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  1.  Home
  2. JAVA400-L
  3. June 2004

ClassCastException in IFSFile

Hello,
I apologize ahead of time for the length of this e-mail:

        I am having an interesting problem, and I was wondering if any
of you have run across it and if you were able to fix it.

        I keep getting a ClassCastException when using the Toolbox to
connect to a V5R1 system using an IFSFile. I get the same error whether
I am trying to mkdirs() or check if the file .exists().

        I have found one other person that has had this problem and they
posted about it in the JTOpen forums. However, a true resolution was
never discovered. The problem just went away after an update of their
TCP configuration.

The original post is here:
http://www-912.ibm.com/j_dir/JTOpen.nsf/8178b1c14b1e9b6b8525624f0062fe9f
/763E3292C49D375F86256DEF00600926?OpenDocument

I borrowed his example program and tweaked it to run my own trace. He
was running his on the 400, I am running mine on a PC. Here is the
program and the trace it gives me. If anyone has any idea at all I'd
appreciate it a great deal!

I tried this with a couple old versions of JT400 and the new JTOpen off
the web site, and I get the same error.

I can run this code on many other machines connecting to other 400's and
I have no problem. The target as400 where this is happening is a v5r1
system has the recent Java group PTF's and all that good stuff.

The only odd thing I can think of is that when testing this I was not
able to update the jt400.jar on the 400 with the latest and greatest,
only the one on the PC. So, those don't match. However, even when they
do when I am using the older version, I get the exact same error, just
different line numbers.

This is running with jdk version 1.4.2 on the PC, and 1.3.1 on the 400.
The PC is a Win2k box.

Program:
========================================================================
====
import com.ibm.as400.access.AS400;
import com.ibm.as400.access.IFSFile;
import com.ibm.as400.access.Trace;

/**
 * @author dfeather
 * Type: JT400Test
 * TODO: Add description of this type.
 */
public class JT400Test {

        /**
         * 
         */
        public JT400Test() {
                super();
        }

        public static void main(String[] args) {

                AS400 as400 = null;

                try {
                        as400 = new AS400("10.0.0.10",
"xxxxxx","xxxxxx");
                        Trace.setTraceDiagnosticOn(true);
                        Trace.setTraceErrorOn(true);
                        Trace.setTraceInformationOn(true);
                        Trace.setTraceWarningOn(true);
                        Trace.setTraceOn(true);
                        if (as400 != null) {

                                as400.connectService(AS400.FILE);
                                as400.connectService(AS400.COMMAND);
                                as400.connectService(AS400.DATAQUEUE);
        
as400.connectService(AS400.RECORDACCESS);

                                String testDirPath = "/test/";
                                IFSFile tmpDir = new IFSFile(as400,
testDirPath);
                                boolean dirsx = false;
                                try {
                                        dirsx = tmpDir.mkdir();
                                }
                                catch (java.io.IOException ex) {
                                        System.out.println("Failed to
create temporary directory [" + args[0] + args[1].toLowerCase() + "]");
                                        ex.printStackTrace();
                                        dirsx = false;
                                }
                        }
                }
                catch (Exception ex) {
                        System.out.println("Other Exception:");
                        ex.printStackTrace();
                }
                finally{
                        if(as400 != null){
                                as400.disconnectAllServices();
                        }
                }
                
                System.exit(0);
        }
}
========================================================================
====
And here's the trace and exception:
========================================================================
====
Toolbox for Java - Version 5 Release 1 Modification level 0.6
Thu Jun 10 13:14:39 CDT 2004  Connecting service:  0
Thu Jun 10 13:14:39 CDT 2004  Setting up AS400 implementation object:
Thu Jun 10 13:14:39 CDT 2004    Enable SSL connections: null
Thu Jun 10 13:14:39 CDT 2004    Native optimizations allowed:  false
Thu Jun 10 13:14:39 CDT 2004    Use threaded communications:  true
Thu Jun 10 13:14:39 CDT 2004    User specified CCSID:  0
Thu Jun 10 13:14:39 CDT 2004    Socket properties:
com.ibm.as400.access.SocketProperties@1833955
Thu Jun 10 13:14:39 CDT 2004  User ID: 'JHADOCIMG'
Thu Jun 10 13:14:39 CDT 2004  Signing-on with prompting turned on.
Thu Jun 10 13:14:39 CDT 2004  Validate security...
Thu Jun 10 13:14:39 CDT 2004  Signing-on without prompting...
Thu Jun 10 13:14:39 CDT 2004  Opening a socket to verify security...
Thu Jun 10 13:14:39 CDT 2004  Loading browser security classes.
Thu Jun 10 13:14:39 CDT 2004  Netscape browser security classes not
loaded.
Thu Jun 10 13:14:39 CDT 2004  IE browser security classes not loaded.
Thu Jun 10 13:14:39 CDT 2004  Connecting to port mapper...
Thu Jun 10 13:14:39 CDT 2004  Sending port mapper request...
Thu Jun 10 13:14:39 CDT 2004  Receiving port mapper reply...
Thu Jun 10 13:14:39 CDT 2004  Adding entry to Service Port table: system
10.0.0.4, service as-signon, port 8476
Thu Jun 10 13:14:39 CDT 2004  Opening socket to server...
Thu Jun 10 13:14:39 CDT 2004  Setting socket options...
Thu Jun 10 13:14:39 CDT 2004  Socket properties:
Thu Jun 10 13:14:39 CDT 2004      Remote address: /10.0.0.4
Thu Jun 10 13:14:39 CDT 2004      Remote port:  8476
Thu Jun 10 13:14:39 CDT 2004      Local address: /10.0.0.165
Thu Jun 10 13:14:39 CDT 2004      Local port:  1184
Thu Jun 10 13:14:39 CDT 2004      Keep alive:  false
Thu Jun 10 13:14:39 CDT 2004      Receive buffer size:  8192
Thu Jun 10 13:14:39 CDT 2004      Send buffer size:  8192
Thu Jun 10 13:14:39 CDT 2004      So linger:  -1
Thu Jun 10 13:14:39 CDT 2004      So timeout:  0
Thu Jun 10 13:14:39 CDT 2004      TCP no delay:  false
Thu Jun 10 13:14:39 CDT 2004  Starting an inet socket to as-signon
Thu Jun 10 13:14:39 CDT 2004  Sending signon server exchange
client/server attributes request...
Thu Jun 10 13:14:39 CDT 2004  Receiving signon server exchange
client/server attributes reply...
Thu Jun 10 13:14:39 CDT 2004    Server vrm:
00 05 01 00 
Thu Jun 10 13:14:39 CDT 2004    Server level:   2
Thu Jun 10 13:14:39 CDT 2004  Socket opened successfully.
Thu Jun 10 13:14:39 CDT 2004  Retrieving encrypted password.
Thu Jun 10 13:14:39 CDT 2004  Sending retrieve signon information
request...
Thu Jun 10 13:14:39 CDT 2004  Receiving retrieve signon information
reply...
Thu Jun 10 13:14:39 CDT 2004  Read security validation reply...
Thu Jun 10 13:14:39 CDT 2004  Security validated successfully.
Thu Jun 10 13:14:39 CDT 2004  Signon server reports CCSID:  37
Thu Jun 10 13:14:39 CDT 2004  Sign-on completed.
Thu Jun 10 13:14:39 CDT 2004  Sending end job data stream to signon
server...
Thu Jun 10 13:14:39 CDT 2004  Sending end signon server request...
Thu Jun 10 13:14:39 CDT 2004  Service disconnected implementation:
as-signon
Thu Jun 10 13:14:39 CDT 2004  Establishing connection to server: as-file
Thu Jun 10 13:14:39 CDT 2004  Loading browser security classes.
Thu Jun 10 13:14:39 CDT 2004  Netscape browser security classes not
loaded.
Thu Jun 10 13:14:39 CDT 2004  IE browser security classes not loaded.
Thu Jun 10 13:14:39 CDT 2004  Connecting to port mapper...
Thu Jun 10 13:14:39 CDT 2004  Sending port mapper request...
Thu Jun 10 13:14:39 CDT 2004  Receiving port mapper reply...
Thu Jun 10 13:14:39 CDT 2004  Adding entry to Service Port table: system
10.0.0.4, service as-file, port 8473
Thu Jun 10 13:14:39 CDT 2004  Opening socket to server...
Thu Jun 10 13:14:39 CDT 2004  Setting socket options...
Thu Jun 10 13:14:39 CDT 2004  Socket properties:
Thu Jun 10 13:14:39 CDT 2004      Remote address: /10.0.0.4
Thu Jun 10 13:14:39 CDT 2004      Remote port:  8473
Thu Jun 10 13:14:39 CDT 2004      Local address: /10.0.0.165
Thu Jun 10 13:14:39 CDT 2004      Local port:  1186
Thu Jun 10 13:14:39 CDT 2004      Keep alive:  false
Thu Jun 10 13:14:39 CDT 2004      Receive buffer size:  8192
Thu Jun 10 13:14:39 CDT 2004      Send buffer size:  8192
Thu Jun 10 13:14:39 CDT 2004      So linger:  -1
Thu Jun 10 13:14:39 CDT 2004      So timeout:  0
Thu Jun 10 13:14:39 CDT 2004      TCP no delay:  false
Thu Jun 10 13:14:39 CDT 2004  Starting an inet socket to as-file
Thu Jun 10 13:14:39 CDT 2004  Sending exchange random seeds request...
Thu Jun 10 13:14:39 CDT 2004  Receiving exchange random seeds reply...
Thu Jun 10 13:14:39 CDT 2004  Exchange of random seeds successful.
Thu Jun 10 13:14:39 CDT 2004  Retrieving encrypted password.
Thu Jun 10 13:14:39 CDT 2004  Sending start server request...
Thu Jun 10 13:14:39 CDT 2004  Receiving start server reply...
Thu Jun 10 13:14:39 CDT 2004  Server started successfully.
Thu Jun 10 13:14:39 CDT 2004  Service connected: as-file
Thu Jun 10 13:14:39 CDT 2004  run(): Waiting for reply...
Thu Jun 10 13:14:39 CDT 2004  Connecting service:  2
Thu Jun 10 13:14:39 CDT 2004  Establishing connection to server:
as-rmtcmd
Thu Jun 10 13:14:39 CDT 2004  Loading browser security classes.
Thu Jun 10 13:14:39 CDT 2004  Netscape browser security classes not
loaded.
Thu Jun 10 13:14:39 CDT 2004  IE browser security classes not loaded.
Thu Jun 10 13:14:39 CDT 2004  Connecting to port mapper...
Thu Jun 10 13:14:39 CDT 2004  Sending port mapper request...
Thu Jun 10 13:14:39 CDT 2004  Receiving port mapper reply...
Thu Jun 10 13:14:39 CDT 2004  Adding entry to Service Port table: system
10.0.0.4, service as-rmtcmd, port 8475
Thu Jun 10 13:14:39 CDT 2004  Opening socket to server...
Thu Jun 10 13:14:39 CDT 2004  Setting socket options...
Thu Jun 10 13:14:39 CDT 2004  Socket properties:
Thu Jun 10 13:14:39 CDT 2004      Remote address: /10.0.0.4
Thu Jun 10 13:14:39 CDT 2004      Remote port:  8475
Thu Jun 10 13:14:39 CDT 2004      Local address: /10.0.0.165
Thu Jun 10 13:14:39 CDT 2004      Local port:  1188
Thu Jun 10 13:14:39 CDT 2004      Keep alive:  false
Thu Jun 10 13:14:39 CDT 2004      Receive buffer size:  8192
Thu Jun 10 13:14:39 CDT 2004      Send buffer size:  8192
Thu Jun 10 13:14:39 CDT 2004      So linger:  -1
Thu Jun 10 13:14:39 CDT 2004      So timeout:  0
Thu Jun 10 13:14:39 CDT 2004      TCP no delay:  false
Thu Jun 10 13:14:39 CDT 2004  Starting an inet socket to as-rmtcmd
Thu Jun 10 13:14:39 CDT 2004  Sending exchange random seeds request...
Thu Jun 10 13:14:39 CDT 2004  Receiving exchange random seeds reply...
Thu Jun 10 13:14:40 CDT 2004  Exchange of random seeds successful.
Thu Jun 10 13:14:40 CDT 2004  Retrieving encrypted password.
Thu Jun 10 13:14:40 CDT 2004  Sending start server request...
Thu Jun 10 13:14:40 CDT 2004  Receiving start server reply...
Thu Jun 10 13:14:40 CDT 2004  Server started successfully.
Thu Jun 10 13:14:40 CDT 2004  Service connected: as-rmtcmd
Thu Jun 10 13:14:40 CDT 2004  Connecting service:  3
Thu Jun 10 13:14:40 CDT 2004  Establishing connection to server: as-dtaq
Thu Jun 10 13:14:40 CDT 2004  Loading browser security classes.
Thu Jun 10 13:14:40 CDT 2004  Netscape browser security classes not
loaded.
Thu Jun 10 13:14:40 CDT 2004  IE browser security classes not loaded.
Thu Jun 10 13:14:40 CDT 2004  Connecting to port mapper...
Thu Jun 10 13:14:40 CDT 2004  run(): Waiting for reply...
Thu Jun 10 13:14:40 CDT 2004  Sending port mapper request...
Thu Jun 10 13:14:40 CDT 2004  Receiving port mapper reply...
Thu Jun 10 13:14:40 CDT 2004  Adding entry to Service Port table: system
10.0.0.4, service as-dtaq, port 8472
Thu Jun 10 13:14:40 CDT 2004  Opening socket to server...
Thu Jun 10 13:14:40 CDT 2004  Setting socket options...
Thu Jun 10 13:14:40 CDT 2004  Socket properties:
Thu Jun 10 13:14:40 CDT 2004      Remote address: /10.0.0.4
Thu Jun 10 13:14:40 CDT 2004      Remote port:  8472
Thu Jun 10 13:14:40 CDT 2004      Local address: /10.0.0.165
Thu Jun 10 13:14:40 CDT 2004      Local port:  1190
Thu Jun 10 13:14:40 CDT 2004      Keep alive:  false
Thu Jun 10 13:14:40 CDT 2004      Receive buffer size:  8192
Thu Jun 10 13:14:40 CDT 2004      Send buffer size:  8192
Thu Jun 10 13:14:40 CDT 2004      So linger:  -1
Thu Jun 10 13:14:40 CDT 2004      So timeout:  0
Thu Jun 10 13:14:40 CDT 2004      TCP no delay:  false
Thu Jun 10 13:14:40 CDT 2004  Starting an inet socket to as-dtaq
Thu Jun 10 13:14:40 CDT 2004  Sending exchange random seeds request...
Thu Jun 10 13:14:40 CDT 2004  Receiving exchange random seeds reply...
Thu Jun 10 13:14:40 CDT 2004  Exchange of random seeds successful.
Thu Jun 10 13:14:40 CDT 2004  Retrieving encrypted password.
Thu Jun 10 13:14:40 CDT 2004  Sending start server request...
Thu Jun 10 13:14:40 CDT 2004  Receiving start server reply...
Thu Jun 10 13:14:40 CDT 2004  Server started successfully.
Thu Jun 10 13:14:40 CDT 2004  Service connected: as-dtaq
Thu Jun 10 13:14:40 CDT 2004  run(): Waiting for reply...
Thu Jun 10 13:14:40 CDT 2004  Connecting service:  5
Thu Jun 10 13:14:40 CDT 2004  Establishing connection to server: as-ddm
Thu Jun 10 13:14:40 CDT 2004  Loading browser security classes.
Thu Jun 10 13:14:40 CDT 2004  Netscape browser security classes not
loaded.
Thu Jun 10 13:14:40 CDT 2004  IE browser security classes not loaded.
Thu Jun 10 13:14:40 CDT 2004  Opening socket to server...
Thu Jun 10 13:14:40 CDT 2004  Setting socket options...
Thu Jun 10 13:14:40 CDT 2004  Socket properties:
Thu Jun 10 13:14:40 CDT 2004      Remote address: /10.0.0.4
Thu Jun 10 13:14:40 CDT 2004      Remote port:  446
Thu Jun 10 13:14:40 CDT 2004      Local address: /10.0.0.165
Thu Jun 10 13:14:40 CDT 2004      Local port:  1191
Thu Jun 10 13:14:40 CDT 2004      Keep alive:  false
Thu Jun 10 13:14:40 CDT 2004      Receive buffer size:  8192
Thu Jun 10 13:14:40 CDT 2004      Send buffer size:  8192
Thu Jun 10 13:14:40 CDT 2004      So linger:  -1
Thu Jun 10 13:14:40 CDT 2004      So timeout:  0
Thu Jun 10 13:14:40 CDT 2004      TCP no delay:  false
Thu Jun 10 13:14:40 CDT 2004  Starting an inet socket to as-ddm
Thu Jun 10 13:14:40 CDT 2004  Exchanging DDM security information with a
V4R2 or newer system.
Thu Jun 10 13:14:40 CDT 2004  Sending DDM: V4R2 or newer system: EXCSAT
request...
Thu Jun 10 13:14:40 CDT 2004  Receiving DDM: V4R2 or newer system:
EXCSAT Reply...
Thu Jun 10 13:14:40 CDT 2004  DDM: Running to V4R4 or newer system.
Thu Jun 10 13:14:40 CDT 2004  Sending DDM: V4R4 or newer system: ACCSEC
request...
Thu Jun 10 13:14:40 CDT 2004  Receiving DDM: V4R4 or newer system:
ACCSEC reply...
Thu Jun 10 13:14:40 CDT 2004  Retrieving encrypted password.
Thu Jun 10 13:14:40 CDT 2004  Receiving DDM: V4R4 or newer system:
SECCHK reply...
Thu Jun 10 13:14:40 CDT 2004  DDM: V4R4 or newer system: SECCHK
succeeded.
Thu Jun 10 13:14:40 CDT 2004  DDM: Exchange of security attributes
completed.
Thu Jun 10 13:14:40 CDT 2004  Server started successfully.
Thu Jun 10 13:14:40 CDT 2004  Service connected: as-ddm
Thu Jun 10 13:14:40 CDT 2004  run(): Waiting for reply...
Thu Jun 10 13:14:40 CDT 2004  Connecting service:  0
Thu Jun 10 13:14:40 CDT 2004  Establishing connection to server: as-file
Thu Jun 10 13:14:40 CDT 2004  Reusing previous server object...
Thu Jun 10 13:14:40 CDT 2004  Service connected: as-file
Thu Jun 10 13:14:40 CDT 2004  Establishing connection to server: as-file
Thu Jun 10 13:14:40 CDT 2004  Reusing previous server object...
Thu Jun 10 13:14:40 CDT 2004  Getting implementation VRM.
Thu Jun 10 13:14:40 CDT 2004  Implementation VRM:
00 05 01 00 
Thu Jun 10 13:14:40 CDT 2004  send and receive(): ...
Thu Jun 10 13:14:40 CDT 2004  send(): send request...
Thu Jun 10 13:14:40 CDT 2004  AS400Server.receive
Thu Jun 10 13:14:40 CDT 2004  receive(): Reply not found. Waiting...
Thu Jun 10 13:14:40 CDT 2004  run(): Reply received:
com.ibm.as400.access.IFSReturnCodeRep@8001
Thu Jun 10 13:14:40 CDT 2004  run(): Adding reply:  1
Thu Jun 10 13:14:40 CDT 2004  run(): Notifying threads.
Thu Jun 10 13:14:40 CDT 2004  run(): Threads notified.
Thu Jun 10 13:14:40 CDT 2004  receive(): Valid reply found:  1
Thu Jun 10 13:14:40 CDT 2004  run(): Waiting for reply...
Other Exception:
java.lang.ClassCastException
        at
com.ibm.as400.access.IFSFileDescriptorImplRemote.exchangeServerAttribute
s(IFSFileDescriptorImplRemote.java:262)
        at
com.ibm.as400.access.IFSFileDescriptorImplRemote.connect(IFSFileDescript
orImplRemote.java:203)
        at
com.ibm.as400.access.IFSFileImplRemote.mkdir0(IFSFileImplRemote.java:123
8)
        at com.ibm.as400.access.IFSFile.mkdir0(IFSFile.java:2021)
        at com.ibm.as400.access.IFSFile.mkdir(IFSFile.java:2042)
        at JT400Test.main(JT400Test.java:51)
========================================================================
====

Thanks!

Dan Feather
dfeather@xxxxxxxxxxxxx



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