Add exception message!

Author: mikir

compiler/core/src/zserio/tools/ExtensionManager.java

@@ -123,13 +123,14 @@ private ClassLoader getClassLoader()
                 System.out.println("Found file: " + file);
                 if (isFileZserioExtension(file))
                 {
-                    urlArray.add(new URI("file:" + file.getPath()).toURL());
+                    urlArray.add(new URI("jar:file:" + file.getPath() + "!/").toURL());
                     urlArray.addAll(getDependentJarsFromManifest(file));
                 }
             }
         }
         catch (MalformedURLException | URISyntaxException excpt)
         {
+            System.out.println("Exception!");
             return currentClassLoader;
         }