8344065: Remove SecurityManager uses from the java.datatransfer module

Reviewed-by: serb

Author: prrace

src/java.base/share/classes/module-info.java

@@ -313,7 +313,6 @@
         java.desktop;
     exports sun.reflect.misc to
         java.desktop,
-        java.datatransfer,
         java.management,
         java.management.rmi,
         java.rmi,

src/java.datatransfer/share/classes/java/awt/datatransfer/DataFlavor.java

@@ -45,7 +45,6 @@
 import java.util.Objects;
 
 import sun.datatransfer.DataFlavorUtil;
-import sun.reflect.misc.ReflectUtil;
 
 /**
  * A {@code DataFlavor} provides meta information about data. {@code DataFlavor}
@@ -131,32 +130,22 @@ protected static final Class<?> tryToLoadClass(String className,
                                                    ClassLoader fallback)
         throws ClassNotFoundException
     {
-        ReflectUtil.checkPackageAccess(className);
+        ClassLoader loader = ClassLoader.getSystemClassLoader();
         try {
-            @SuppressWarnings("removal")
-            SecurityManager sm = System.getSecurityManager();
-            if (sm != null) {
-                sm.checkPermission(new RuntimePermission("getClassLoader"));
-            }
-            ClassLoader loader = ClassLoader.getSystemClassLoader();
-            try {
-                // bootstrap class loader and system class loader if present
-                return Class.forName(className, true, loader);
-            }
-            catch (ClassNotFoundException exception) {
-                // thread context class loader if and only if present
-                loader = Thread.currentThread().getContextClassLoader();
-                if (loader != null) {
-                    try {
-                        return Class.forName(className, true, loader);
-                    }
-                    catch (ClassNotFoundException e) {
-                        // fallback to user's class loader
-                    }
+            // bootstrap class loader and system class loader if present
+            return Class.forName(className, true, loader);
+        }
+        catch (ClassNotFoundException exception) {
+            // thread context class loader if and only if present
+            loader = Thread.currentThread().getContextClassLoader();
+            if (loader != null) {
+                try {
+                    return Class.forName(className, true, loader);
+                }
+                catch (ClassNotFoundException e) {
+                    // fallback to user's class loader
                 }
             }
-        } catch (SecurityException exception) {
-            // ignore secured class loaders
         }
         return Class.forName(className, true, fallback);
     }

src/java.datatransfer/share/classes/java/awt/datatransfer/SystemFlavorMap.java

@@ -30,8 +30,6 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.lang.ref.SoftReference;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -202,12 +200,8 @@ private void initSystemFlavorMap() {
         }
         isMapInitialized = true;
 
-        @SuppressWarnings("removal")
-        InputStream is = AccessController.doPrivileged(
-            (PrivilegedAction<InputStream>) () -> {
-                return SystemFlavorMap.class.getResourceAsStream(
+        InputStream is = SystemFlavorMap.class.getResourceAsStream(
                         "/sun/datatransfer/resources/flavormap.properties");
-            });
         if (is == null) {
             throw new InternalError("Default flavor mapping not found");
         }