1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
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  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
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  23 
  24 /* @test
  25  * @bug 4105080
  26  * @summary Activation retry during a remote method call to an activatable
  27  *          object can cause infinite recursion in some situations. The
  28  *          RemoteRef contained in the ActivatableRef should never be
  29  *          an ActivatableRef, but another type.
  30  * (Needs /othervm to evade JavaTest security manager --aecolley)
  31  * @author Ann Wollrath
  32  *
  33  * @bug 4164971
  34  * @summary allow non-public activatable class and/or constructor
  35  *          Main test class hasa non-public constructor to ensure
  36  *          functionality is in place
  37  *
  38  * @library ../../../testlibrary
  39  * @modules java.rmi/sun.rmi.registry
  40  *          java.rmi/sun.rmi.server
  41  *          java.rmi/sun.rmi.transport
  42  *          java.rmi/sun.rmi.transport.tcp
  43  * @build TestLibrary RMID ActivateMe CheckActivateRef_Stub
  44  * @run main/othervm/policy=security.policy/timeout=240 -Djava.rmi.server.ignoreStubClasses=true CheckActivateRef
  45  * @run main/othervm/policy=security.policy/timeout=240 -Djava.rmi.server.ignoreStubClasses=false CheckActivateRef
  46  * @key intermittent
  47  */
  48 
  49 import java.io.*;
  50 import java.rmi.*;
  51 import java.rmi.server.*;
  52 import java.rmi.activation.*;
  53 import sun.rmi.server.ActivatableRef;
  54 import java.lang.reflect.*;
  55 import java.util.Properties;
  56 
  57 public class CheckActivateRef
  58         extends Activatable
  59         implements ActivateMe, Runnable
  60 {
  61 
  62     private CheckActivateRef(ActivationID id, MarshalledObject obj)
  63         throws ActivationException, RemoteException
  64     {
  65         super(id, 0);
  66     }
  67 
  68     public void ping()
  69     {}
  70 
  71     /**
  72      * Spawns a thread to deactivate the object.
  73      */
  74     public void shutdown() throws Exception
  75     {
  76         (new Thread(this,"CheckActivateRef")).start();
  77     }
  78 
  79     /**
  80      * Thread to deactivate object. First attempts to make object
  81      * inactive (via the inactive method).  If that fails (the
  82      * object may still have pending/executing calls), then
  83      * unexport the object forcibly.
  84      */
  85     public void run() {
  86         ActivationLibrary.deactivate(this, getID());
  87     }
  88 
  89     public static void main(String[] args)  {
  90         /*
  91          * The following line is required with the JDK 1.2 VM so that the
  92          * VM can exit gracefully when this test completes.  Otherwise, the
  93          * conservative garbage collector will find a handle to the server
  94          * object on the native stack and not clear the weak reference to
  95          * it in the RMI runtime's object table.
  96          */
  97         Object dummy = new Object();
  98         RMID rmid = null;
  99         ActivateMe obj;
 100 
 101         // test should tolerate certain types of failures
 102         int failures = 0;
 103         int i = 0;
 104 
 105         System.err.println("\nRegression test for bug 4105080\n");
 106         System.err.println("java.security.policy = " +
 107                            System.getProperty("java.security.policy",
 108                                               "no policy"));
 109 
 110 
 111         String propValue =
 112             System.getProperty("java.rmi.server.useDynamicProxies", "false");
 113         boolean useDynamicProxies = Boolean.parseBoolean(propValue);
 114 
 115         CheckActivateRef server;
 116         try {
 117             TestLibrary.suggestSecurityManager(TestParams.defaultSecurityManager);
 118 
 119             // start an rmid.
 120             RMID.removeLog();
 121             rmid = RMID.createRMID();
 122             rmid.start();
 123 
 124             /* Cause activation groups to have a security policy that will
 125              * allow security managers to be downloaded and installed
 126              */
 127             Properties p = new Properties();
 128             // this test must always set policies/managers in its
 129             // activation groups
 130             p.put("java.security.policy",
 131                   TestParams.defaultGroupPolicy);
 132             p.put("java.security.manager",
 133                   TestParams.defaultSecurityManager);
 134             p.put("java.rmi.server.useDynamicProxies", propValue);
 135 
 136             /*
 137              * Activate an object by registering its object
 138              * descriptor and invoking a method on the
 139              * stub returned from the register call.
 140              */
 141             System.err.println("Create activation group in this VM");
 142             ActivationGroupDesc groupDesc =
 143                 new ActivationGroupDesc(p, null);
 144             ActivationSystem system = ActivationGroup.getSystem();
 145             ActivationGroupID groupID = system.registerGroup(groupDesc);
 146             ActivationGroup.createGroup(groupID, groupDesc, 0);
 147             System.err.println("Creating descriptor");
 148             ActivationDesc desc =
 149                 new ActivationDesc("CheckActivateRef", null, null);
 150             System.err.println("Registering descriptor");
 151             obj = (ActivateMe) Activatable.register(desc);
 152 
 153             System.err.println("proxy = " + obj);
 154 
 155             if (useDynamicProxies && !Proxy.isProxyClass(obj.getClass()))
 156             {
 157                 throw new RuntimeException("proxy is not dynamic proxy");
 158             }
 159 
 160             /*
 161              * Loop a bunch of times to force activator to
 162              * spawn VMs (groups)
 163              */
 164             try {
 165                 for (; i < 7; i++) {
 166 
 167                     System.err.println("Activate object via method call");
 168 
 169                     /*
 170                      * Fix for 4277196: if we got an inactive group
 171                      * exception, it is likely that we accidentally
 172                      * invoked a method on an old activation
 173                      * group. Give some time for the group to go away
 174                      * and then retry the activation.
 175                      */
 176                     try {
 177                         obj.ping();
 178                     } catch (RemoteException e) {
 179                         Exception detail = (Exception) e.detail;
 180                         if ((detail != null) &&
 181                             (detail instanceof ActivationException) &&
 182                             (detail.getMessage().equals("group is inactive")))
 183                         {
 184                             try {
 185                                 Thread.sleep(5000);
 186                             } catch (InterruptedException ex) {
 187                             }
 188                             obj.ping();
 189 
 190                         } else {
 191                             throw e;
 192                         }
 193                     }
 194 
 195                     System.err.println("proxy = " + obj);
 196 
 197                     /*
 198                      * Now that object is activated, check to make sure that
 199                      * the RemoteRef inside the stub's ActivatableRef
 200                      * is *not* an ActivatableRef.
 201                      */
 202                     ActivatableRef aref;
 203                     if (obj instanceof RemoteStub) {
 204                         aref = (ActivatableRef) ((RemoteObject) obj).getRef();
 205                     } else if (Proxy.isProxyClass(obj.getClass())) {
 206                         RemoteObjectInvocationHandler handler =
 207                             (RemoteObjectInvocationHandler)
 208                             Proxy.getInvocationHandler(obj);
 209                         aref = (ActivatableRef) handler.getRef();
 210                     } else {
 211                         throw new RuntimeException("unknown proxy type");
 212                     }
 213 
 214                     final ActivatableRef ref = aref;
 215                     Field f = (Field)
 216                         java.security.AccessController.doPrivileged
 217                         (new java.security.PrivilegedExceptionAction() {
 218                             public Object run() throws Exception {
 219                                 Field ff = ref.getClass().getDeclaredField("ref");
 220                                 ff.setAccessible(true);
 221                                 return ff;
 222                             }
 223                         });
 224                     Object insideRef = f.get(ref);
 225                     System.err.println("insideRef = " + insideRef);
 226                     if (insideRef instanceof ActivatableRef) {
 227                         TestLibrary.bomb("Embedded ref is an ActivatableRef");
 228                     } else {
 229                         System.err.println("ActivatableRef's embedded ref type: " +
 230                                            insideRef.getClass().getName());
 231                     }
 232 
 233                     /*
 234                      * Clean up object too.
 235                      */
 236                     System.err.println("Deactivate object via method call");
 237                     obj.shutdown();
 238 
 239                     try {
 240                         // give activation group time to go away
 241                         Thread.sleep(3000);
 242                     } catch (InterruptedException e) {
 243                     }
 244                 }
 245             } catch (java.rmi.UnmarshalException ue) {
 246                 // account for test's activation race condition
 247                 if (ue.detail instanceof java.io.IOException) {
 248                     if ((failures ++) >= 3) {
 249                         throw ue;
 250                     }
 251                 } else {
 252                     throw ue;
 253                 }
 254             }
 255 
 256             System.err.println("\nsuccess: CheckActivateRef test passed ");
 257 
 258         } catch (java.rmi.activation.ActivationException e) {
 259             // test only needs to pass 3 times in 7
 260             if (i < 4) {
 261                 TestLibrary.bomb(e);
 262             }
 263         } catch (Exception e) {
 264             if (e instanceof java.security.PrivilegedActionException)
 265                 e = ((java.security.PrivilegedActionException)e).getException();
 266             TestLibrary.bomb("\nfailure: unexpected exception " +
 267                              e.getClass().getName(), e);
 268 
 269         } finally {
 270             rmid.cleanup();
 271             obj = null;
 272         }
 273     }
 274 }
--- EOF ---