I have one small problem with applet, I got following error.
Exception in thread "AWT-EventQueue-2" java.lang.ExceptionInInitializerError
at applet.JSGD_Register.jButtonInitActionPerformed(JSGD_Register.java:861)
at applet.JSGD_Register.access$1(JSGD_Register.java:841)
at applet.JSGD_Register$2.actionPerformed(JSGD_Register.java:195)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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.security.AccessControlException: access denied (java.lang.RuntimePermission loadLibrary.jnifplib)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkLink(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at SecuGen.FDxSDK.jni.JFPLib.<clinit>(JFPLib.java:68)
... 27 more
Why this occurs and how to resolve it?
First of all read this document - What Applets Can and Cannot Do? ** and decide what kind of code an applet allows. As #AndrewThompson pointed out (see comment) that signed applets do not have the security restrictions because they are digitally signed (signature) which proves that they came untampered from a particular trusted author.
For more information about signed applets check out :
Security in Rich Internet Applications
Understanding Signing and Verification
Related
I need your help.
I'm currently developing a java application that uses MySQL
(com.mysql.cj.jdbc.MysqlDataSource to be exact), and if I run it inside Intellij IDEA, everything works fine, but after exporting, I get an error message:
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: com/mysql/cj/jdbc/MysqlDataSource
at ger.mrSoUndso.Main$1.actionPerformed(Main.java:77)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$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.ClassNotFoundException: com.mysql.cj.jdbc.MysqlDataSource
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 37 more
How can i fix this error?
Thanks in advance.
Mr_SoUndso
PS: I know a similar question was asked before, but without stack trace. There also was no answer given.
A friend showed me how to fix it:
You need to make your library available in your jar.
Then everything is working fine
Assuming you are exporting the app as a jar file, you need to provide the path of that driver jar while running the app, e.g.:
java -cp '<path_to_driver_jar>' yourApp.jar
This would make sure the library is available to your app and it will work fine.
I am experimenting on how to use a web service in a java application. Here are the things I did:
I created a web service from a class in a dynamic web project.( Using CXF )
I used my eclipse to generate client classes for this web service from another dynamic web project.
I copied all these automatically generated classes into my java project.
I now have a class that calls all these classes. But I am getting an exception:
Exception in thread "AWT-EventQueue-0"
com.sun.xml.internal.ws.client.ClientTransportException: The server
sent HTTP status code 404: Not Found at
com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.checkStatusCode(Unknown
Source) at
com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.process(Unknown
Source) at
com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.processRequest(Unknown
Source) at
com.sun.xml.internal.ws.transport.DeferredTransportPipe.processRequest(Unknown
Source) at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Unknown
Source) at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Unknown
Source) at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Unknown
Source) at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Unknown
Source) at com.sun.xml.internal.ws.client.Stub.process(Unknown Source)
at com.sun.xml.internal.ws.client.sei.SEIStub.doProcess(Unknown
Source) at
com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(Unknown
Source) at
com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(Unknown
Source) at com.sun.xml.internal.ws.client.sei.SEIStub.invoke(Unknown
Source) at $Proxy30.getUserInformation(Unknown Source) at
servicepackage.UserLogin$2.actionPerformed(UserLogin.java:91) at
javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at
javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at
javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at
javax.swing.DefaultButtonModel.setPressed(Unknown Source) at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown
Source) at java.awt.Component.processMouseEvent(Unknown Source) at
javax.swing.JComponent.processMouseEvent(Unknown Source) at
java.awt.Component.processEvent(Unknown Source) at
java.awt.Container.processEvent(Unknown Source) at
java.awt.Component.dispatchEventImpl(Unknown Source) at
java.awt.Container.dispatchEventImpl(Unknown Source) at
java.awt.Component.dispatchEvent(Unknown Source) at
java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at
java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at
java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at
java.awt.Container.dispatchEventImpl(Unknown Source) at
java.awt.Window.dispatchEventImpl(Unknown Source) at
java.awt.Component.dispatchEvent(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)
What are the usual reasons for this exception ? Can someone help. Thanks in advance.
I have a java applet and i add it in a html file. My java applet include the jess library and i batch a file which has my rules in jess. When i run my project from Netbeans IDE everything it's perfect and work properly. But when i copy my folder inside the www directory of wampserver to run my html, Java Console gives me the following errors :
Jess reported an error in routine import
while executing (import java.lang.Boolean).
Message: Error during execution.
Program text: ( import java.lang.Boolean ) at line 91 in file scriptlib.clp.
at jess.Funcall.execute(Unknown Source)
at jess.Jesp.a(Unknown Source)
at jess.Jesp.parseExpression(Unknown Source)
at jess.Jesp.promptAndParseOneExpression(Unknown Source)
at jess.Jesp.parse(Unknown Source)
at jess.Batch.batch(Unknown Source)
at jess.Batch.batch(Unknown Source)
at jess.Batch.batch(Unknown Source)
at jess.Batch.batch(Unknown Source)
at jess.Rete.batch(Unknown Source)
at jess.Rete.long(Unknown Source)
at jess.Rete.<init>(Unknown Source)
at jess.Rete.<init>(Unknown Source)
at EsperinosDaily.<init>(EsperinosDaily.java:156)
at ChooseFollowing$2.actionPerformed(ChooseFollowing.java:89)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(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$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.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.security.AccessControlException: access denied ("java.lang.reflect.ReflectPermission" "suppressAccessChecks")
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at sun.plugin2.applet.AWTAppletSecurityManager.checkPermission(Unknown Source)
at java.lang.reflect.AccessibleObject.setAccessible(Unknown Source)
at jess.be.<init>(Unknown Source)
at jess.aq.<init>(Unknown Source)
at jess.an.a(Unknown Source)
at jess.an.a(Unknown Source)
at jess.dc.new(Unknown Source)
at jess.Rete.importClass(Unknown Source)
at jess.dh.call(Unknown Source)
at jess.ac.a(Unknown Source)
... 51 more
Exception in thread "AWT-EventQueue-2" java.security.AccessControlException: access denied ("java.io.FilePermission" "metabliti.clp" "write")
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at sun.plugin2.applet.AWTAppletSecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkWrite(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileWriter.<init>(Unknown Source)
at EsperinosDaily.<init>(EsperinosDaily.java:164)
at ChooseFollowing$2.actionPerformed(ChooseFollowing.java:89)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(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$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.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)
The AccessControlException suggests this code needs to be run in a trusted environment. To do that, it will need to be digitally signed.
Note that writing files on the client machine is not something often done by an applet. Perhaps you are going about using the API incorrectly, though I don't know of it, so can't say for sure.
I always get an error of my Auto Completing JComboBox.
To auto complete my jcombobox i used this script of http://w_w.orbital-computer.de/JComboBox/.
When I create them i do it like this:
final Object[] elements = new Object[] {"Please refresh your list"};
comboBox[i] = new JComboBox(elements);
comboBox[i].setEditable(true);
new AutoCompleteJComboBox(comboBox[i]);
It works fine if i just use it with new jcomboboxes, but if i change their values like this:
comboBox[i].removeAllItems();
comboBox[i].setModel(new JComboBox<>(ListWithNames).getModel());
comboBox[i].setEditable(true);
new AutoCompleteJComboBox(comboBox[i]);
I get the following error message:
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: bad position: 11
at javax.swing.text.JTextComponent.setCaretPosition(Unknown Source)
at src.AutoCompleteJComboBox.highlightCompletedText(AutoCompleteJComboBox.java:146)
at src.AutoCompleteJComboBox.access(AutoCompleteJComboBox.java:145)
at src.AutoCompleteJComboBoxactionPerformed(AutoCompleteJComboBox.java:30)
at javax.swing.JComboBox.fireActionEvent(Unknown Source)
at javax.swing.JComboBox.setSelectedItem(Unknown Source)
at javax.swing.JComboBox.setSelectedIndex(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup$Handler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopupprocessMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access(Unknown Source)
at java.awt.EventQueuerun(Unknown Source)
at java.awt.EventQueuerun(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomaindoIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomaindoIntersectionPrivilege(Unknown Source)
at java.awt.EventQueuerun(Unknown Source)
at java.awt.EventQueuerun(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomaindoIntersectionPrivilege(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)
this position 11 is the length of the first value in the ListWithNames, additionally the first item in the list still works fin but by the other items is just the first letter of the text highlighted and than the error appears.
AutoCompleteJComboBox.java is this file with another name in line 146 is
editor.setCaretPosition(this.getLength());
I hope someone can help me with this.
(sorry for that link at the top, but im not allowed to post more than two)
This applet runs fine in eclipse viewer. I cannot run it from any browser. How can I resolve this issue? I get this error from my java applet console:
Exception in thread "AWT-EventQueue-2" java.security.AccessControlException: access denied (java.awt.AWTPermission watchMousePointer)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.awt.MouseInfo.getPointerInfo(Unknown Source)
at nopulse.update(nopulse.java:448)
at nopulse.paint(nopulse.java:316)
at sun.awt.RepaintArea.paintComponent(Unknown Source)
at sun.awt.RepaintArea.paint(Unknown Source)
at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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)
Applets running in a browser use a Security Manager. There are many things that applets in a browser are not allowed to do. If you insist that your applets do these things, deploy your applet as a signed applet
Edit your policy files accordingly. See this on how to do it.