I have a signed applet that is supposed to allow a user to search through their file system via JFileChooser, collect selected files and then transfer a copy of those selected files via HTTP to a server. Currently, the applet allows the user to search and select files but when I try to transfer a copy of the files it throws an error:
java.security.AccessControlException access denied
(java.io.FilePermission C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Blue hills.jpg read)>
I've searched online but everything I've found so far suggests to "sign" the applet - but I've already signed the applet, so that is not the solution to my problem.
Anyone know what the cause of the problem is and what the solution is? When I run the code as an app everything works - searching, collecting selected files, and transferring copy of files.
Below is the exception stack trace:
>
Exception in thread "AWT-EventQueue-2" java.lang.InternalError: couldn't create component peer
at sun.awt.windows.WComponentPeer.checkCreation(Unknown Source)
at sun.awt.windows.WComponentPeer.<init>(Unknown Source)
at sun.awt.windows.WCanvasPeer.<init>(Unknown Source)
at sun.awt.windows.WPanelPeer.<init>(Unknown Source)
at sun.awt.windows.WWindowPeer.<init>(Unknown Source)
at sun.awt.windows.WFramePeer.<init>(Unknown Source)
at sun.awt.windows.WEmbeddedFramePeer.<init>(Unknown Source)
at sun.awt.windows.WToolkit.createEmbeddedFrame(Unknown Source)
at sun.awt.windows.WEmbeddedFrame.addNotify(Unknown Source)
at sun.plugin2.main.client.PluginEmbeddedFrame.addNotify(Unknown Source)
at sun.awt.windows.WEmbeddedFrame.<init>(Unknown Source)
at sun.plugin2.main.client.PluginEmbeddedFrame.<init>(Unknown Source)
at sun.plugin2.main.client.PluginMain$StartAppletRunner.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
java.security.AccessControlException: access denied (java.io.FilePermission C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Blue hills.jpg read)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at java.io.File.isFile(Unknown Source)
at sun.awt.shell.ShellFolder.isFile(Unknown Source)
at org.apache.commons.httpclient.methods.multipart.FilePartSource.<init>(FilePartSource.java:68)
at org.apache.commons.httpclient.methods.multipart.FilePart.<init>(FilePart.java:127)
at projects.web.FilesUploader.postFiles(FilesUploader.java:35)
at projects.web.AppletGUI$ButtonHandler.actionPerformed(AppletGUI.java:170)
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)