Fix Support for Java9

Add ElyBy in default load list

Common/source/customskinloader/utils/JavaUtil.java

@@ -0,0 +1,34 @@
+package customskinloader.utils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.LinkedList;
+
+public class JavaUtil {
+    public static URL[] getClasspath() {
+        if (JavaUtil.class.getClassLoader() instanceof URLClassLoader) {
+            //Java 8-
+            //Use URLClassLoader Directly
+            URLClassLoader ucl = (URLClassLoader) JavaUtil.class.getClassLoader();
+            return ucl.getURLs();
+        } else {
+            //Java 9+
+            //It uses APPClassLoader instead of URLClassLoader
+            //Get Classpath from properties and parse it to URL array
+            String classpath = System.getProperty("java.class.path");
+            String[] elements = classpath.split(File.pathSeparator);
+            if (elements.length == 0)
+                return new URL[0];
+            LinkedList<URL> urls = new LinkedList<URL>();
+            for (String ele : elements) {
+                try {
+                    urls.add(new URL(ele));
+                } catch (Exception ignored) {
+                }
+            }
+            return (URL[]) urls.toArray();
+        }
+    }
+}