8029876: Add a test to verify that Logger.getLogger & LogManager.getLogManager...

8029876: Add a test to verify that Logger.getLogger & LogManager.getLogManager don't throw NPE when System.out == null
Summary: Adds a new test that verifies that the suspected root cause of JDK-8025512 does not cause NPE to be thrown.
Reviewed-by: mchung

test/java/util/logging/TestGetLoggerNPE.java

+/*
+ * Copyright (c) 2013, 2014, 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.
+ */
+import java.io.PrintStream;
+import java.security.Permission;
+import java.security.Policy;
+import java.security.ProtectionDomain;
+import java.util.logging.LogManager;
+import java.util.logging.Logger;
+import sun.misc.JavaAWTAccess;
+import sun.misc.SharedSecrets;
+
+/*
+ * @test
+ * @bug 8025512
+ *
+ * @summary NPE with logging while launching webstart
+ *
+ * @build TestGetLoggerNPE
+ * @run main/othervm TestGetLoggerNPE getLogger
+ * @run main/othervm TestGetLoggerNPE getLogManager
+ */
+public class TestGetLoggerNPE {
+    static volatile Throwable thrown = null;
+    public static void main(String[] args) throws Exception {
+        final String testCase = args.length == 0 ? "getLogger" : args[0];
+        final JavaAWTAccessStub access = new JavaAWTAccessStub();
+        SharedSecrets.setJavaAWTAccess(access);
+        final ThreadGroup tg = new ThreadGroup("TestGroup");
+        Thread t = new Thread(tg, "test") {
+            public void run() {
+                try {
+                    access.setContext(Context.ONE);
+                    final PrintStream out = System.out;
+                    System.setOut(null);
+                    try {
+                        if ("getLogger".equals(testCase)) {
+                           Logger.getLogger("sun.plugin");
+                        } else {
+                           LogManager.getLogManager();
+                        }
+                    } finally {
+                        System.setOut(out);
+                    }
+
+                    System.out.println(Logger.global);
+                } catch (Throwable x) {
+                    x.printStackTrace();
+                    thrown = x;
+                }
+            }
+        };
+        Policy.setPolicy(new Policy() {
+             public boolean implies(ProtectionDomain domain,
+                                    Permission permission) {
+                 return true; // all permissions
+             }
+        });
+        System.setSecurityManager(new SecurityManager());
+        t.start();
+        t.join();
+        if (thrown == null) {
+            System.out.println("PASSED: " + testCase);
+        } else {
+            System.err.println("FAILED: " + testCase);
+            throw new Error("Test failed: " + testCase + " - " + thrown, thrown);
+        }
+
+    }
+
+    static enum Context { ONE, TWO };
+
+    static final class JavaAWTAccessStub implements JavaAWTAccess {
+        private static final InheritableThreadLocal<Context> context = new InheritableThreadLocal<>();
+
+
+        public void setContext(Context context) {
+            JavaAWTAccessStub.context.set(context);
+        }
+
+        @Override
+        public Object getAppletContext() {
+            return context.get();
+        }
+
+     }
+
+}