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#19 NativeInterface.Open takes longer time to open and sometimes errors out with invalid class format error
We are suspecting read timout on Class loading ... Kindly suggest
Code referance below,
if(!NativeInterface.isOpen())
596 {
597 System.out.println("NativeInterface in communications is not open - trying to open");
598 NativeInterface.open();
599 System.out.println("NativeInterface in communications opened - successfully !!!");
600 }
601 else
602 System.out.println("NativeInterface is already open - reusing");
603
604 Map<string, string=""> optionMap = new HashMap<string, string="">();
605 optionMap.put("theme_advanced_buttons3", "''");
606 optionMap.put("readonly","1");
607 optionMap.put("visual","false");
608
609 htmlEditor = new JHTMLEditor(JHTMLEditor.HTMLEditorImplementation.TinyMCE, JHTMLEditor.TinyMCEOptions.setOptions(optionMap),JHTMLEditor.destroyOnFinalization());
610 m_contentPanel.add(htmlEditor, CONTENT_TEXT);</string,></string,>
Hi,
When the program starts, it detects which network interface works and can be used to communicate. Maybe you have an odd rule in your firewall or an antivirus with aggressive behavior, somehow slowing down or blocking data being exchanged by the components of the library.
If you want to get details of the address that is used, you could activate this system property and look in the console:
-Dnativeswing.localhostAddress.debug.printDetection=trueHope this helps,
-Christopher
Thanks a lot Christopher for your response ... I am getting the below error in the console logs, Also as I mentioned earlier its observed very rarely and if the flow is invoked as soon as the application is launched - but I could reproduce this with trial and error ...
JNLPClassLoader: Finding library jawt.dll
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at chrriis.dj.nativeswing.swtimpl.core.MessagingInterface.processCommandResult(MessagingInterface.java:342)
at chrriis.dj.nativeswing.swtimpl.core.MessagingInterface.syncSend(MessagingInterface.java:329)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface.syncSend_(SWTNativeInterface.java:392)
at chrriis.dj.nativeswing.swtimpl.NativeInterface.syncSend(NativeInterface.java:104)
at chrriis.dj.nativeswing.swtimpl.Message.syncSend(Message.java:64)
at chrriis.dj.nativeswing.swtimpl.CommandMessage.syncExec(CommandMessage.java:55)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeComponent.runSync(SWTNativeComponent.java:201)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeComponent.createNativePeer(SWTNativeComponent.java:1006)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeComponent.access$17(SWTNativeComponent.java:989)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeComponent$12.run(SWTNativeComponent.java:882)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(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)
Caused by: java.lang.reflect.InvocationTargetException
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 chrriis.dj.nativeswing.swtimpl.core.SWTNativeComponent$CMN_createControl.run(SWTNativeComponent.java:663)
at chrriis.dj.nativeswing.swtimpl.CommandMessage.runCommand(CommandMessage.java:61)
at chrriis.dj.nativeswing.swtimpl.NativeInterface.runMessageCommand(NativeInterface.java:172)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface.runMessageCommand(SWTNativeInterface.java:1429)
at chrriis.dj.nativeswing.swtimpl.core.MessagingInterface.runMessage(MessagingInterface.java:121)
at chrriis.dj.nativeswing.swtimpl.core.MessagingInterface.processReceivedMessages(MessagingInterface.java:106)
at chrriis.dj.nativeswing.swtimpl.core.MessagingInterface.access$2(MessagingInterface.java:94)
at chrriis.dj.nativeswing.swtimpl.core.MessagingInterface$2$2.run(MessagingInterface.java:442)
at org.eclipse.swt.widgets.RunnableLock.run(Unknown Source)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Unknown Source)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface$OutProcess.runNativeSide(SWTNativeInterface.java:1352)
at chrriis.dj.nativeswing.swtimpl.core.SWTNativeInterface.main_(SWTNativeInterface.java:1461)
at chrriis.dj.nativeswing.swtimpl.NativeInterface.main(NativeInterface.java:224)
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 chrriis.common.NetworkURLClassLoader.main(NetworkURLClassLoader.java:96)
Caused by: java.lang.ClassFormatError: Unknown constant tag 97 in class file org/eclipse/swt/browser/WebKit
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at chrriis.common.NetworkURLClassLoader.findClass(NetworkURLClassLoader.java:63)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.swt.browser.Browser.<init>(Unknown Source)
at chrriis.dj.nativeswing.swtimpl.components.core.NativeWebBrowser.createControl(NativeWebBrowser.java:431)
... 24 more</init>
Hi,
In some containers, the spawned JVM cannot reference the JAR files. For that reason, it uses a proxy class loader. I am not sure why under certain circumstances this is blocked... The extraction of that main proxy class failed to get extracted? An antivirus or firewall put some files in quarantine?
Cheers,
-Christopher