test/java/rmi/server/RemoteObject/notExtending/NotExtending.java
Print this page
rev 11093 : 8035117: TEST_BUG: java/rmi/server/RemoteObject/notExtending/NotExtending.java can fail with timeout
Reviewed-by: XXX
*** 28,38 ****
* can be successfully compared to RemoteObject instances
* (specifically: stubs) that contain the instance's RemoteRef.
* @author Peter Jones
*
* @build NotExtending_Stub NotExtending_Skel
! * @run main/othervm/timeout=240 NotExtending
*/
import java.rmi.*;
import java.rmi.server.*;
--- 28,38 ----
* can be successfully compared to RemoteObject instances
* (specifically: stubs) that contain the instance's RemoteRef.
* @author Peter Jones
*
* @build NotExtending_Stub NotExtending_Skel
! * @run main/othervm NotExtending
*/
import java.rmi.*;
import java.rmi.server.*;
*** 44,142 ****
/** value of stub's hash code */
private int hashValue;
/** true if the hashValue field has been initialized */
private boolean hashValueInitialized = false;
! public NotExtending() throws RemoteException {
stub = UnicastRemoteObject.exportObject(this);
setHashValue(stub.hashCode());
}
private void setHashValue(int value) {
hashValue = value;
hashValueInitialized = true;
}
public int hashCode() {
/*
! * Test fails with a RuntimeException if the hashCode() method is
! * called (during the export procedure) before the correct hash
! * value has been initialized.
*/
if (!hashValueInitialized) {
! throw new RuntimeException(
"hashCode() invoked before hashValue initialized");
}
return hashValue;
}
public boolean equals(Object obj) {
return stub.equals(obj);
}
public static void main(String[] args) throws Exception {
! /*
! * The following line is required with the JDK 1.2 VM so that the
! * VM can exit gracefully when this test completes. Otherwise, the
! * conservative garbage collector will find a handle to the server
! * object on the native stack and not clear the weak reference to
! * it in the RMI runtime's object table.
! */
! Object dummy = new Object();
- NotExtending server;
try {
/*
* Verify that hashCode() is not invoked before it is
* initialized. Tests bugid 4102938.
*/
server = new NotExtending();
System.err.println("Server exported without invoking hashCode().");
/*
* Verify that passing stub to server's equals() method
* returns true.
*/
! if (server.equals(server.stub)) {
! System.err.println(
! "Passing stub to server's equals() method succeeded.");
} else {
! throw new RuntimeException(
! "passing stub to server's equals() method failed");
}
/*
* Verify that passing server to stub's equals() method
* returns true. Tests bugid 4099660.
*/
! if (server.stub.equals(server)) {
! System.err.println(
! "Passing server to stub's equals() method succeeded.");
} else {
! throw new RuntimeException(
! "passing server to stub's equals() method failed");
}
-
} finally {
! server = null;
! flushCachedRefs();
! }
! }
!
! /**
! * Force desperate garbage collection so that soft references
! * will be cleared.
! *
! * This method is required with the JDK 1.1.x RMI runtime so that the
! * VM can exit gracefully when this test completes. See bugid 4006356.
! */
! public static void flushCachedRefs() {
! java.util.Vector chain = new java.util.Vector();
! try {
! while (true) {
! int[] hungry = new int[65536];
! chain.addElement(hungry);
}
- } catch (OutOfMemoryError e) {
}
}
}
--- 44,119 ----
/** value of stub's hash code */
private int hashValue;
/** true if the hashValue field has been initialized */
private boolean hashValueInitialized = false;
! // no declared constructor - rely on implicit no-arg contructor
!
! public Remote export() throws RemoteException {
stub = UnicastRemoteObject.exportObject(this);
setHashValue(stub.hashCode());
+ return stub;
+ }
+
+ public void unexport() throws RemoteException {
+ UnicastRemoteObject.unexportObject(this, true);
}
private void setHashValue(int value) {
hashValue = value;
hashValueInitialized = true;
}
public int hashCode() {
/*
! * Test fails if the hashCode() method is called (during export)
! * before the correct hash value has been initialized.
*/
if (!hashValueInitialized) {
! throw new AssertionError(
"hashCode() invoked before hashValue initialized");
}
return hashValue;
}
public boolean equals(Object obj) {
return stub.equals(obj);
}
public static void main(String[] args) throws Exception {
! NotExtending server = null;
try {
/*
* Verify that hashCode() is not invoked before it is
* initialized. Tests bugid 4102938.
*/
server = new NotExtending();
+ Remote stub = server.export();
System.err.println("Server exported without invoking hashCode().");
/*
* Verify that passing stub to server's equals() method
* returns true.
*/
! if (server.equals(stub)) {
! System.err.println("server.equals(stub) returns true");
} else {
! throw new AssertionError("server.equals(stub) returns false");
}
/*
* Verify that passing server to stub's equals() method
* returns true. Tests bugid 4099660.
*/
! if (stub.equals(server)) {
! System.err.println("stub.equals(server) returns true");
} else {
! throw new AssertionError("stub.equals(server) returns false");
}
} finally {
! if (server != null) {
! server.unexport();
}
}
}
}