[weld-issues] [JBoss JIRA] (WELD-1132) TypeVariableResolverTest.testVariableArray() test is failing on JDK 7

[Marko Lukša (JIRA)]

Marko Lukša created WELD-1132:
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             Summary: TypeVariableResolverTest.testVariableArray() test is failing on JDK 7
                 Key: WELD-1132
                 URL: https://issues.jboss.org/browse/WELD-1132
             Project: Weld
          Issue Type: Bug
    Affects Versions: 1.1.8.Final
            Reporter: Marko Lukša
            Assignee: Marko Lukša


The problem is with how java reflection handles arrays. Different JDKs and supposedly even different methods in the same JDK use two different representations of an array:

>From http://weblogs.java.net/blog/kohsuke/archive/2008/12/introspecting_g.html:
{quote}
Note that there's a little overlap between Class and GenericArrayType. a type like String[] can be represented either as String[].class or GenericArrayType(String.class). Different JDK methods return different forms (I filed a bug on this but forgot which one), so your code should anticipate both patterns.
{quote}

In JDK6 {{new TypeLiteral<Integer[]>() {}.getType()}} returns {{GenericArrayType(Integer.class)}}, while in JDK7 it returns {{Integer[].class}}. 

Since {{Integer[]}} is not a generic array, we can skip using {{TypeLiteral}} and simply use {{Integer[].class}} as the expected value. However, {{TypeVariableResolver}} should also be modified so it never returns {{GenericArrayType}}, when the array isn't generic.


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