trying to fix generics

Author: Kajetan Fuchsberger

src/java/org/tensorics/core/tensorbacked/ProxiedInterfaceTensorbackeds.java

@@ -31,7 +31,7 @@ public static <V, T extends Tensorbacked<V>> T create(Class<T> tensorbackedType,
                 new DelegatingInvocationHandler<>(tensor, tensorbackedType));
     }
 
-    public static < T extends Tensorbacked<?>> Optional<Class<T>> tensorbackedInterfaceFrom(T object) {
+    public static <V, T extends Tensorbacked<V>> Optional<Class<T>> tensorbackedInterfaceFrom(T object) {
         if (!(object instanceof Proxy)) {
             return Optional.empty();
         }
@@ -41,7 +41,7 @@ public static < T extends Tensorbacked<?>> Optional<Class<T>> tensorbackedInterf
             return Optional.empty();
         }
 
-        return Optional.of((DelegatingInvocationHandler<?, T>) handler).map(h -> h.intfc);
+        return Optional.of((DelegatingInvocationHandler<V, T>) handler).map(h -> h.intfc);
     }
 
     private final static class DelegatingInvocationHandler<V, T extends Tensorbacked<V>> implements InvocationHandler {

src/java/org/tensorics/core/tensorbacked/TensorbackedInternals.java

@@ -123,7 +123,7 @@ public static final <TB extends Tensorbacked<?>> Iterable<Shape> shapesOf(Iterab
     }
 
     @SuppressWarnings("unchecked")
-    public static final <TB extends Tensorbacked<?>> Class<TB> classOf(TB tensorBacked) {
+    public static final <V, TB extends Tensorbacked<V>> Class<TB> classOf(TB tensorBacked) {
         Optional<Class<TB>> proxiedInterface = ProxiedInterfaceTensorbackeds.tensorbackedInterfaceFrom(tensorBacked);
         if (proxiedInterface.isPresent()) {
             return proxiedInterface.get();