CORBA naming service??

["doug in mis.ncu.edu.tw" <do...@gate.sinica.edu.tw>]

Hello
I'm new to Xindice.
I use redhat 7.3 and JDK1.4.0
After I download Xindice from apach web site , I read INSTALL and start
to run Xindice.
But the error message occur :

DEBUG> APIService: java.lang.NullPointerException
DEBUG>
java.lang.NullPointerException
at
org.omg.CONV_FRAME.CodeSetComponentInfoHelper.write(CodeSetComponentInfoHelper.java:124)
at
org.omg.CONV_FRAME.CodeSetComponentInfoHolder._write(CodeSetComponentInfoHolder.java:46)
at org.openorb.CORBA.Any.write_value(Any.java:332)
at org.openorb.iiop.CDRCodec.encode_value(CDRCodec.java:151)
at
org.openorb.iiop.IIOPProtocolInitializer.init(IIOPProtocolInitializer.java:123)
at org.openorb.PI.OpenORBInitInfo.post_init(OpenORBInitInfo.java:166)
at org.openorb.CORBA.kernel.OpenORBLoader.init(OpenORBLoader.java:152)
at org.openorb.CORBA.ORB.set_parameters(ORB.java:646)
at org.omg.CORBA.ORB.init(ORB.java:346)
at org.apache.xindice.server.services.APIService.start(APIService.java:187)
at
org.apache.xindice.server.standard.StdServiceManager.startServices(StdServiceManager.java:131)
at org.apache.xindice.server.Kernel.startServices(Kernel.java:464)
at org.apache.xindice.server.Kernel.<init>(Kernel.java:158)
at org.apache.xindice.server.Kernel.<init>(Kernel.java:117)
at org.apache.xindice.server.Xindice.main(Xindice.java:99)
DEBUG> Most likely your CORBA naming service couldn't be reached.
Service: 'APIService' started

Server Running



The lastline is "Server Running" , so that I ignore those DEBUG message.
But when I try to build a sample , another error happened: ERROR : A
connection to the Database instance 'db' could not be created. Error:
http://localhost:4080/db_bootstrap.ior
Why XINDICE needs CORBA naming serivce ?
I have read FAQ in the web ,though I find jacorb.jar but I still have those error??
Could anyone help me?? thanks~~