jdk/test/java/security/Provider/RemoveProvider.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/security/Provider/RemoveProvider.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,181 @@
+/*
+ * 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 4190873
+ * @summary Make sure provider instance can be removed from list of registered
+ * providers, and "entrySet", "keySet", and "values" methods don't loop
+ * indefinitely.
+ */
+import java.security.*;
+import java.util.*;
+
+public class RemoveProvider {
+
+    public static void main(String[] args) throws Exception {
+
+        // Add provider 1
+        Provider p1 = new MyProvider("name1",1,"");
+        Security.addProvider(p1);
+
+        // Add provider 2
+        Provider p2 = new MyProvider("name2",1,"");
+        Security.addProvider(p2);
+
+        // List all providers
+        System.out.println("// List all providers");
+        Provider[] provs = Security.getProviders();
+        for (int i=0; i<provs.length; i++)
+            System.out.println(provs[i].toString());
+
+        // Remove one provider and list all remaining providers
+        System.out.println("");
+        System.out.println("// Remove one provider");
+        Security.removeProvider("name1");
+        provs = Security.getProviders();
+        for (int i=0; i<provs.length; i++)
+            System.out.println(provs[i].toString());
+
+        // Iterate over the entrySet
+        System.out.println("");
+        System.out.println("// Iterate over entrySet");
+        Map.Entry me = null;
+        Set es = p1.entrySet();
+        Iterator i = es.iterator();
+        while (i.hasNext()) {
+            me = (Map.Entry)i.next();
+            System.out.println("Key: " + (String)me.getKey());
+            System.out.println("Value: " + (String)me.getValue());
+        }
+        // Try to modify the backing Map, and catch the expected exception
+        try {
+            me.setValue("name1.mac");
+            throw new Exception("Expected exception not thrown");
+        } catch (UnsupportedOperationException uoe) {
+            System.out.println("Expected exception caught");
+        }
+
+        // Iterate over the keySet, and try to remove one (should fail)
+        System.out.println("");
+        System.out.println("// Iterate over keySet");
+        Object o = null;
+        Set ks = p1.keySet();
+        i = ks.iterator();
+        while (i.hasNext()) {
+            o = i.next();
+            System.out.println((String)o);
+        }
+        try {
+            ks.remove(o);
+            throw new Exception("Expected exception not thrown");
+        } catch (UnsupportedOperationException uoe) {
+        }
+
+        // Iterate over the map values
+        System.out.println("");
+        System.out.println("// Iterate over values");
+        Collection c = p1.values();
+        i = c.iterator();
+        while (i.hasNext()) {
+            System.out.println((String)i.next());
+        }
+
+        // Modify provider and make sure changes are reflected in
+        // existing entrySet (i.e., make sure entrySet is "live").
+        // First, add entry to provider.
+        System.out.println("");
+        System.out.println("// Add 'Cipher' entry to provider");
+        p1.put("Cipher", "name1.des");
+        //  entrySet
+        i = es.iterator();
+        boolean found = false;
+        while (i.hasNext()) {
+            me = (Map.Entry)i.next();
+            System.out.println("Key: " + (String)me.getKey());
+            System.out.println("Value: " + (String)me.getValue());
+            if (((String)me.getKey()).equals("Cipher"))
+                found = true;
+        }
+        if (!found)
+            throw new Exception("EntrySet not live");
+        // keySet
+        i = ks.iterator();
+        while (i.hasNext()) {
+            o = i.next();
+            System.out.println((String)o);
+        }
+        // collection
+        i = c.iterator();
+        while (i.hasNext()) {
+            System.out.println((String)i.next());
+        }
+
+        // Remove entry from provider
+        System.out.println("");
+        System.out.println("// Remove 'Digest' entry from provider");
+        p1.remove("Digest");
+        // entrySet
+        i = es.iterator();
+        while (i.hasNext()) {
+            me = (Map.Entry)i.next();
+            System.out.println("Key: " + (String)me.getKey());
+            System.out.println("Value: " + (String)me.getValue());
+        }
+        // keySet
+        i = ks.iterator();
+        while (i.hasNext()) {
+            o = i.next();
+            System.out.println((String)o);
+        }
+        // collection
+        i = c.iterator();
+        while (i.hasNext()) {
+            System.out.println((String)i.next());
+        }
+
+        // Retrieve new entrySet and make sure the backing Map cannot be
+        // mofified
+        es = p1.entrySet();
+        i = es.iterator();
+        while (i.hasNext()) {
+            me = (Map.Entry)i.next();
+            System.out.println("Key: " + (String)me.getKey());
+            System.out.println("Value: " + (String)me.getValue());
+        }
+        try {
+            me.setValue("name1.mac");
+            throw new Exception("Expected exception not thrown");
+        } catch (UnsupportedOperationException uoe) {
+            System.out.println("Expected exception caught");
+        }
+    }
+}
+
+class MyProvider extends Provider {
+    public MyProvider(String name, double version, String info) {
+        super(name, version, info);
+        put("Signature", name+".signature");
+        put("Digest", name+".digest");
+    }
+}