What to do of this error ?

Question

Hi when jsp encounter this line
it throws the above exception
<code>
java.security.AccessControlException: access denied (java.lang.RuntimePermission exitVM)
</code>
InputStream msgStream = System.in;
One similar error was rectifed by me it was java.util.PropertyPermission by modifying
j2ee/lib/security/client.policy
But i have been unable to do this one.Can someone let me know what to do ?

Answer 1

Here is the complete stuff
<code>
<%@ page language ="java" import="java.util.*" %>
<%@ page import="java.io.*" %>
<%@ page import="javax.mail.*" %>
<%@ page import="javax.mail.event.*" %>
<%@ page import="javax.mail.internet.*" %>
<%@ page import="javax.activation.*" %>
<%!
String indentStr = " ";
int level = 0;
String url=null;
String protocol="pop3";
String host = "mail.ineonet.net";
String user = "aditya_per";
String password = "7hNWsZ7e";
String mbox = "INBOX";
int port = -1;
boolean verbose = true;
boolean debug = false;
boolean showStructure = true;
boolean showMessage = true;
boolean showAlert = true;
boolean saveAttachments = true;
int attnum = 1;
int msgnum = -1;
%>
<%
InputStream msgStream = System.in;
try
     // Get a Properties object
     Properties props = System.getProperties();
     // Get a Session object
     Session sess = Session.getInstance(props, null);
     sess.setDebug(debug);
     if (showMessage) {
          MimeMessage msg = new MimeMessage(sess, msgStream);
          dumpPart(msg);
          System.exit(0);
     // Get a Store object
     Store store = null;
     if (url != null) {
          URLName urln = new URLName(url);
          store = sess.getStore(urln);
          if (showAlert) {
          store.addStoreListener(new StoreListener() {
               public void notification(StoreEvent e) {
               String s;
               if (e.getMessageType() == StoreEvent.ALERT)
                    s = "ALERT: ";
               else
                    s = "NOTICE: ";
               System.out.println(s + e.getMessage());
          store.connect();
     } else {
          if (protocol != null)          
          store = sess.getStore(protocol);
          else
          store = sess.getStore();
          // Connect
          if (host != null || user != null || password != null)
          store.connect(host, port, user, password);
          else
          store.connect();
     // Open the Folder
     Folder folder = store.getDefaultFolder();
     if (folder == null) {
     System.out.println("No default folder");
     System.exit(1);
     folder = folder.getFolder(mbox);
     if (folder == null) {
     System.out.println("Invalid folder");
     System.exit(1);
     // try to open read/write and if that fails try read-only
     try {
          folder.open(Folder.READ_WRITE);
     } catch (MessagingException ex) {
          folder.open(Folder.READ_ONLY);
     int totalMessages = folder.getMessageCount();
     if (totalMessages == 0) {
          System.out.println("Empty folder");
          folder.close(false);
          store.close();
          System.exit(1);
     if (verbose) {
          int newMessages = folder.getNewMessageCount();
          System.out.println("Total messages = " + totalMessages);
          System.out.println("New messages = " + newMessages);
          System.out.println("-------------------------------");
     if (msgnum == -1) {
          // Attributes & Flags for all messages ..
          Message[] msgs = folder.getMessages();
          // Use a suitable FetchProfile
          FetchProfile fp = new FetchProfile();
          fp.add(FetchProfile.Item.ENVELOPE);
          fp.add(FetchProfile.Item.FLAGS);
          fp.add("X-Mailer");
          folder.fetch(msgs, fp);
          for (int i = 0; i < msgs.length; i++) {
          System.out.println("--------------------------");
          System.out.println("MESSAGE #" + (i + 1) + ":");
          dumpEnvelope(msgs);
          // dumpPart(msgs[i]);
     } else {
          System.out.println("Getting message number: " + msgnum);
          Message m = null;
          try {
          m = folder.getMessage(msgnum);
          dumpPart(m);
          } catch (IndexOutOfBoundsException iex) {
          System.out.println("Message number out of range");
     folder.close(false);
     store.close();
catch(Exception xy)
System.out.println("General Failure"+xy.getMessage());
System.exit(1);
System.exit(0);     
%>
<%!
public void dumpPart(Part p) throws Exception {
     /*if (p instanceof Message)
     dumpEnvelope((Message)p);
     InputStream is = p.getInputStream();
     // If "is" is not already buffered, wrap a BufferedInputStream
     // around it.
     if (!(is instanceof BufferedInputStream))
     is = new BufferedInputStream(is);
     int c;
     while ((c = is.read()) != -1)
     System.out.write(c);
     String ct = p.getContentType();
     try {
     pr("CONTENT-TYPE: " + (new ContentType(ct)).toString());
     } catch (ParseException pex) {
     pr("BAD CONTENT-TYPE: " + ct);
     String filename = p.getFileName();
     if (filename != null)
     pr("FILENAME: " + filename);
     if (p.isMimeType("text/plain")) {
     pr("This is plain text");
     pr("---------------------------");
     if (!showStructure && !saveAttachments)
          System.out.println((String)p.getContent());
     } else if (p.isMimeType("multipart/*")) {
     pr("This is a Multipart");
     pr("---------------------------");
     Multipart mp = (Multipart)p.getContent();
     level++;
     int count = mp.getCount();
     for (int i = 0; i < count; i++)
          dumpPart(mp.getBodyPart(i));
     level--;
     } else if (p.isMimeType("message/rfc822")) {
     pr("This is a Nested Message");
     pr("---------------------------");
     level++;
     dumpPart((Part)p.getContent());
     level--;
     } else {
     if (!showStructure && !saveAttachments) {
          Object o = p.getContent();
          if (o instanceof String) {
          pr("This is a string");
          pr("---------------------------");
          System.out.println((String)o);
          } else if (o instanceof InputStream) {
          pr("This is just an input stream");
          pr("---------------------------");
          InputStream is = (InputStream)o;
          int c;
          while ((c = is.read()) != -1)
               System.out.write(c);
          } else {
          pr("This is an unknown type");
          pr("---------------------------");
          pr(o.toString());
     } else {
          // just a separator
          pr("---------------------------");
     if (saveAttachments && level != 0 && !p.isMimeType("multipart/*")) {
     String disp = p.getDisposition();
     // many mailers don't include a Content-Disposition
     if (disp == null || disp.equalsIgnoreCase(Part.ATTACHMENT)) {
          if (filename == null)
          filename = "Attachment" + attnum++;
          pr("Saving attachment to file " + filename);
          try {
          File f = new File(filename);
          if (f.exists())
               // XXX - could try a series of names
               throw new IOException("file exists");
          OutputStream os =new BufferedOutputStream(new FileOutputStream(f));
          InputStream is = p.getInputStream();
          int c;
          while ((c = is.read()) != -1)
               os.write(c);
          os.close();
          } catch (IOException ex) {
          pr("Failed to save attachment: " + ex);
          pr("---------------------------");
%>
<%!
public void dumpEnvelope(Message m) throws Exception {
     pr("This is the message envelope");
     pr("---------------------------");
     Address[] a;
     // FROM
     if ((a = m.getFrom()) != null) {
     for (int j = 0; j < a.length; j++)
          pr("FROM: " + a[j].toString());
     // TO
     if ((a = m.getRecipients(Message.RecipientType.TO)) != null) {
     for (int j = 0; j < a.length; j++)
          pr("TO: " + a[j].toString());
     // SUBJECT
     pr("SUBJECT: " + m.getSubject());
     // DATE
     Date d = m.getSentDate();
     pr("SendDate: " +
     (d != null ? d.toString() : "UNKNOWN"));
     // FLAGS
     Flags flags = m.getFlags();
     StringBuffer sb = new StringBuffer();
     Flags.Flag[] sf = flags.getSystemFlags(); // get the system flags
     boolean first = true;
     for (int i = 0; i < sf.length; i++) {
     String s;
     Flags.Flag f = sf[i];
     if (f == Flags.Flag.ANSWERED)
          s = "\\Answered";
     else if (f == Flags.Flag.DELETED)
          s = "\\Deleted";
     else if (f == Flags.Flag.DRAFT)
          s = "\\Draft";
     else if (f == Flags.Flag.FLAGGED)
          s = "\\Flagged";
     else if (f == Flags.Flag.RECENT)
          s = "\\Recent";
     else if (f == Flags.Flag.SEEN)
          s = "\\Seen";
     else
          continue;     // skip it
     if (first)
          first = false;
     else
          sb.append(' ');
     sb.append(s);
     String[] uf = flags.getUserFlags(); // get the user flag strings
     for (int i = 0; i < uf.length; i++) {
     if (first)
          first = false;
     else
          sb.append(' ');
     sb.append(uf[i]);
     pr("FLAGS: " + sb.toString());
     // X-MAILER
     String[] hdrs = m.getHeader("X-Mailer");
     if (hdrs != null)
     pr("X-Mailer: " + hdrs[0]);
     else
     pr("X-Mailer NOT available");
%>
<%!
public void pr(String s) {
     if (showStructure)
     System.out.print(indentStr.substring(0, level * 2));
     System.out.println(s);
%>
</code>