Re: Re: Re: A complete list of JDK classes which CheckClassAdapter fails (bug?)

> Eric,
> Why don't modify CheckClassAdapter to handle join interfaces as suggested
> in the paper you reference ?

I could try this, but a simpler solution is to relax the ASM verifier, ie to consider that any class can be assigned to any interface (like the Sun verifier does):

Index: SimpleVerifier.java
===================================================================
--- SimpleVerifier.java	(revision 1434)
+++ SimpleVerifier.java	(working copy)
@@ -267,6 +267,9 @@
             if (getSuperClass(u) == null) {
                 return false;
             } else {
+                if (isInterface) {
+                    return u.getSort() == Type.OBJECT || u.getSort() == Type.ARRAY;
+                }
                 return isAssignableFrom(t, getSuperClass(u));
             }
         }
@@ -284,7 +287,11 @@
             }
             return false;
         }
-        return getClass(t).isAssignableFrom(getClass(u));
+        Class tc = getClass(t);
+        if (tc.isInterface()) {
+            tc = Object.class;
+        }
+        return tc.isAssignableFrom(getClass(u));
     }

I checked that, with this patch, all JDK classes are considered valid with the ASM verifier.

Eric

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