Java WebStart and JacORB!

Question

Hi All,
When running the application from command line using -Xbootclasspath
works fine, but when started from webstart, I am getting method not found exception. I was able to initialize the ORB properly(used ORBClass, and ORBSingleton options). Basically this is happening because of loading Sun's ORB instead of JacORB. Looked at this forum and applied setContextLoader() tip, but it didn't help.
I am using Java Web Start 1.4.2_02, and 1.4.2 Java.
Any Help is appreciated.
Thanks,
Sanjay.
Here is the exception:
Error! Caught an exception. java.lang.NoSuchMethodError: org.omg.PortableServer.CurrentOperations.get_servant()Lorg/omg/PortableServer/Servant;
java.lang.NoSuchMethodError: org.omg.PortableServer.CurrentOperations.get_servant()Lorg/omg/PortableServer/Servant;
     at org.jacorb.orb.ServantDelegate.poa(ServantDelegate.java:114)
     at org.jacorb.orb.ServantDelegate.this_object(ServantDelegate.java:69)
     at org.omg.PortableServer.Servant._this_object(Unknown Source)
     at org.omg.CosNotifyComm.StructuredPushConsumerPOA._this(StructuredPushConsumerPOA.java:23)
     at EventConsumer.Connect(EventConsumer.java:156)
     at WLANMgr.Main(WLANMgr.java:754)
     at WLANMgr.main(WLANMgr.java:832)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at com.sun.javaws.Launcher.executeApplication(Unknown Source)
     at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
     at com.sun.javaws.Launcher.continueLaunch(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
[jacorb] DEBUG : ERROR: NoSuchMethodError - re-run specifying jacorb.jar with -Xbootclasspath/p: option to avoid use of (incorrect) SDK implementation class.
Cannot create Event Channel, Exiting ...

Answer 1

Hi,
I am using jacorb with NO problems.
I load a signed jacorb.jar as an extension:
<jar href="lib/jacorb.jar" />
Then,
before calling orb.init, y load jacorb.properties as a resource from another .jar, and put it in a Properties object.
Properties prop = new Properties();
InputStream bis= null;
try {
bis = getFileJar(fileNamePropertiesJacorb);
prop.load(bis);
for (Enumeration e = prop.keys(); e.hasMoreElements(); ) {
     Object key = e.nextElement();
     String valor = prop.getProperty(key.toString());
     prop.put(key.toString(), valor);
Then, I initialize the ORB:
orb = org.omg.CORBA.ORB.init(args, prop);
Make sure these properties exists in your jacorb.properties file:
org.omg.CORBA.ORBClass=org.jacorb.orb.ORB and
org.omg.CORBA.ORBSingletonClass=org.jacorb.orb.ORBSingleton
Hope this helps.
Any doubt, ask me.