--- a/langtools/src/share/classes/com/sun/tools/javah/JavahTask.java	Fri Oct 29 12:47:49 2010 -0700
+++ b/langtools/src/share/classes/com/sun/tools/javah/JavahTask.java	Fri Oct 29 13:12:38 2010 -0700
@@ -26,6 +26,7 @@
 package com.sun.tools.javah;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.PrintWriter;
@@ -74,6 +75,7 @@
 import static javax.tools.Diagnostic.Kind.*;
 
 import com.sun.tools.javac.code.Symbol.CompletionFailure;
+import com.sun.tools.javac.main.CommandLine;
 
 /**
  * Javah generates support files for native methods.
@@ -362,7 +364,7 @@
         if (fileManager == null)
             fileManager = getDefaultFileManager(diagnosticListener, log);
 
-        Iterator<String> iter = args.iterator();
+        Iterator<String> iter = expandAtArgs(args).iterator();
         noArgs = !iter.hasNext();
 
         while (iter.hasNext()) {
@@ -416,6 +418,18 @@
         throw new BadArgs("err.unknown.option", name).showUsage(true);
     }
 
+    private Iterable<String> expandAtArgs(Iterable<String> args) throws BadArgs {
+        try {
+            List<String> l = new ArrayList<String>();
+            for (String arg: args) l.add(arg);
+            return Arrays.asList(CommandLine.parse(l.toArray(new String[l.size()])));
+        } catch (FileNotFoundException e) {
+            throw new BadArgs("at.args.file.not.found", e.getLocalizedMessage());
+        } catch (IOException e) {
+            throw new BadArgs("at.args.io.exception", e.getLocalizedMessage());
+        }
+    }
+
     public Boolean call() {
         return run();
     }
@@ -607,8 +621,8 @@
             }
 
         };
+    }
 
-    }
     private String getMessage(String key, Object... args) {
         return getMessage(task_locale, key, args);
     }

--- a/langtools/src/share/classes/com/sun/tools/javah/resources/l10n.properties	Fri Oct 29 12:47:49 2010 -0700
+++ b/langtools/src/share/classes/com/sun/tools/javah/resources/l10n.properties	Fri Oct 29 13:12:38 2010 -0700
@@ -30,6 +30,8 @@
         The directory {0} could not be create for output.
 at.args.cant.read=\
         Can''t read command line arguments from file {1}.
+at.args.file.not.found=\
+        Can''t find file {0}.
 at.args.io.exception=\
         The following I/O problem was encountered when processing an @ \
         argument on the command line: {0}.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javah/T6994608.java	Fri Oct 29 13:12:38 2010 -0700
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2010, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 6994608
+ * @summary javah no longer accepts parameter files as input
+ */
+
+import java.io.*;
+import java.util.*;
+
+public class T6994608 {
+    public static void main(String... args) throws Exception {
+        new T6994608().run();
+    }
+
+    void run() throws Exception {
+        Locale prev = Locale.getDefault();
+        Locale.setDefault(Locale.ENGLISH);
+        try {
+            File f = writeFile(new File("classList"), "java.lang.Object");
+            test(Arrays.asList("@" + f.getPath()), 0, null);
+            test(Arrays.asList("@badfile"), 1, "Can't find file badfile");
+            if (errors > 0)
+                throw new Exception(errors + " errors occurred");
+        } finally {
+            Locale.setDefault(prev);
+        }
+    }
+
+    void test(List<String> args, int expectRC, String expectOut) {
+        System.err.println("Test: " + args
+                + " rc:" + expectRC
+                + ((expectOut != null) ? " out:" + expectOut : ""));
+
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        int rc = com.sun.tools.javah.Main.run(args.toArray(new String[args.size()]), pw);
+        pw.close();
+        String out = sw.toString();
+        if (!out.isEmpty())
+            System.err.println(out);
+
+        if (rc != expectRC)
+            error("Unexpected exit code: " + rc + "; expected: " + expectRC);
+        if (expectOut != null && !out.contains(expectOut))
+            error("Expected string not found: " + expectOut);
+
+        System.err.println();
+    }
+
+    File writeFile(File f, String s) throws IOException {
+        if (f.getParentFile() != null)
+            f.getParentFile().mkdirs();
+        try (FileWriter out = new FileWriter(f)) {
+            out.write(s);
+        }
+        return f;
+    }
+
+    void error(String msg) {
+        System.err.println(msg);
+        errors++;
+    }
+
+    int errors;
+}
+