8012343: Objects.requireNonNull(Object,Supplier) breaks genstubs build

Reviewed-by: alanb

src/share/classes/java/util/Objects.java

 /*
- * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2011, 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
@@ -25,8 +25,6 @@
 
 package java.util;
 
-import java.util.function.Supplier;
-
 /**
  * This class consists of {@code static} utility methods for operating
  * on objects.  These utilities include {@code null}-safe or {@code
@@ -228,30 +226,4 @@ public final class Objects {
             throw new NullPointerException(message);
         return obj;
     }
-
-    /**
-     * Checks that the specified object reference is not {@code null} and
-     * throws a customized {@link NullPointerException} if it is.
-     *
-     * <p>Unlike the method {@link requireNonNull(Object, String},
-     * this method allows creation of the message to be deferred until
-     * after the null check is made. While this may confer a
-     * performance advantage in the non-null case, when deciding to
-     * call this method care should be taken that the costs of
-     * creating the message supplier are less than the cost of just
-     * creating the string message directly.
-     *
-     * @param obj     the object reference to check for nullity
-     * @param messageSupplier supplier of the detail message to be
-     * used in the event that a {@code NullPointerException} is thrown
-     * @param <T> the type of the reference
-     * @return {@code obj} if not {@code null}
-     * @throws NullPointerException if {@code obj} is {@code null}
-     * @since 1.8
-     */
-    public static <T> T requireNonNull(T obj, Supplier<String> messageSupplier) {
-        if (obj == null)
-            throw new NullPointerException(messageSupplier.get());
-        return obj;
-    }
 }

test/java/util/Objects/BasicObjectsTest.java

 /*
- * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2011, 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
@@ -23,13 +23,12 @@
 
 /*
  * @test
- * @bug 6797535 6889858 6891113 8011800
+ * @bug 6797535 6889858 6891113
  * @summary Basic tests for methods in java.util.Objects
  * @author  Joseph D. Darcy
  */
 
 import java.util.*;
-import java.util.function.*;
 
 public class BasicObjectsTest {
     public static void main(String... args) {
@@ -41,7 +40,7 @@ public class BasicObjectsTest {
         errors += testToString();
         errors += testToString2();
         errors += testCompare();
-        errors += testRequireNonNull();
+        errors += testNonNull();
         if (errors > 0 )
             throw new RuntimeException();
     }
@@ -159,54 +158,49 @@ public class BasicObjectsTest {
         return errors;
     }
 
-    private static int testRequireNonNull() {
+    private static int testNonNull() {
         int errors = 0;
+        String s;
 
-        final String RNN_1 = "1-arg requireNonNull";
-        final String RNN_2 = "2-arg requireNonNull";
-        final String RNN_3 = "Supplier requireNonNull";
-
-        Function<String, String> rnn1 = s -> Objects.requireNonNull(s);
-        Function<String, String> rnn2 = s -> Objects.requireNonNull(s, "trousers");
-        Function<String, String> rnn3 = s -> Objects.requireNonNull(s, () -> "trousers");
-
-        errors += testRNN_NonNull(rnn1, RNN_1);
-        errors += testRNN_NonNull(rnn2, RNN_2);
-        errors += testRNN_NonNull(rnn3, RNN_3);
+        // Test 1-arg variant
+        try {
+            s = Objects.requireNonNull("pants");
+            if (s != "pants") {
+                System.err.printf("1-arg non-null failed to return its arg");
+                errors++;
+            }
+        } catch (NullPointerException e) {
+            System.err.printf("1-arg nonNull threw unexpected NPE");
+            errors++;
+        }
 
-        errors += testRNN_Null(rnn1, RNN_1, null);
-        errors += testRNN_Null(rnn2, RNN_2, "trousers");
-        errors += testRNN_Null(rnn3, RNN_3, "trousers");
-        return errors;
-    }
+        try {
+            s = Objects.requireNonNull(null);
+            System.err.printf("1-arg nonNull failed to throw NPE");
+            errors++;
+        } catch (NullPointerException e) {
+            // Expected
+        }
 
-    private static int testRNN_NonNull(Function<String, String> testFunc,
-                                           String testFuncName) {
-        int errors = 0;
+        // Test 2-arg variant
         try {
-            String s = testFunc.apply("pants");
+            s = Objects.requireNonNull("pants", "trousers");
             if (s != "pants") {
-                System.err.printf(testFuncName + " failed to return its arg");
+                System.err.printf("2-arg nonNull failed to return its arg");
                 errors++;
             }
         } catch (NullPointerException e) {
-            System.err.printf(testFuncName + " threw unexpected NPE");
+            System.err.printf("2-arg nonNull threw unexpected NPE");
             errors++;
         }
-        return errors;
-    }
 
-    private static int testRNN_Null(Function<String, String> testFunc,
-                                               String testFuncName,
-                                               String expectedMessage) {
-        int errors = 0;
         try {
-            String s = testFunc.apply(null);
-            System.err.printf(testFuncName + " failed to throw NPE");
+            s = Objects.requireNonNull(null, "pantaloons");
+            System.err.printf("2-arg nonNull failed to throw NPE");
             errors++;
         } catch (NullPointerException e) {
-            if (e.getMessage() != expectedMessage) {
-                System.err.printf(testFuncName + " threw NPE w/ bad detail msg");
+            if (e.getMessage() != "pantaloons") {
+                System.err.printf("2-arg nonNull threw NPE w/ bad detail msg");
                 errors++;
             }
         }