ClassNotFoundException on utility class in JTA Transaction

Question

When using user defined transactions, I am finding I get odd
          ClassNotFoundExceptions. I've tested this primarily on NT/2000, but did
          also confirm it on Solaris. Can anyone explain it?
          The exception only seems to occur if it becomes necessary to throw an
          exception from the EJB. If I am not inside a user defined transaction,
          there are no problems. (Even if the method is marked as Transacation
          Required). Similarly, if no exception is thrown, there is also no problem
          (even though I use plenty of other utility classes)
          The classes (including the utility class) are all in my deployed jar file
          (which is deployed as part of an ear file).
          The error message is below:
          java.lang.ClassNotFoundException:
          com.iknowledge.inext.exception.STInvalidNameException
          at
          weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.
          java:178)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
          at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
          at java.lang.Class.forName0(Native Method)
          at java.lang.Class.forName(Class.java:195)
          at
          weblogic.j2ee.ApplicationManager.loadFromNetwork(ApplicationManager.java:248
          at
          weblogic.j2ee.ApplicationManager.loadClass(ApplicationManager.java:175)
          at
          weblogic.rjvm.MsgAbbrevInputStream.readClassDescriptor(MsgAbbrevInputStream.
          java:211)
          at
          weblogic.common.internal.ChunkedObjectInputStream$NestedObjectInputStream.re
          adClassDescriptor(ChunkedObjectInputStream.java:290)
          at
          java.io.ObjectInputStream.inputClassDescriptor(ObjectInputStream.java:906)
          at java.io.ObjectInputStream.readObject(ObjectInputStream.java:366)
          at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
          at
          java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1186)
          at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)
          at
          java.io.ObjectInputStream.inputClassFields(ObjectInputStream.java:2263)
          at
          java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:519)
          at
          java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1412)
          at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)
          at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
          at
          weblogic.common.internal.ChunkedObjectInputStream.readObject(ChunkedObjectIn
          putStream.java:107)
          at
          weblogic.transaction.internal.PropagationContext.readExternal(PropagationCon
          text.java:304)
          at
          weblogic.common.internal.ChunkedObjectInputStream.readObject(ChunkedObjectIn
          putStream.java:97)
          at
          weblogic.common.internal.ChunkedObjectInputStream.readObjectWL(ChunkedObject
          InputStream.java:123)
          at
          weblogic.rjvm.MsgAbbrevInputStream.readTxContext(MsgAbbrevInputStream.java:1
          66)
          at
          weblogic.rjvm.MsgAbbrevInputStream.readMessageContext(MsgAbbrevInputStream.j
          ava:156)
          at
          weblogic.rjvm.ConnectionManager.dispatch(ConnectionManager.java:581)
          at
          weblogic.rjvm.t3.T3JVMConnection.dispatch(T3JVMConnection.java:454)
          at
          weblogic.socket.NTSocketMuxer.processSockets(NTSocketMuxer.java:638)
          at
          weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:24)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          

Answer 1

You closed your Main class with a bracket, so your getConnection() method isn't in a class
public class Main {
    /** Creates a new instance of Main */
    public Main() {
    public static void main(String[] args) {
        Connection con = getConnection();
        System.out.println("The connection is: " +con );
}That is your entire Main class. Anything below it isn't in the class.