Seit Java 7 Update 5 fordert meine Java Web Start-Anwendung die Berechtigung zum Herstellen von Verbindungen an. Der Antrag ist mit einem gültigen Zertifikat signiert.

Ein Popup mit folgendem Text wird angezeigt:

Die Anwendung hat um Erlaubnis gebeten, Verbindungen zu www.example.com herzustellen. Möchten Sie diese Aktion zulassen? [OK] [Abbrechen]

Wenn ich die Anfrage ablehne, bekomme ich diesen Trace auf der Konsole:

Uncaught error fetching image:
java.lang.SecurityException
    at java.lang.SecurityManager.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkConnect(Unknown Source)
    at com.sun.javaws.security.JavaWebStartSecurity.checkConnect(Unknown Source)
    at sun.awt.image.URLImageSource.checkSecurity(Unknown Source)
    at sun.awt.image.ImageRepresentation.imageComplete(Unknown Source)
    at sun.awt.image.InputStreamImageSource.errorConsumer(Unknown Source)
    at sun.awt.image.InputStreamImageSource.setDecoder(Unknown Source)
    at sun.awt.image.InputStreamImageSource.doFetch(Unknown Source)
    at sun.awt.image.ImageFetcher.fetchloop(Unknown Source)
    at sun.awt.image.ImageFetcher.run(Unknown Source)

Und hier ist der Thread-Dump, wenn die Erlaubnis angefordert wird:

"Image Fetcher 2" daemon prio=8 tid=0x04198000 nid=0xc24 in Object.wait() [0x0470e000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x1d67b050> (a java.lang.Object)
        at java.lang.Object.wait(Object.java:503)
        at com.sun.javaws.ui.JavawsSysRun.delegate(Unknown Source)
        - locked <0x1d67b050> (a java.lang.Object)
        at com.sun.deploy.util.DeploySysRun.execute(Unknown Source)
        at com.sun.deploy.util.DeploySysRun$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.deploy.util.DeploySysRun.executePrivileged(Unknown Source)
        at com.sun.deploy.ui.UIFactory.showApiDialog(Unknown Source)
        at com.sun.deploy.uitoolkit.impl.awt.ui.UIFactoryImpl.showMessageDialog(Unknown Source)
        at com.sun.deploy.uitoolkit.impl.awt.ui.UIFactoryImpl.showMessageDialog(Unknown Source)
        at com.sun.jnlp.ApiDialog.askUser(Unknown Source)
        at com.sun.jnlp.ApiDialog.askUser(Unknown Source)
        at com.sun.jnlp.ApiDialog.askConnect(Unknown Source)
        at com.sun.javaws.security.JavaWebStartSecurity.checkConnect(Unknown Source)
        at java.net.InetAddress.getAllByName0(Unknown Source)
        at java.net.InetAddress.getAllByName(Unknown Source)
        at java.net.InetAddress.getByName(Unknown Source)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.sun.deploy.cache.Cache.getCurrentIP(Unknown Source)
        at com.sun.deploy.cache.Cache.isCacheEntryIPValid(Unknown Source)
        at com.sun.deploy.cache.Cache.getCacheEntryFromIdxFiles(Unknown Source)
        at com.sun.deploy.cache.Cache.getCacheEntry(Unknown Source)
        at com.sun.deploy.cache.Cache.getCacheEntry(Unknown Source)
        at com.sun.deploy.cache.Cache.getCacheEntry(Unknown Source)
        at com.sun.deploy.net.DownloadEngine.isUpdateAvailable(Unknown Source)
        at com.sun.deploy.cache.DeployCacheHandler.get(Unknown Source)
        - locked <0x12fd06d0> (a java.lang.Object)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.followRedirect(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
        - locked <0x12fd0728> (a sun.net.www.protocol.http.HttpURLConnection)
        at com.sun.deploy.net.CrossDomainXML.check(Unknown Source)
        at com.sun.deploy.net.CrossDomainXML.check(Unknown Source)
        - locked <0x1d6fcf40> (a java.lang.Class for com.sun.deploy.net.CrossDomainXML)
        at com.sun.javaws.security.JavaWebStartSecurity.checkConnect(Unknown Source)
        at sun.net.www.http.HttpClient.openServer(Unknown Source)
        - locked <0x12fd09b8> (a sun.net.www.http.HttpClient)
        at sun.net.www.http.HttpClient.<init>(Unknown Source)
        at sun.net.www.http.HttpClient.New(Unknown Source)
        at sun.net.www.http.HttpClient.New(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
        - locked <0x12fd0a40> (a sun.net.www.protocol.http.HttpURLConnection)
        at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.dispatch(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.next(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
        at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
        at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source)
        at javax.xml.parsers.SAXParser.parse(Unknown Source)
        at com.sun.deploy.net.CrossDomainXML$2.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.deploy.net.CrossDomainXML.check(Unknown Source)
        at com.sun.deploy.net.CrossDomainXML.check(Unknown Source)
        - locked <0x1d6fcf40> (a java.lang.Class for com.sun.deploy.net.CrossDomainXML)
        at com.sun.javaws.security.JavaWebStartSecurity.checkConnect(Unknown Source)
        at sun.awt.image.URLImageSource.checkSecurity(Unknown Source)
        at sun.awt.image.InputStreamImageSource.setDecoder(Unknown Source)
        at sun.awt.image.InputStreamImageSource.doFetch(Unknown Source)
        at sun.awt.image.ImageFetcher.fetchloop(Unknown Source)
        at sun.awt.image.ImageFetcher.run(Unknown Source)

"AWT-EventQueue-0" prio=6 tid=0x0315f800 nid=0xc80 waiting on condition [0x037cf000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x1d6b46a8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(Unknown Source)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
        at java.awt.EventQueue.getNextEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

"javawsApplicationMain" prio=6 tid=0x040b4c00 nid=0x1198 in Object.wait() [0x0461f000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x1db95260> (a java.awt.MediaTracker)
        at java.awt.MediaTracker.waitForID(Unknown Source)
        - locked <0x1db95260> (a java.awt.MediaTracker)
        at javax.swing.ImageIcon.loadImage(Unknown Source)
        - locked <0x1db95260> (a java.awt.MediaTracker)
        at javax.swing.ImageIcon.<init>(Unknown Source)
        at javax.swing.ImageIcon.<init>(Unknown Source)
        at com.mycompany.myapp.j.c(Unknown Source)
        at com.mycompany.myapp.j.<init>(Unknown Source)
        at com.mycompany.myapp.MainClass.main(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.sun.javaws.Launcher.executeApplication(Unknown Source)
        at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
        at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
        at com.sun.javaws.Launcher.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

"CacheCleanUpThread" daemon prio=6 tid=0x03232800 nid=0x1048 waiting for monitor entry [0x0390f000]
   java.lang.Thread.State: BLOCKED (on object monitor)
        at com.sun.deploy.net.CrossDomainXML.quickCheck(Unknown Source)
        - waiting to lock <0x1d6fcf40> (a java.lang.Class for com.sun.deploy.net.CrossDomainXML)
        at com.sun.javaws.security.JavaWebStartSecurity.checkConnect(Unknown Source)
        at java.net.InetAddress.getAllByName0(Unknown Source)
        at java.net.InetAddress.getAllByName(Unknown Source)
        at java.net.InetAddress.getByName(Unknown Source)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.sun.deploy.cache.Cache.getCurrentIP(Unknown Source)
        at com.sun.deploy.cache.Cache.isCacheEntryIPValid(Unknown Source)
        at com.sun.deploy.cache.Cache.getCacheEntryFromFile(Unknown Source)
        at com.sun.deploy.cache.Cache.getCacheEntryFromFile(Unknown Source)
        at com.sun.deploy.cache.CleanupThread.getCurrentCacheSize(Unknown Source)
        at com.sun.deploy.cache.CleanupThread.run(Unknown Source)
        - locked <0x1d6b5518> (a java.lang.Object)

"Javaws Secure Thread" daemon prio=6 tid=0x03158c00 nid=0xb9c in Object.wait() [0x0377f000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x12fd1e58> (a java.awt.EventQueue$1AWTInvocationLock)
        at java.lang.Object.wait(Object.java:503)
        at java.awt.EventQueue.invokeAndWait(Unknown Source)
        - locked <0x12fd1e58> (a java.awt.EventQueue$1AWTInvocationLock)
        at javax.swing.SwingUtilities.invokeAndWait(Unknown Source)
        at com.sun.deploy.ui.DialogTemplate.setVisible(Unknown Source)
        at com.sun.deploy.ui.UIFactory$10.execute(Unknown Source)
        at com.sun.javaws.ui.JavawsSysRun$SecureThread.doWork(Unknown Source)
        at com.sun.javaws.ui.JavawsSysRun$SecureThread.run(Unknown Source)
        - locked <0x1d67b050> (a java.lang.Object)

Die Anwendung besteht aus einem Begrüßungsbildschirm, der Bilder von einer Website abruft. Dieser Bildschirm wird dann geschlossen und das Hauptfenster der Anwendung wird angezeigt. Die Warnung wird nur angezeigt, bevor der Begrüßungsbildschirm angezeigt wird. Nach dem Start der Anwendung wird trotz mehrerer von der Anwendung initiierter Verbindungen keine weitere Warnung angezeigt.

Was verursacht dieses Problem? Ist dies eine Regression in Java 7u5 oder eine neue Funktion? Ich habe keinen Hinweis darauf im Internet gesehenVersionshinweise.

Vielen Dank