I am coding a Java chess gui. It runs fine as an applet from Eclipse but I am struggling to get it to work on my local machine from an HTML page. I am using images which I include in the JAR. Images are accessed properly with an Eclipse Debug. What am I missing :( ?
The HTML looks like :
<html>
<applet code="Ginsie"
height="300px" width="300px" archive="chess.jar">
</applet>
</html>
The output of the Java Console (open from the browser) :
java.lang.RuntimeException: java.lang.ExceptionInInitializerError
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ExceptionInInitializerError
at BoardPanel.loadSquares(BoardPanel.java:105)
at BoardPanel.<init>(BoardPanel.java:34)
at Ginsie.<init>(Ginsie.java:60)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$12.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$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.io.FilePermission ..\img\squares\Wood\BSQUARE.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.canRead(Unknown Source)
at javax.imageio.ImageIO.read(Unknown Source)
at Square.<clinit>(Square.java:47)
... 24 more
Exception : java.lang.RuntimeException: java.lang.ExceptionInInitializerError
Judging from the stack trace, it looks as if you are calling javax.imageio.ImageIO.read(File). In Eclipse, it likely works because it is accessing the local filesystem to read the image. Try using Class.getResourceAsStream() to read the file off the classpath (i.e. from the jar) and then pass the InputStream to javax.imageio.ImageIO.read(InputStream).
Related
I am trying to run my applet with JDK8 but i'm getting below exception on java console at this line of my code
SplitPaneH = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
Traces
Exception in thread "AWT-EventQueue-2" java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "accessClassInPackage.sun.swing")
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.checkPackageAccess(Unknown Source)
at sun.plugin2.applet.SecurityManagerHelper.checkPackageAccessHelper(Unknown Source)
at sun.plugin2.applet.AWTAppletSecurityManager.checkPackageAccess(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.jb2011.lnf.beautyeye.ch17_split.BESplitPaneDivider.<init>(BESplitPaneDivider.java:77)
at org.jb2011.lnf.beautyeye.ch17_split.BESplitPaneUI.createDefaultDivider(BESplitPaneUI.java:54)
at javax.swing.plaf.basic.BasicSplitPaneUI.installDefaults(Unknown Source)
at javax.swing.plaf.basic.BasicSplitPaneUI.installUI(Unknown Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.JSplitPane.setUI(Unknown Source)
at javax.swing.JSplitPane.updateUI(Unknown Source)
at javax.swing.JSplitPane.<init>(Unknown Source)
at javax.swing.JSplitPane.<init>(Unknown Source)
at javax.swing.JSplitPane.<init>(Unknown Source)
at TeleProvisionManager.InventoryPage.<init>(InventoryPage.java:382)
at TeleProvisionManager.MainFrame.createMainTab(MainFrame.java:2147)
at TeleProvisionManager.MainFrame.<init>(MainFrame.java:1253)
at TeleProvisionManager.LoginChangeGroupDlg.handleContinueButton(LoginChangeGroupDlg.java:791)
at TeleProvisionManager.LoginChangeGroupDlg.jbtnContinueActionPerformed(LoginChangeGroupDlg.java:489)
at TeleProvisionManager.LoginChangeGroupDlg.access$100(LoginChangeGroupDlg.java:56)
at TeleProvisionManager.LoginChangeGroupDlg$4.actionPerformed(LoginChangeGroupDlg.java:355)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicRootPaneUI$Actions.actionPerformed(Unknown Source)
at javax.swing.SwingUtilities.notifyAction(Unknown Source)
at javax.swing.JComponent.processKeyBinding(Unknown Source)
at javax.swing.KeyboardManager.fireBinding(Unknown Source)
at javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source)
at javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source)
at javax.swing.SwingUtilities.processKeyBindings(Unknown Source)
at javax.swing.UIManager$2.postProcessKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(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.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$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)
But it was worked well with JDK7. I am not getting what is the problem and how to solve it. And i tried downloading 'jsdg-stubs-jre1.5.jar' which contains sun.swing classes and copying that jar to WEB-INF/lib folder but no use. How to solve it please help me. TIA!
"accessClassInPackage.sun.swing" which signifies that in Webstart it is not allowed to use the package sun.swing.
You need to sign your applet, and with latest jdk 8 security, will block any applet signed with an untrusted certificate authority.So if you self sign this applet put low the security settings.untill it executes.
As an example here.
The thing with java 8 is that we have the security level ranging from high to very high ,while on java 7 it ranged from medium and above.The setting was only intended to block malicious or unsigned apps in java 8.However sometimes it may cause trouble with active X controls.If your app is running using low setting ,good otherwise i suggest java7, unless you dont use enhanced features like lambda expressions and other stuff
Between java7 and java8 there were a bunch of security restrictions added to the way applets are constrained in sandbox mode - especially in communicating over the network.
Check if anything here applies to your case - it may not be applicable, but these need to be checked anyway.
I'm trying to load an applet in a html and it always throws ClassNotFoundException com.sun.media.jai.codec.ImageDecodeParam. This applet runs fine as standalone application.
I tried adding the dependencies jai_codec.jar and Jai_core.jar in WEB-INF/lib and even along with the ImageViewer.jar. But its not at all recognizing.
The applet code is
<body>
<APPLET code="ImageFrame.class" name="ImageFrame" codebase="viewer" archive="ImageViewer.jar"
width=300 height=300>
</APPLET>
<form name="taskForm" method="post" style="font: sans-serif"><br>
The Error logs
java.lang.reflect.InvocationTargetException
at java.awt.EventQueue.invokeAndWait(Unknown Source)
at java.awt.EventQueue.invokeAndWait(Unknown Source)
at javax.swing.SwingUtilities.invokeAndWait(Unknown Source)
at ImageFrame.init(ImageFrame.java:88)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: com/sun/media/jai/codec/ImageDecodeParam
at ImageFrame.imageZoom(ImageFrame.java:118)
at ImageFrame$1.run(ImageFrame.java:93)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$400(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.sun.media.jai.codec.ImageDecodeParam
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 16 more
I know very little about Java but I'm attempting to run this applet from here:
http://www.jhlabs.com/java/maps/proj/ only run it locally. So i just changed the page source to this:
<applet archive="dist/javaproj-1.0.6.jar" code="Proj.class" width="690" height="600">
</p>
But then i get this error from any browser:
ava.lang.reflect.InvocationTargetException
at com.sun.deploy.util.DeployAWTUtil.invokeAndWait(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.runOnEDT(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassCastException: Proj cannot be cast to java.applet.Applet
at sun.plugin2.applet.Plugin2Manager$12.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$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)
Exception: java.lang.reflect.InvocationTargetException
Any ideas what i am missing here?
thanks.
Make sure your Proj class extends the Applet class.
Are you sure this is an applet and not a full application?
I'm trying to debug an applet that occasionally fails with the stack trace below (on the Java Console).
It looks like it's trying to load binaries and it's getting an HTTP REDIRECT which isn't legal (perhaps because of the applet sandbox?).
Is there any way to turn on verbose class loading output (or other debugging that might be useful) on the Java Console? If this were a standard Java application (as opposed to an applet), I would put "-verbose:class" on the command line and see what I get - but I don't know how to do that with an applet.
I don't have access to the source for the applet - so I can't add any kind of instrumentation to the code itself.
java.lang.SecurityException: illegal URL redirect
at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequestEX(Unknown Source)
at com.sun.deploy.net.DownloadEngine.isUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.DeployCacheHandler.get(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)
at sun.plugin.PluginURLJarFileCallBack.downloadJAR(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.access$000(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin.PluginURLJarFileCallBack.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source)
at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.connect(Unknown
Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFileInternal(Unknown
Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFile(Unknown
Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(Unknown
Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$800(Unknown
Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(Unknown
Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(Unknown
Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.(Unknown
Source)
at com.sun.deploy.security.DeployURLClassPath$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown
Source)
at java.lang.Thread.run(Unknown Source) Exception: java.lang.SecurityException: illegal URL redirect
You can add the -verbose:class to the command line of java by going to Control Panel, Java, Java, View, then editing the 'runtime parameters'.
To make your applet get sources NOT FROM its native host you have to sign it;
Here are some helpful tutorials
Report that helps
I have written an applet program. It has some references to classes from java tools.jar in it (eg:- import com.sun.jdi.connect.IllegalConnectorArgumentsException)
When I run this applet through appletviewer utility it works fine. But when I embed this applet in HTML file and try to run it through web browser, I am getting exception about some classes not found at runtime:-
Java Plug-in 1.6.0_18
Using JRE version 1.6.0_18-b07 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\Pras
java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/sun/jdi/connect/IllegalConnectorArgumentsException
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: com/sun/jdi/connect/IllegalConnectorArgumentsException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$12.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)
Caused by: java.lang.ClassNotFoundException: com.sun.jdi.connect.IllegalConnectorArgumentsException
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 14 more
Caused by: java.io.FileNotFoundException: C:\pal\WTP_Workspace\JavaSocketBridge\bin\com\sun\jdi\connect\IllegalConnectorArgumentsException.class (The system cannot find the path specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.(Unknown Source)
at java.io.FileInputStream.(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 17 more
Exception: java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/sun/jdi/connect/IllegalConnectorArgumentsException
However the IllegalConnectorArgumentsException class is part of java runtime located inside tools.jar.
How I can get run it inside browser as well?
many thanks in advance.
Regards,
Pras
You are running your applet from the JRE. The class IllegalConnectorArgumentsException can only be access from the JDK since it's related to debugging.
Refer to this question.