When trying to connect to an RMI Service from within a Java
Servlet running on a Cold Fusion 8 server, our application is
throwing an exception. The code is unchanged from what ran
successfully on Cold Fusion 7. The interface that defines the RMI
Service is:
public interface Request extends Remote, FsbConstants {
public Response handle(Datatable data) throws
RemoteException;
}
the method where the RMI Call is being made and the problem
is occuring is:
private Response getRequest(String service, Datatable data)
{
try { return ((Request)Naming.lookup(service)).handle(data);
}
catch (Exception excp) {
excp.printStackTrace();
return (new Response(Response.PAGE_NO_RMI_ERROR, data));
}
}
and the RMI method that is being called is:
public Response handle(Datatable data) throws
RemoteException {
Processor processor = null;
Response result = null;
String action = null;
String page = null;
String sid = null;
Date fini, strt;
try {
sid = (String)data.get(SESSION_ID);
getSessionFromDb(sid, data);
action =
getProcessorCode(INIData.get(((String)data.get(Processor.PROCESSOR)).trim()));
processor = getProcessor(action, data);
result = (Response)processor.process();
saveSessionToDb(sid, result);
}
catch(SQLException sqle) {
page =
getPage(INIData.get(((String)data.get(PROCESSOR)).trim()));
sqle.printStackTrace();
return new Response(PAGE_SQL_ERROR, page, data);
}
catch(FsbException fsbe) {
page =
getPage(INIData.get(((String)data.get(PROCESSOR)).trim()));
fsbe.printStackTrace();
return new Response(PAGE_RMI_ERROR, page, data);
}
return result;
}
Note that serveice is the name of the RMI service being
connected to and data is an extension
of the standard Java Hash table. The exception that is thrown
and its stack trace is as follows:
Exception: RemoteException occurred in server thread; nested
exception is:
java.rmi.UnmarshalException: error unmarshalling arguments;
nested exception is:
java.net.MalformedURLException: no protocol: of
java.rmi.ServerException: RemoteException occurred in server
thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments;
nested exception is:
java.net.MalformedURLException: no protocol: of
at
sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:336)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native
Method)
at
sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
at
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at
sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
at fsb.lib.request.RequestHandler_Stub.handle(Unknown
Source)
at SingleSignOn.getRequest(SingleSignOn.java:320)
at SingleSignOn.doPost(SingleSignOn.java:569)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at
jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:284)
at
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
Caused by: java.rmi.UnmarshalException: error unmarshalling
arguments; nested exception is:
java.net.MalformedURLException: no protocol: of
at
sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:293)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native
Method)
at
sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.MalformedURLException: no protocol: of
at java.net.URL.<init>(URL.java:567)
at java.net.URL.<init>(URL.java:464)
at java.net.URL.<init>(URL.java:413)
at
sun.rmi.server.LoaderHandler.pathToURLs(LoaderHandler.java:751)
at
sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:147)
at
java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
at
java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
at
sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)
at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306)
at
sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:290)
... 9 more
We've tried setting the ports we're using as reserved so
Windows doesn't assign them from the random pool, doesn't seem to
have any effect on the issue.
Is there a setting or property we need to change to allow for
an RMI connection from within cold fusion? Or any other
suggestions? Any help is much appreciated. Thanks!
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