sun.rmi.transport.DGCAckHandler Java Examples
The following examples show how to use
sun.rmi.transport.DGCAckHandler.
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Example #1
| Source File: DGCAckFailure.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
Example #2
| Source File: TCPTransport.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #3
| Source File: TCPTransport.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #4
| Source File: DGCAckFailure.java From jdk8u_jdk with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
Example #5
| Source File: TCPTransport.java From jdk8u_jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #6
| Source File: TCPTransport.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #7
| Source File: TCPTransport.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #8
| Source File: DGCAckFailure.java From hottub with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
Example #9
| Source File: TCPTransport.java From hottub with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #10
| Source File: DGCAckFailure.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
Example #11
| Source File: TCPTransport.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #12
| Source File: TCPTransport.java From dragonwell8_jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #13
| Source File: TCPTransport.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #14
| Source File: DGCAckFailure.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
Example #15
| Source File: TCPTransport.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #16
| Source File: DGCAckFailure.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
Example #17
| Source File: TCPTransport.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #18
| Source File: TCPTransport.java From jdk8u60 with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #19
| Source File: DGCAckFailure.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
Example #20
| Source File: TCPTransport.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
|
/**
* handleMessages decodes transport operations and handles messages
* appropriately. If an exception occurs during message handling,
* the socket is closed.
*/
void handleMessages(Connection conn, boolean persistent) {
int port = getEndpoint().getPort();
try {
DataInputStream in = new DataInputStream(conn.getInputStream());
do {
int op = in.read(); // transport op
if (op == -1) {
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " +
port + ") connection closed");
}
break;
}
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") op = " + op);
}
switch (op) {
case TransportConstants.Call:
// service incoming RMI call
RemoteCall call = new StreamRemoteCall(conn);
if (serviceCall(call) == false)
return;
break;
case TransportConstants.Ping:
// send ack for ping
DataOutputStream out =
new DataOutputStream(conn.getOutputStream());
out.writeByte(TransportConstants.PingAck);
conn.releaseOutputStream();
break;
case TransportConstants.DGCAck:
DGCAckHandler.received(UID.read(in));
break;
default:
throw new IOException("unknown transport op " + op);
}
} while (persistent);
} catch (IOException e) {
// exception during processing causes connection to close (below)
if (tcpLog.isLoggable(Log.BRIEF)) {
tcpLog.log(Log.BRIEF, "(port " + port +
") exception: ", e);
}
} finally {
try {
conn.close();
} catch (IOException ex) {
// eat exception
}
}
}
Example #21
| Source File: DGCAckFailure.java From dragonwell8_jdk with GNU General Public License v2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.dgc.ackTimeout",
Long.toString(ACK_TIMEOUT));
/*
* Set a socket factory that has a hook for shutting down all client
* output (writes from client-created sockets and new connection
* attempts). We then use this hook right before a remote stub gets
* deserialized, so that the client will not be able to send a DGC
* dirty call, or a DGC acknowledgment. Without the DGC ack, we
* hope that the RMI runtime will still eventually allow the remote
* object to be garbage collected.
*/
RMISocketFactory.setSocketFactory(new TestSF());
System.err.println("test socket factory set");
Remote impl = new DGCAckFailure();
ReferenceQueue refQueue = new ReferenceQueue();
Reference weakRef = new WeakReference(impl, refQueue);
ReturnRemote stub =
(ReturnRemote) UnicastRemoteObject.exportObject(impl);
System.err.println("remote object exported; stub = " + stub);
try {
Object wrappedStub = stub.returnRemote();
System.err.println("invocation returned: " + wrappedStub);
impl = null;
stub = null; // in case 4114579 ever gets fixed
System.err.println("strong references to impl cleared");
System.err.println("waiting for weak reference notification:");
Reference ref = null;
for (int i = 0; i < 6; i++) {
System.gc();
ref = refQueue.remove(TIMEOUT / 5);
if (ref != null) {
break;
}
}
if (ref != weakRef) {
throw new RuntimeException("TEST FAILED: " +
"timed out, remote object not garbage collected");
}
// 8046339
// All DGCAckHandlers must be properly released after timeout
Thread.sleep(ACK_TIMEOUT + 100);
try {
Field field =
DGCAckHandler.class.getDeclaredField("idTable");
field.setAccessible(true);
Object obj = field.get(null);
Map<?,?> idTable = (Map<?,?>)obj;
if (!idTable.isEmpty()) {
throw new RuntimeException("TEST FAILED: " +
"DGCAckHandler.idTable isn't empty");
}
} catch (ReflectiveOperationException roe) {
throw new RuntimeException(roe);
}
System.err.println("TEST PASSED");
} finally {
try {
UnicastRemoteObject.unexportObject((Remote) weakRef.get(),
true);
} catch (Exception e) {
}
}
}
