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java.lang.NoClassDefFoundError: LEDU/oswego/cs/dl/util/concurrent/SynchronizedLong;	at java.lang.Class.getDeclaredFields0(Native Method)	at java.lang.Class.privateGetDeclaredFields(Class.java:2232)	at java.lang.Class.getDeclaredField(Class.java:1852)	at java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1555)	at java.io.ObjectStreamClass.access$600(ObjectStreamClass.java:47)	at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:381)	at java.security.AccessController.doPrivileged(Native Method)	at java.io.ObjectStreamClass.(ObjectStreamClass.java:373)	at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:268)	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:504)	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1546)	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.skipCustomData(ObjectInputStream.java:1877)	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1765)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1711)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.skipCustomData(ObjectInputStream.java:1877)	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1765)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1711)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.skipCustomData(ObjectInputStream.java:1877)	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1765)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1711)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.skipCustomData(ObjectInputStream.java:1877)	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1765)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1711)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.skipCustomData(ObjectInputStream.java:1877)	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1765)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1711)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)	at java.rmi.MarshalledObject.get(MarshalledObject.java:135)	at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:57)	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:637)	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:572)	at javax.naming.InitialContext.lookup(InitialContext.java:351)	at org.netbeans.modules.j2ee.jboss4.ide.JBStartServer.isReallyRunning(JBStartServer.java:146)	at org.netbeans.modules.j2ee.jboss4.ide.JBStartServer.isRunning(JBStartServer.java:187)	at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.isRunningWithinMillis(ServerInstance.java:336)	at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.isRunning(ServerInstance.java:329)	at org.netbeans.modules.j2ee.deployment.impl.ui.ServerStatusBar.setCommandControlButtons(ServerStatusBar.java:265)	at org.netbeans.modules.j2ee.deployment.impl.ui.ServerStatusBar.handleProgressEvent(ServerStatusBar.java:129)	at org.netbeans.modules.j2ee.jboss4.ide.JBStartServer.fireHandleProgressEvent(JBStartServer.java:467)	at org.netbeans.modules.j2ee.jboss4.ide.JBStartServer$JBStartRunnable.run(JBStartServer.java:293)	at org.openide.util.Task.run(Task.java:189)	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:330)	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:721)