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From Andrew Willerding <awillerd...@itsurcom.com>
Subject Re: Can't instantiate class but it exists
Date Wed, 31 Jul 2013 14:49:18 GMT
I'm still having problems with this one Netbeans 7.3.1 project ( jdk 
1.7.0.17 with Tomcat 7.0.27) involving Vaadin and Cayenne.  I have now 
upgraded Cayenne to 3.1B2 and made all the project modifications I 
needed to in order to use Cayenne 3.1 (thanks Andrus!).  I'm hoping the 
error message is more meaningful to someone on this list.  I don't 
understand how the error message indicates it can't find the class 
PasswordReset and yet the code is being executed from within 
PasswordReset.  To me it looks like it can't load the class because of 
some security restriction but what is creating the security restriction?

Any help or guidance would be greatly appreciated.

Here is the offending code:

public class PasswordReset extends _PasswordReset {
     private static final long serialVersionUID = 5548297136969252200L;


     private static PasswordReset newPasswordReset(User user) {
         ObjectContext oc = MyApplication.getObjectContext();
         PasswordReset pr = null;
         String token = null;

System.out.println("oc=" + oc);

         pr = oc.newObject(PasswordReset.class);
         pr.setExpireDT(DateTime.now().plusMinutes(15).toDate());
         token = Password.getEncryptPW(user.getUsername() + 
DateTime.now().toString(), Password.generateNewSalt());
         pr.setToken(token);
         // pr.setUserId(user.getUser_id());
         user.setToPasswordReset(pr);
         oc.commitChanges();
         return pr;

     }
}

Here is the output


oc=org.apache.cayenne.access.DataContext@59d8afee

org.apache.cayenne.CayenneRuntimeException: [v.3.1B2 Feb 05 2013 
20:43:40] Error instantiating object.
     at 
org.apache.cayenne.access.DataContext.newObject(DataContext.java:554)
     at 
org.apache.cayenne.access.DataContext.newObject(DataContext.java:531)
     at 
com.callistacti.callwatch.database.PasswordReset.newPasswordReset(PasswordReset.java:76)
     at 
com.callistacti.callwatch.database.PasswordReset.getPasswordResetToken(PasswordReset.java:44)
     at 
com.callistacti.callwatch.Windows.WindowLogin$3.buttonClick(WindowLogin.java:174)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:601)
     at 
com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
     at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167)
     at 
com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:968)
     at com.vaadin.ui.Button.fireClick(Button.java:368)
     at com.vaadin.ui.Button$1.click(Button.java:57)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:601)
     at 
com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:168)
     at 
com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118)
     at 
com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:214)
     at 
com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:111)
     at 
com.vaadin.server.communication.PushHandler$2.run(PushHandler.java:158)
     at 
com.vaadin.server.communication.PushHandler.callWithUi(PushHandler.java:289)
     at 
com.vaadin.server.communication.PushHandler.onRequest(PushHandler.java:308)
     at 
org.atmosphere.cpr.AsynchronousProcessor.action(AsynchronousProcessor.java:259)
     at 
org.atmosphere.cpr.AsynchronousProcessor.suspended(AsynchronousProcessor.java:166)
     at 
org.atmosphere.container.TomcatWebSocketUtil.doService(TomcatWebSocketUtil.java:137)
     at 
org.atmosphere.container.Tomcat7AsyncSupportWithWebSocket.service(Tomcat7AsyncSupportWithWebSocket.java:59)
     at 
org.atmosphere.cpr.AtmosphereFramework.doCometSupport(AtmosphereFramework.java:1448)
     at 
org.atmosphere.websocket.DefaultWebSocketProcessor.dispatch(DefaultWebSocketProcessor.java:219)
     at 
org.atmosphere.websocket.DefaultWebSocketProcessor$2.run(DefaultWebSocketProcessor.java:183)
     at 
org.atmosphere.util.VoidExecutorService.execute(VoidExecutorService.java:101)
     at 
org.atmosphere.websocket.DefaultWebSocketProcessor.dispatch(DefaultWebSocketProcessor.java:178)
     at 
org.atmosphere.websocket.DefaultWebSocketProcessor.invokeWebSocketProtocol(DefaultWebSocketProcessor.java:167)
     at 
org.atmosphere.container.TomcatWebSocketHandler.onTextMessage(TomcatWebSocketHandler.java:92)
     at 
org.apache.catalina.websocket.MessageInbound.onTextData(MessageInbound.java:74)
     at 
org.apache.catalina.websocket.StreamInbound.onData(StreamInbound.java:129)
     at 
org.apache.coyote.http11.upgrade.UpgradeProcessor.upgradeDispatch(UpgradeProcessor.java:83)
     at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:563)
     at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
     at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
     at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
     at java.lang.Thread.run(Thread.java:722)
Caused by: org.apache.cayenne.CayenneRuntimeException: [v.3.1B2 Feb 05 
2013 20:43:40] Failed to load class 
com.callistacti.callwatch.database.PasswordReset: 
com.callistacti.callwatch.database.PasswordReset
     at org.apache.cayenne.map.ObjEntity.getJavaClass(ObjEntity.java:302)
     at 
org.apache.cayenne.reflect.PersistentDescriptorFactory.getDescriptor(PersistentDescriptorFactory.java:57)
     at 
org.apache.cayenne.reflect.ClassDescriptorMap.createDescriptor(ClassDescriptorMap.java:128)
     at 
org.apache.cayenne.reflect.LazyClassDescriptorDecorator.checkDescriptorInitialized(LazyClassDescriptorDecorator.java:58)
     at 
org.apache.cayenne.reflect.LazyClassDescriptorDecorator.createObject(LazyClassDescriptorDecorator.java:72)
     at 
org.apache.cayenne.access.DataContext.newObject(DataContext.java:551)
     ... 43 more
Caused by: java.lang.ClassNotFoundException: 
com.callistacti.callwatch.database.PasswordReset
     at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:266)
     at 
org.apache.cayenne.di.spi.DefaultAdhocObjectFactory.getJavaClass(DefaultAdhocObjectFactory.java:102)
     at org.apache.cayenne.util.Util.getJavaClass(Util.java:658)
     at org.apache.cayenne.map.ObjEntity.getJavaClass(ObjEntity.java:299)

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