HTML/Post java.lang.classcastexception

[Cole Ragland]

Recieving classcastexception with following applet source. This works on command line (java -cp . myclass.class and desktop (batch file). Any help would be appreciated.

Cole Ragland

/* 
 * Imports are explicitly named here. Feel free to 
 * use java.io.*, java.net.*, etc. syntax instead.
 */
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManagerFactory;
import java.security.KeyStore;
import java.applet.Applet;
import java.io.PrintStream;
 
public class CCJava {
    
    public static void main(String[] args) throws Exception {
        
        // Character arrays of the certificate passphrase and store 
 
passphrase
        // Note: if you have never changed the default JRE root store 
 
passphrase, 
        // it will still be "changeit".
        char[] cert_passphrase = "XXXXXX".toCharArray();
        char[] store_passphrase = "changeit".toCharArray();
         
        // SSLContext object, a protocol implementation that behaves as a 
        // factory for secure socket factories.
        SSLContext ctx = SSLContext.getInstance("TLS","SunJSSE");
 
        // Keystore object for the client certificate. Essentially an 
 
in-memory
        // collection of private keys and any associated certificate chains.
        // Use the path to the client (private) .pfx/.p12 certificate file 
 
and 
        // the certificate passphrase.
        KeyStore keyStore = KeyStore.getInstance("PKCS12");
        keyStore.load(new 
 
FileInputStream("c:\\java_scripts\\cert\\PrivateKey.pfx"), cert_passphrase);
        
        // KeyManagerFactory object needed to associate the client 
 
certificate with 
        // the SSLContext object.
        KeyManagerFactory keyManagerFactory = 
 
KeyManagerFactory.getInstance("SunX509", "SunJSSE");
        keyManagerFactory.init(keyStore, cert_passphrase);
 
        // Keystore object for the store (to access trusted server certs or 
 
CAs).
        // Use the path to the global JRE "cacerts" file or a local 
 
".keystore" file
        // and the store passphrase.
        KeyStore trustedKeyStore = KeyStore.getInstance("JKS");
        trustedKeyStore.load( new 
 
FileInputStream("C:\\j2sdk1.4.2_07\\jre\\javaws\\cacerts"), 
 
store_passphrase);
        
        // TrustManagerFactory object needed to associate the root store with 
 
the 
        // SSLContext object
        TrustManagerFactory trustManagerFactory = 
 
TrustManagerFactory.getInstance("SunX509", "SunJSSE");
        trustManagerFactory.init(trustedKeyStore);
        
        // Associate both the client certificate and the root store with the 
        // SSLContext object
        ctx.init(keyManagerFactory.getKeyManagers(), 
 
trustManagerFactory.getTrustManagers(), null);
        
        // Create an SSLSocketFactory using the SSLContext object and use 
 
that
        // factory as the default factory for HTTPS connections.
        SSLSocketFactory sslSocketFactory = ctx.getSocketFactory();
        HttpsURLConnection.setDefaultSSLSocketFactory(sslSocketFactory);
 
        // Choose either the beta or production target POST URL
        URL url = new 
 
URL("https://webportal/CGI-BIN/CCListener.exe");
        // URL url = new 
 
URL("https://webportal/CGI-BIN/CCListener.exe");
// URL url = new 
 
URL("https://webportal/CGI-BIN/DFListener.exe");
  
        // Create a URLConnection object, enable I/O, disable caching, set 
 
the Content-Type
        URLConnection c = url.openConnection();
        c.setDoInput(true);
        c.setDoOutput(true);
        c.setUseCaches(false);
        c.setRequestProperty("Content-Type","text/xml; charset=utf-8");
    
        // Create a StringBuffer object to hold the contents of the XML 
 
request file
StringBuffer sb = new StringBuffer();
String ln;
String file = "c:\\java_scripts\\appdata\\request.xml";
   
// Create a LineNumberReader object to add the contents of 
 
the XML file to the
// StringBuffer
LineNumberReader lnr = new LineNumberReader(new 
 
FileReader(file));
        while((ln = lnr.readLine()) != null) {
            sb.append(ln);
}
        
        // Create a PrintWriter object, direct its output to the 
 
URLConnection
        // object's output stream, and print the XML request across the 
        // open connection to the server.
PrintWriter pw = new PrintWriter(c.getOutputStream());
pw.println(sb.toString());
        pw.flush() ;
        
        // Reset the StringBuffer and LineNumberReader objects and then reuse
        // them to handle the XML response coming back from the server
sb.setLength(0);
lnr = new LineNumberReader(new 
 
InputStreamReader(c.getInputStream()));
        while((ln = lnr.readLine()) != null) {
            sb.append(ln);
}
        
        // Dump the XML response to standard output
System.out.println(sb);
 
    }
}

[EJFH: Added CODE tags ]
[ July 08, 2005: Message edited by: Ernest Friedman-Hill ]

[Ernest Friedman-Hill]

Hi,

Welcome to JavaRanch!

Well, this is an awful lot of code to digest; you could make things loads easier on us by letting us know which line the stack trace points to, and also telling us the message from the ClassCastException -- it tells you the actual class of the miscast object. I don't actually see any casts here, although there's so much code I may have missed one.

Finally, I'm assuming you know this is only going to work in a digitally signed applet with a properly configured security policy -- all this file access and factory-setting is forbidden otherwise (unless you're loading it locally using appletviewer.)