8344315: Clean up sun.net.www.protocol.jrt.JavaRuntimeURLConnection after JEP 486 integration

Reviewed-by: dfuchs, alanb

Author: jaikiran

src/java.base/share/classes/sun/net/www/protocol/jrt/JavaRuntimeURLConnection.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -30,15 +30,11 @@
 import java.io.InputStream;
 import java.net.MalformedURLException;
 import java.net.URL;
-import java.security.AccessController;
-import java.security.Permission;
-import java.security.PrivilegedAction;
 
 import jdk.internal.jimage.ImageLocation;
 import jdk.internal.jimage.ImageReader;
 import jdk.internal.jimage.ImageReaderFactory;
 
-import jdk.internal.loader.URLClassPath;
 import jdk.internal.loader.Resource;
 import sun.net.www.ParseUtil;
 import sun.net.www.URLConnection;
@@ -47,15 +43,10 @@
  * URLConnection implementation that can be used to connect to resources
  * contained in the runtime image.
  */
-@SuppressWarnings("removal")
 public class JavaRuntimeURLConnection extends URLConnection {
 
     // ImageReader to access resources in jimage
-    private static final ImageReader reader;
-    static {
-        PrivilegedAction<ImageReader> pa = ImageReaderFactory::getImageReader;
-        reader = AccessController.doPrivileged(pa);
-    }
+    private static final ImageReader reader = ImageReaderFactory.getImageReader();
 
     // the module and resource name in the URL
     private final String module;
@@ -92,7 +83,7 @@ private static Resource findResource(String module, String name) {
         if (reader != null) {
             URL url = toJrtURL(module, name);
             ImageLocation location = reader.findLocation(module, name);
-            if (location != null && URLClassPath.checkURL(url) != null) {
+            if (location != null) {
                 return new Resource() {
                     @Override
                     public String getName() {
@@ -158,11 +149,6 @@ public int getContentLength() {
         return len > Integer.MAX_VALUE ? -1 : (int)len;
     }
 
-    @Override
-    public Permission getPermission() {
-        return new RuntimePermission("accessSystemModules");
-    }
-
     /**
      * Returns a jrt URL for the given module and resource name.
      */