7197642: (sl) ServiceLoader.load(null) doesn't throw NPE

Reviewed-by: alanb

src/share/classes/java/util/ServiceLoader.java

@@ -213,7 +213,7 @@ public final class ServiceLoader<S>
     }
 
     private ServiceLoader(Class<S> svc, ClassLoader cl) {
-        service = svc;
+        service = Objects.requireNonNull(svc, "Service interface cannot be null");
         loader = cl;
         reload();
     }

test/java/util/ServiceLoader/NPE.java

+/*
+ * Copyright (c) 2012, 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 7197642
+ * @summary test ServiceLoader.load methods for NullPointerException.
+ */
+import java.util.ServiceLoader;
+import java.util.Arrays;
+
+public final class NPE {
+    static abstract class Test {
+        String name;
+
+        Test(String name) { this.name = name; }
+
+        abstract void run();
+    }
+
+    static Test load = new Test("ServiceLoader.load(null)") {
+        void run() { ServiceLoader.load(null); }
+    };
+
+    static Test loadWithClassLoader = new Test("ServiceLoader.load(null, loader)") {
+        void run() { ServiceLoader.load(null, NPE.class.getClassLoader()); }
+    };
+
+    static Test loadInstalled = new Test("ServiceLoader.loadInstalled(null)") {
+        void run() { ServiceLoader.loadInstalled(null); }
+    };
+
+    public static void main(String[] args) throws Exception {
+        for (Test t : Arrays.asList(load, loadWithClassLoader, loadInstalled)) {
+            NullPointerException caught = null;
+            try {
+                t.run();
+            } catch (NullPointerException e) {
+                caught = e;
+            }
+            if (caught == null) {
+                throw new RuntimeException("NullPointerException expected for method invocation of " + t.name);
+            }
+        }
+    }
+}
+