private int getHttpsPort() {
try {
MBeanServer mBeanServer = MBeanServerFactory.findMBeanServer(null).get(0);
QueryExp query = Query.eq(Query.attr("Scheme"), Query.value("https"));
Set<ObjectName> objectNames = mBeanServer.queryNames(null, query);
if (objectNames != null && objectNames.size() > 0) {
for (ObjectName objectName : objectNames) {
String name = objectName.toString();
if (name.indexOf("port=") > -1) {
String[] parts = name.split("port=");
String port = parts[1];
try {
int portNum = Integer.parseInt(port);
return portNum;
} catch (NumberFormatException e) {
logger.error("Error parsing https port:" + port);
return -1;
}
}
}
}
} catch (Throwable t) {
logger.error("Error getting https port:", t);
}
return -1;
}
public static void main(String[] args) throws Exception {
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
final Boolean isNotificationSupported =
AccessController.doPrivileged(
new PrivilegedAction<Boolean>() {
public Boolean run() {
try {
Class cl = Class.forName("sun.management.VMManagementImpl");
Field f = cl.getDeclaredField("gcNotificationSupport");
f.setAccessible(true);
return f.getBoolean(null);
} catch (ClassNotFoundException e) {
return false;
} catch (NoSuchFieldException e) {
return false;
} catch (IllegalAccessException e) {
return false;
}
}
});
if (!isNotificationSupported) {
System.out.println("GC Notification not supported by the JVM, test skipped");
return;
}
final ObjectName gcMXBeanPattern = new ObjectName("java.lang:type=GarbageCollector,*");
Set<ObjectName> names = mbs.queryNames(gcMXBeanPattern, null);
if (names.isEmpty()) throw new Exception("Test incorrect: no GC MXBeans");
number = names.size();
for (ObjectName n : names) {
if (mbs.isInstanceOf(n, "javax.management.NotificationEmitter")) {
listenerInvoked.put(n.getCanonicalName(), null);
GcListener listener = new GcListener();
mbs.addNotificationListener(n, listener, null, null);
}
}
// Invocation of System.gc() to trigger major GC
System.gc();
// Allocation of many short living and small objects to trigger minor GC
Object data[] = new Object[32];
for (int i = 0; i < 100000000; i++) {
data[i % 32] = new int[8];
}
int wakeup = 0;
synchronized (synchronizer) {
while (count != number) {
synchronizer.wait(10000);
wakeup++;
if (wakeup > 10) break;
}
}
for (GarbageCollectionNotificationInfo notif : listenerInvoked.values()) {
checkGarbageCollectionNotificationInfoContent(notif);
}
System.out.println("Test passed");
}
private static void checkPlatformMBeans() throws Exception {
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
Set<ObjectName> mbeanNames = mbs.queryNames(null, null);
for (ObjectName name : mbeanNames) {
if (!mbs.isInstanceOf(name, NotificationBroadcaster.class.getName())) {
System.out.println(name + ": not a NotificationBroadcaster");
} else {
MBeanInfo mbi = mbs.getMBeanInfo(name);
check(name.toString(), mbi.getNotifications());
}
}
}
static void MonitorGC(long h) {
handle = h;
List<GarbageCollectorMXBean> gcbeans =
java.lang.management.ManagementFactory.getGarbageCollectorMXBeans();
MBeanServer server = ManagementFactory.getPlatformMBeanServer();
try {
ObjectName gcName =
new ObjectName(ManagementFactory.GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE + ",*");
for (ObjectName name : server.queryNames(gcName, null)) {
GarbageCollectorMXBean gc =
ManagementFactory.newPlatformMXBeanProxy(
server, name.getCanonicalName(), GarbageCollectorMXBean.class);
gcbeans.add(gc);
NotificationEmitter emitter = (NotificationEmitter) gc;
NotificationListener listener =
new NotificationListener() {
@Override
public void handleNotification(Notification notification, Object handback) {
if (notification
.getType()
.equals(GarbageCollectionNotificationInfo.GARBAGE_COLLECTION_NOTIFICATION)) {
CompositeData ndata = (CompositeData) notification.getUserData();
GarbageCollectionNotificationInfo info =
GarbageCollectionNotificationInfo.from(ndata);
boolean major = "end of major GC".equals(info.getGcAction());
long free = Runtime.getRuntime().freeMemory();
long total = Runtime.getRuntime().totalMemory();
long qty = (15 * total) - (free * 100);
if (qty > 0) {
NotifyOSv(handle, qty);
}
}
}
};
emitter.addNotificationListener(listener, null, null);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
