My applet works in Eclipse when I run it with "Run As -> Java Applet", but when I try to launch it with a JNLP file, I get a NoClassDefFoundError. Im trying to use the javax.websocket-api inside my application, which uses the tyrus implementation.
Java code:
import javax.websocket.DeploymentException;
import org.glassfish.tyrus.server.Server;
public class MyApplet extends Applet {
Server server = new Server("localhost", 8025, "/root/", MyApplet.class);
try {
server.start();
}
catch (DeploymentException e) {
e.printStackTrace();
}
}
Error message:
java.lang.RuntimeException: java.lang.NoClassDefFoundError: javax/websocket/DeploymentException
at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter.instantiateApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: javax/websocket/DeploymentException
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.newInstance(Unknown Source)
at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter$1.run(Unknown Source)
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.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: javax.websocket.DeploymentException
at sun.plugin2.applet.Plugin2ClassLoader$2.run(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.JNLP2ClassLoader.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)
... 24 more
Jnlp file:
<%@ page contentType="application/x-java-jnlp-file"%>
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.5" codebase="http://localhost:7001/root">
<information>
<title>title</title>
<vendor>vendor</vendor>
</information>
<security>
<all-permissions/>
</security>
<resources>
<java version="1.7*"/>
<jar href="my_applet.jar" main="true"/>
<jar href="tyrus-websocket-core-1.1.jar"/>
<jar href="activation-1.1.jar"/>
<jar href="tyrus-container-grizzly-1.2.1.jar"/>
<jar href="tyrus-core-1.1.jar"/>
<jar href="tyrus-server-1.1.jar"/>
<jar href="tyrus-spi-1.2.1.jar"/>
<jar href="grizzly-framework-2.3.3.jar"/>
<jar href="grizzly-http-2.3.3.jar"/>
<jar href="grizzly-http-server-2.3.3.jar"/>
<jar href="grizzly-rcm-2.3.3.jar"/>
<jar href="javaee-api-7.0.jar"/>
<jar href="javax.mail-1.5.0.jar"/>
<jar href="jnlp-api-7.0.jar"/>
<jar href="javax.websocket-api-1.0.jar"/>
</resources>
<applet-desc main-class="myPackage.MyApplet" name="name" width="100" height="10">
</applet-desc>
The jars given in the jnlp-file are exactly the same as in the Java Build Path specified in eclipse. The jar files are deployed on the server, I can access them with my web browser.
My idea would be that it has something to do with the websockets-api, which fails to load the tyrus implementation at runtime, but I have no idea how to fix it.
