Some javassist fixes

vraptor-core/pom.xml

@@ -23,9 +23,9 @@
 			<version>0.9.2</version>
 		</dependency>
 		<dependency>
-			<groupId>javassist</groupId>
+			<groupId>org.javassist</groupId>
 			<artifactId>javassist</artifactId>
-			<version>3.12.1.GA</version>
+			<version>3.18.0-GA</version>
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>

vraptor-core/src/main/java/br/com/caelum/vraptor/proxy/JavassistProxifier.java

@@ -71,14 +71,10 @@ public JavassistProxifier(InstanceCreator instanceCreator) {
     }
 
     @Override
-    @SuppressWarnings("rawtypes")
 	public <T> T proxify(Class<T> type, MethodInvocation<? super T> handler) {
         final ProxyFactory factory = new ProxyFactory();
         factory.setFilter(IGNORE_BRIDGE_AND_OBJECT_METHODS);
-		Class rawType = type;
-        if (isProxyClass(type)) {
-        	rawType = type.getSuperclass();
-        }
+        Class<?> rawType = extractRawType(type);
 
         if (type.isInterface()) {
             factory.setInterfaces(new Class[] { rawType });
@@ -91,21 +87,33 @@ public <T> T proxify(Class<T> type, MethodInvocation<? super T> handler) {
         Object proxyInstance = instanceCreator.instanceFor(proxyClass);
         setHandler(proxyInstance, handler);
 
-        logger.debug("a proxy for {} is created as {}", type, proxyClass);
+        logger.debug("a proxy for {} was created as {}", type, proxyClass);
 
         return type.cast(proxyInstance);
     }
 
+    private <T> Class<?> extractRawType(Class<T> type) {
+        return isProxyType(type) ? type.getSuperclass() : type;
+    }
+
     @Override
 	public boolean isProxy(Object o) {
-        return o != null && isProxyClass(o.getClass());
+        return o != null && isProxyType(o.getClass());
     }
 
     @Override
 	public boolean isProxyType(Class<?> type) {
-		return isProxyClass(type) || org.jboss.weld.bean.proxy.ProxyFactory.isProxy(type);
+        boolean proxy = isProxyClass(type) || isWeldProxy(type);
+        logger.debug("Class {} is proxy: {}", type.getName(), proxy);
+
+		return proxy;
 	}
 
+    // FIXME only works with weld, and can throws ClassNotFoundException in another CDI implementations
+    private boolean isWeldProxy(Class<?> type) {
+        return org.jboss.weld.bean.proxy.ProxyFactory.isProxy(type);
+    }
+
     private <T> void setHandler(Object proxyInstance, final MethodInvocation<? super T> handler) {
         ProxyObject proxyObject = (ProxyObject) proxyInstance;
 

vraptor-core/src/main/java/br/com/caelum/vraptor/proxy/Proxifier.java

@@ -47,5 +47,5 @@ public interface Proxifier {
      * @param o The object to test
      * @return <code>true</code> if the object is a proxy, false otherwise.
      */
-	public abstract boolean isProxyType(Class<?> type);
+	boolean isProxyType(Class<?> type);
 }