[weld-issues] [JBoss JIRA] (WELD-1141) Bean proxy class has non-varargs method for original varargs method

[Adam Michalik (JIRA)]

     [ https://issues.jboss.org/browse/WELD-1141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adam Michalik updated WELD-1141:
--------------------------------

    Component/s: Proxies
                 Reflection layer

    
> Bean proxy class has non-varargs method for original varargs method
> -------------------------------------------------------------------
>
>                 Key: WELD-1141
>                 URL: https://issues.jboss.org/browse/WELD-1141
>             Project: Weld
>          Issue Type: Bug
>          Components: Proxies, Reflection layer
>    Affects Versions: 1.1.8.Final
>            Reporter: Adam Michalik
>
> Test case:
> @RequestScoped
> public class TestVarargs {
>     public void varargsMethod(String... strings) {}
> }
> public class TestClass {
>     @Inject
>     TestVarargs testVarargs;
>     public void runTest() {
>         testClass(testVarargs.getClass());
>         testClass(TestVarargs.class);
>     }
>     private void testClass(Class<?> clazz) {
>         for (Method m : clazz.getMethods()) {
>             if (m.getName().equals("varargsMethod")) {
>                 System.out.println(clazz + " : " + m + " : " + m.isVarArgs());
>             }
>         }
>     }
> }
> Prints:
> class TestVarargs$Proxy$_$$_WeldClientProxy : public void TestVarargs$Proxy$_$$_WeldClientProxy.varargsMethod(java.lang.String[]) : false
> class TestVarargs : public void TestVarargs.varargsMethod(java.lang.String[]) : true
> The method generated in Weld proxy class is not a varargs method while the original one was. This breaks proper method lookup in tools that use reflection - in my case it was ZK EL resolver: for ${bean.method('String arg')} where signature is method(String...) there was proper code to handle a varargs call but only if the method was indeed declared as Method.isVarargs(), which was not the case when ${bean} was a Weld proxy.

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