameters();
final ParameterizedType parameterizedType =
TypeUtils.parameterize(ArrayList.class, variables);
final Map<TypeVariable<?>, Type> mapping = Collections.<TypeVariable<?>,
Type>singletonMap(variables[0], String.class);
final Type unrolled = TypeUtils.unrollVariables(mapping,
parameterizedType); // exception !
assertEquals(TypeUtils.parameterize(ArrayList.class, String.class),
unrolled);
```
throws an exception.
So, I added a test and fixed the ParameterizedTypeImpl class.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/MaridProject/commons-lang master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/commons-lang/pull/307.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #307
----
commit 564f302d142251bd1f60ce4178a2cd994b39dcf1
Author: Dmitry Ovchinnikov <d.ovchinni...@gmail.com>
Date: 2017-11-12T18:49:07Z
Fix TypeUtils.parameterize to work correctly with narrower-typed varargs
array
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---
