src/java.base/share/classes/sun/reflect/misc/MethodUtil.java

@@ -23,10 +23,11 @@
  * questions.
  */
 
 package sun.reflect.misc;
 
+import java.io.EOFException;
 import java.security.AllPermission;
 import java.security.AccessController;
 import java.security.PermissionCollection;
 import java.security.SecureClassLoader;
 import java.security.PrivilegedExceptionAction;

@@ -41,11 +42,10 @@
 import java.lang.reflect.AccessibleObject;
 import java.lang.reflect.Modifier;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
-import sun.misc.IOUtils;
 
 
 class Trampoline {
     static {
         if (Trampoline.class.getClassLoader() == null) {

@@ -366,20 +366,17 @@
             if (code >= java.net.HttpURLConnection.HTTP_BAD_REQUEST) {
                 throw new IOException("open HTTP connection failed.");
             }
         }
         int len = uc.getContentLength();
-        InputStream in = new BufferedInputStream(uc.getInputStream());
-
-        byte[] b;
-        try {
-            b = IOUtils.readFully(in, len, true);
-        } finally {
-            in.close();
-        }
+        try (InputStream in = new BufferedInputStream(uc.getInputStream())) {
+            byte[] b = in.readAllBytes();
+            if (len != -1 && b.length != len)
+                throw new EOFException("Expected:" + len + ", read:" + b.length);
         return b;
     }
+    }
 
 
     protected PermissionCollection getPermissions(CodeSource codesource)
     {
         PermissionCollection perms = super.getPermissions(codesource);