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Hi Curtis,I ran the SpreadSheet with the "-debug" command line flag and I got the message below. As you can see, the problem was in the Stub files. Actually, when I run "make debug" or "make compile", the Stub files aren't correctly generated and don't know why (maybe the problem is the rmic). Anyway, using the JBuilder I've got well-generated Stub files and now my SpreadSheet is running fine.
I appreciate your help. Thanks, Lourena. --------------java.rmi.StubNotFoundException: Stub class not found: visad.RemoteDataImpl_Stub; nested exception is:
java.lang.ClassNotFoundException: visad.RemoteDataImpl_Stub
at sun.rmi.server.RemoteProxy.getStub(RemoteProxy.java:98)
at sun.rmi.server.RemoteProxy.getStub(RemoteProxy.java:55)
at
sun.rmi.server.UnicastServerRef.setSkeleton(UnicastServerRef.java:179)
at
sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:142)
at
sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:129)
at
java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:275)
at
java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:178)
at
java.rmi.server.UnicastRemoteObject.<init>(UnicastRemoteObject.java:75)
at
java.rmi.server.UnicastRemoteObject.<init>(UnicastRemoteObject.java:61)
at visad.RemoteThingImpl.<init>(RemoteThingImpl.java:52)
at visad.RemoteDataImpl.<init>(RemoteDataImpl.java:53)
at visad.ss.BasicSSCell.sendMessage(BasicSSCell.java:523)
at visad.ss.BasicSSCell.setDimension(BasicSSCell.java:1854)
at visad.ss.BasicSSCell.setupServer(BasicSSCell.java:731)
at visad.ss.BasicSSCell.<init>(BasicSSCell.java:268)
at visad.ss.FancySSCell.<init>(FancySSCell.java:243)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at visad.ss.SpreadSheet.createCell(SpreadSheet.java:3815)
at
visad.ss.SpreadSheet.constructSpreadsheetCells(SpreadSheet.java:2879)
at
visad.ss.SpreadSheet.constructSpreadsheetCells(SpreadSheet.java:2865)
at visad.ss.SpreadSheet.<init>(SpreadSheet.java:1175)
at visad.ss.SpreadSheet.main(SpreadSheet.java:530)
Caused by: java.lang.ClassNotFoundException: visad.RemoteDataImpl_Stub
at java.net.URLClassLoader$1.run(URLClassLoader.java:198)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at
sun.rmi.server.RemoteProxy.loadClassFromClass(RemoteProxy.java:191)
at sun.rmi.server.RemoteProxy.getStub(RemoteProxy.java:93)
... 24 more
Cell constructor failed to produce a FancySSCell object!
Exception in thread "main" java.lang.NullPointerException
at
visad.ss.SpreadSheet.constructSpreadsheetCells(SpreadSheet.java:2880)
at
visad.ss.SpreadSheet.constructSpreadsheetCells(SpreadSheet.java:2865)
at visad.ss.SpreadSheet.<init>(SpreadSheet.java:1175)
at visad.ss.SpreadSheet.main(SpreadSheet.java:530)
Curtis Rueden wrote:
Hi again Lourena, There is one other thing that would be extremely helpful in diagnosing this problem. Please run the SpreadSheet with the "-debug" command line flag. Before receiving the NullPointerException, you should some other output indicating what went wrong in constructing the FancySSCell objects. If you could send any such output to me, I would appeciate it. Thanks, Curtis
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