/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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*/
/* @test
* @summary When an object is retrieved from a MarshalledObject, callbacks
* that were registered by objects in the graph for execution when the
* unmarshalling is done should get executed. This is verified by way of
* an exported object's stub getting unmarshalled, and then garbage
* collected, in which case the impl's unreferenced() method should get
* invoked.
* @author Peter Jones
*
* @build MarshalledObjectGet_Stub
* @run main/othervm/timeout=120 MarshalledObjectGet
*/
import java.rmi.MarshalledObject;
import java.rmi.Remote;
import java.rmi.server.UnicastRemoteObject;
import java.rmi.server.Unreferenced;
public class MarshalledObjectGet implements Remote, Unreferenced {
private static final String BINDING = "MarshalledObjectGet";
private static final long GC_INTERVAL = 6000;
private static final long TIMEOUT = 50000;
private Object lock = new Object();
private boolean unreferencedInvoked;
public void unreferenced() {
System.err.println("unreferenced() method invoked");
synchronized (lock) {
unreferencedInvoked = true;
lock.notify();
}
}
public static void main(String[] args) {
System.err.println(
"\nTest to verify correction interaction of " +
"MarshalledObject.get and DGC registration\n");
/*
* Set the interval that RMI will request for GC latency (before RMI
* gets initialized and this property is read) to an unrealistically
* small value, so that this test shouldn't have to wait too long.
*/
System.setProperty("sun.rmi.dgc.client.gcInterval",
String.valueOf(GC_INTERVAL));
MarshalledObjectGet obj = new MarshalledObjectGet();
try {
Remote stub = UnicastRemoteObject.exportObject(obj);
System.err.println("exported remote object");
MarshalledObject mobj = new MarshalledObject(stub);
Remote unmarshalledStub = (Remote) mobj.get();
System.err.println("unmarshalled stub from marshalled object");
synchronized (obj.lock) {
obj.unreferencedInvoked = false;
unmarshalledStub = null;
System.gc();
System.err.println("cleared unmarshalled stub");
System.err.println("waiting for unreferenced() callback " +
"(SHOULD happen)...");
obj.lock.wait(TIMEOUT);
if (obj.unreferencedInvoked) {
// TEST PASSED
} else {
throw new RuntimeException(
"TEST FAILED: unrefereced() not invoked after " +
((double) TIMEOUT / 1000.0) + " seconds");
}
}
System.err.println("TEST PASSED");
} catch (Exception e) {
if (e instanceof RuntimeException) {
throw (RuntimeException) e;
} else {
throw new RuntimeException(
"TEST FAILED: unexpected exception: " + e.toString());
}
} finally {
if (obj != null) {
try {
UnicastRemoteObject.unexportObject(obj, true);
} catch (Exception e) {
}
}
}
}
}