Initial load
diff --git a/test/java/io/Reader/ReadParams.java b/test/java/io/Reader/ReadParams.java
new file mode 100644
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+++ b/test/java/io/Reader/ReadParams.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 1998 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4127657
+ * @summary Check for correct handling of parameters to
+ *          XXXXReader.read(b, off, len).
+ *
+ */
+
+import java.io.*;
+
+public class ReadParams {
+    static int values[] = {Integer.MIN_VALUE, -1, 0, 1, 4, 16, 31,
+                           32, 33, Integer.MAX_VALUE};
+    static char b[][] = {null, new char[32]};
+
+    static void test(Reader rdr) throws Exception {
+        int i = 0, j = 0, k = 0;
+        boolean nullPtr = false, indexOutBnd = false;
+
+        for (i = 0; i < b.length; i++) {
+            for ( j = 0; j < values.length; j++) {
+                for ( k = 0; k < values.length; k++) {
+
+                    nullPtr = (b[i] == null);
+
+                    int bufLen = nullPtr ? 0 : b[i].length;
+                    indexOutBnd = ((values[j] + values[k]) < 0)
+                        ||(values[j] < 0)
+                        || (values[j] > bufLen)
+                        || (values[k] < 0)
+                        || ((values[j] + values[k]) > bufLen);
+
+                    try {
+                        rdr.read(b[i], values[j], values[k]);
+                    } catch (NullPointerException e) {
+                        if (!nullPtr) {
+                            throw new Exception
+                                ("should not throw NullPointerException" + i + " " +j + " " + k);
+                        }
+                        continue;
+                    } catch (IndexOutOfBoundsException e) {
+                        if (!indexOutBnd) {
+                            throw new Exception
+                                ("should not throw IndexOutOfBoundsException");
+                        }
+                        continue;
+                    }
+
+                    if (nullPtr || indexOutBnd) {
+                        throw new Exception("Should have thrown an exception");
+                    }
+                }
+            }
+        }
+    }
+
+    public static void main(String args[]) throws Exception{
+        StringReader sr = new StringReader(new String(new byte[512]));
+        test(sr);
+
+        test(new BufferedReader(sr));
+
+        test(new CharArrayReader(new char[8]));
+
+        InputStreamReader ir = new InputStreamReader
+            (new ByteArrayInputStream(new byte[512]));
+        test(ir);
+
+        test(new PushbackReader(sr, 2));
+
+        PipedWriter pw = new PipedWriter();
+        PipedReader pir = new PipedReader(pw);
+        pw.write(new char[512], 0, 512);
+        test(pir);
+    }
+}